Cisco UCS C240 M5 Installation And Service Manual

Cisco UCS C240 M5 Server Installation and Service Guide

First Published: 2017-07-14

Last Modified: 2017-09-12

Americas Headquarters

Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: [phone]
800 553-NETS (6387)
Fax: [phone]

Text Part Number:

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,
INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH
THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY,
CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If the equipment causes interference to radio or television reception, which can be determined by turning the equipment off and on, users are
encouraged to try to correct the interference by using one or more of the following measures:

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•

Consult the dealer or an experienced radio/TV technician for help.

•

Modifications to this product not authorized by Cisco could void the FCC approval and negate your authority to operate the product

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version
of the UNIX operating system. All rights reserved. Copyright©1981, Regents of the University of California.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED "AS IS" WITH ALL FAULTS.
CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT
LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS
HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network
topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional
and coincidental.

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: http://

www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership

relationship between Cisco and any other company. (1110R)

©

2017 Cisco Systems, Inc. All rights reserved.

Overview

CHAPTER 1

Overview

Overview, page 1

•

External Features, page 2

•

Serviceable Component Locations, page 7

•

Summary of Server Features, page 8

•

The server is orderable in different versions, each with a different front panel/drive-backplane configuration.

• Cisco UCS C240 M5 (UCSC-C240-M5SX)—Small form-factor (SFF) drives, with 24-drive backplane.

◦ Front-loading drive bays 1—24 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA drives; or up

◦

to two 2.5-inch NVMe SSDs.

• ◦
◦
◦

• Cisco UCS C240 M5 (UCSC-C240-M5S)—SFF drives, with 8-drive backplane and DVD drive option.

◦ Front-loading drive bays 1—8 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA drives; or up

◦

to two 2.5-inch NVMe SSDs.

• Cisco UCS C240 M5 (UCSC-C240-M5L)—Large form-factor (LFF) drives, with 12-drive backplane.

◦ Front-loading drive bays 1—12 support 3.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 3.5-inch NVMe SSDs.

◦

Cisco UCS C240 M5 Server Installation and Service Guide

1

External Features

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA drives; or up

◦

to two 2.5-inch NVMe SSDs.

External Features

This topic shows the external features of the server versions.

For definitions of LED states, see Front-Panel LEDs, on page 32.

Cisco UCS C240 M5 Server (SFF Drives, 24-Drive) Front Panel Features

Figure 1: Cisco UCS C240 M5 Server (SFF Drives, 24-Drive) Front Panel

Overview

1

2

2

• UCSC-C240-M5SX: Drive bays 1—24 support

SAS/SATA drives.

•

UCSC-C240-M5SX: Drive bays 1 and 2 support

•

NVMe PCIe SSDs.

•

Cisco UCS C240 M5 Server Installation and Service Guide

Temperature status LED7

Power supply status LED8

Overview

External Features

Network link activity LED9Power button/power status LED3

Pull-out asset tag10Unit identification button/LED4

Cisco UCS C240 M5 Server (SFF Drives, 8-Drive) Front Panel Features

The following figure shows the front panel features of the small form-factor (SFF) drive, 8-drive version of
the server (UCSC-C240-M5S).

For definitions of LED states, see Front-Panel LEDs, on page 32.

Figure 2: Cisco UCS C240 M5 Server (SFF Drives, 8-Drive) Front Panel

11System status LED5

KVM connector (used with KVM cable that provides one
DB-15 VGA, one DB-9 serial, and two USB connectors)

-Fan status LED6

1

UCSC-C240-M5S: Drive bays 1—8 support SAS/SATA

Temperature status LED7

drives.

2

Power supply status LED8UCSC-C240-M5S: Drive bays 1 and 2 support NVMe

PCIe SSDs.

Network link activity LED9Power button/power status LED3

Cisco UCS C240 M5 Server Installation and Service Guide

3

External Features

Overview

DVD player10Unit identification button/LED4

Pull-out asset tag11System status LED5

-Fan status LED6

KVM connector (used with KVM cable that provides one
DB-15 VGA, one DB-9 serial, and two USB connectors)

Cisco UCS C240 M5 Server (LFF Drives, 12-Drive) Front Panel Features

The following figure shows the front panel features of the large form-factor (LFF) drive version of the server
(UCSC-C240-M5L).

For definitions of LED states, see Front-Panel LEDs, on page 32.

Figure 3: Cisco UCS C240 M5 Server (LFF Drives) Front Panel

1

UCSC-C240-M5L: Drive bays 1—12 support 3.5-inch

Temperature status LED7

SAS/SATA drives.

2

Power supply status LED8Drive bays 1 and 2 support 3.5-inch NVMe SSDs.

A size-converter drive sled is required to hold 2.5-inch
SSDs.

Network link activity LED9Power button/power status LED3

Cisco UCS C240 M5 Server Installation and Service Guide

4

Overview

External Features

Cisco UCS C240 M5 Server Rear Panel Features

The rear panel features are the same for all versions of the server.

For definitions of LED states, see Rear-Panel LEDs, on page 35.

Figure 4: Cisco UCS C240 M5 Server Rear Panel

10Unit identification button/LED4

KVM connector (used with KVM cable that provides one
DB-15 VGA, one DB-9 serial, and two USB connectors)

Pull-out asset tag11System health LED5

-Fan status LED6

1

USB 3.0 ports (two)7PCIe riser 1 (PCIe slot 1, 2, 3), with the following

options:

• 1—Slots 1 (x8), 2 (x16), 3 (x8); slot 3 requires

CPU2.

• 1B—Slots 1 (x8), 2 (x8), 3 (x8); all slots supported

by CPU1

See PCIe Slot Specifications, on page 95 for slot
specifications.

2

8PCIe riser 2 (PCIe slots 4, 5, 6), with the following

options:

• 2A—Slots 4 (x16), 5 (x16), and 6 (x8).

Dual 1-Gb/10-Gb Ethernet ports (LAN1 and LAN2)

The dual LAN ports can support 1 Gbps and 10 Gbps,
depending on the link partner capability.

• 2B—Slots 4 (x8), 5 (x16), and 6 (x8); includes

cable connector for rear-loading NVMe SSDs.

• 2C—With slots 4 (x8), 5 (x8), and 6 (x8); includes

two cable connectors for rear-loading and
front-loading NVMe SSDs.

•

Cisco UCS C240 M5 Server Installation and Service Guide

5

External Features

Overview

3

VGA video port (DB-15 connector)9Rear 2.5-inch drive bays:

•

All other C240 M5 PIDs support up to two drives:

•

When using a hardware-RAID controller card

◦

in the server, SAS/SATA drives or NVMe
SSDs are supported in the rear bays.

When using software RAID in the server,

◦

only NVMe SSDs are supported in the rear
bays.

4

1-Gb Ethernet dedicated management port10Power supplies (two, redundant as 1+1)

See Power Specifications, on page 122 for specifications
and supported options.

Serial port (RJ-45 connector)11Threaded holes for dual-hole grounding lug.5

Rear unit identification button/LED12Modular LAN-on-motherboard (mLOM) card slot (x16)6

Cisco UCS C240 M5 Server Installation and Service Guide

6

Overview

Serviceable Component Locations

This topic shows the locations of the field-replaceable components and service-related items. The view in the
following figure shows the server with the top cover removed.

Figure 5: Cisco UCS C240 M5 Server, Serviceable Component Locations

Serviceable Component Locations

Rear-drive backplane assembly11Front-loading drive bays.1

Power supplies (hot-swappable when redundant as 1+1)12Cooling fan modules (six, hot-swappable)2

3

Not visible under air baffle in this view.

See DIMM Population Rules and Memory Performance

Guidelines , on page 70 for DIMM slot numbering.

4

Not visible under air baffle in this view.

13DIMM sockets on motherboard (up to 12 per CPU)

14CPUs and heatsinks (up to two)

Rear 2.5-inch drive bays:

•

All other C240 M5 PIDs support up to two drives:

•

When using a hardware-RAID controller card

◦

in the server, SAS/SATA drives or NVMe
SSDs are supported in the rear bays.

When using software RAID in the server, only

◦

NVMe SSDs are supported in the rear bays.

Trusted platform module (TPM) socket on motherboard
(not visible in this view)

Cisco UCS C240 M5 Server Installation and Service Guide

7

Summary of Server Features

Overview

15Supercap unit (RAID backup) mounting bracket5

7

Supports either an SD card carrier with two SD card
slots; or an M.2 SSD carrier with two slots for either two
M.2 SATA or two M.2 NVMe SSDs.

17Mini storage module socket

18Chassis intrusion switch (optional)8

PCIe riser 2 (PCIe slots 4, 5, 6), with the following options:

• 2A—Slots 4 (x16), 5 (x16), and 6 (x8).

• 2B—Slots 4 (x8), 5 (x16), and 6 (x8); includes cable

connector for rear-loading NVMe SSDs.

• 2C—With slots 4 (x8), 5 (x8), and 6 (x8); includes

two cable connectors for rear-loading and
front-loading NVMe SSDs.

•

Micro-SD card socket on PCIe riser 116Internal, vertical USB 3.0 port on motherboard6

PCIe riser 1 (PCIe slot 1, 2, 3), with the following options:

• 1A—Slots 1 (x8), 2 (x16), 3 (x8); slot 2 requires

CPU2.

• 1B—Slots 1 (x8), 2 (x8), 3 (x8); all slots supported

by CPU1

Modular LOM (mLOM) card bay on chassis floor (x16
PCIe lane), not visible in this view

9

PCIe riser 2 options:

2B: One connector for rear NVMe SSDs.

•

2C: One connector for rear NVMe SSDs plus one

•

connector for front-loading NVMe SSDs

•

The Technical Specifications Sheets for all versions of this server, which include supported component part
numbers, are at Cisco UCS Servers Technical Specifications Sheets (scroll down to Technical Specifications).

Summary of Server Features

The following table lists a summary of server features.

DescriptionFeature

Cisco modular RAID controller PCIe slot (dedicated slot)19PCIe cable connectors for NVMe SSDs, only on these

RTC battery, vertical socket20Rear-drive fan module10

Securing clips for GPU cards on air baffle21

Two rack-unit (2RU) chassisChassis

Cisco UCS C240 M5 Server Installation and Service Guide

8

Overview

Summary of Server Features

DescriptionFeature

Central Processor

Baseboard management

Network and management I/O

Up to two CPUs from the Intel Xeon Processor Scalable Family. This includes CPUs from
the following series:

Intel Xeon Bronze 3XXX Processors

•

Intel Xeon Silver 4XXX Processors

•

Intel Xeon Gold 5XXX Processors

•

Intel Xeon Gold 6XXX Processors

•

Intel Xeon Platinum 8XXX Processors

•

24 DDR4 DIMM sockets on the motherboard (12 each CPU)Memory

Multi-bit error protection is supportedMulti-bit error protection

BMC, running Cisco Integrated Management Controller (Cisco IMC) firmware.

Depending on your Cisco IMC settings, Cisco IMC can be accessed through the 1-Gb dedicated
management port, the 1-Gb/10-Gb Ethernet LAN ports, or a Cisco virtual interface card.

Rear panel:

One 1-Gb Ethernet dedicated management port (RJ-45 connector)

•

Two 1-Gb/10-Gb BASE-T Ethernet LAN ports (RJ-45 connectors)

•

The dual LAN ports can support 1 Gbps and 10 Gbps, depending on the link partner
capability.

Modular LOM

One RS-232 serial port (RJ-45 connector)

•

One VGA video connector port (DB-15 connector)

•

Two USB 3.0 ports

•

Front panel:

One front-panel keyboard/video/mouse (KVM) connector that is used with the KVM

•

cable, which provides two USB 2.0, one VGA, and one DB-9 serial connector.

One dedicated socket (x16 PCIe lane) that can be used to add an mLOM card for additional
rear-panel connectivity.

The two 1-Gb/10-Gb BASE-T Ethernet LAN ports support the wake-on-LAN (WoL) standard.WoL

Cisco UCS C240 M5 Server Installation and Service Guide

9

Summary of Server Features

Overview

DescriptionFeature

Power

PCIe I/O

Two power supplies, redundant as 1+1:

•

AC power supplies 1050 W AC each

•

AC power supplies 1600 W AC each

•

DC power supplies 1050 W DC each

•

Do not mix power supply types or wattages in the server.

The advanced configuration and power interface (ACPI) 4.0 standard is supported.ACPI

Six hot-swappable fan modules for front-to-rear cooling.Cooling

Six horizontal PCIe expansion slots on two PCIe riser assemblies.

See PCIe Slot Specifications, on page 95 for specifications of the slots.

The PCIe bus slots in this server support the InfiniBand architecture.InfiniBand

Cisco UCS C240 M5 Server Installation and Service Guide

10

Overview

Summary of Server Features

DescriptionFeature

Storage, front-panel

The server is orderable in different versions, each with a different front panel/drive-backplane
configuration.

• Cisco UCS C240 M5 (UCSC-C240-M5SX)—Small form-factor (SFF) drives, with

24-drive backplane.

◦ Front-loading drive bays 1—24 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA

◦

drives; or up to two 2.5-inch NVMe SSDs.

• ◦
◦
◦

• Cisco UCS C240 M5 (UCSC-C240-M5S)—SFF drives, with 8-drive backplane and

DVD drive option.

◦ Front-loading drive bays 1—8 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA

◦

drives; or up to two 2.5-inch NVMe SSDs.

Storage, rear-panel

• Cisco UCS C240 M5 (UCSC-C240-M5L)—Large form-factor (LFF) drives, with

12-drive backplane.

◦ Front-loading drive bays 1—12 support 3.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 3.5-inch NVMe SSDs.

◦

Optionally, the two rear-loading drive bays support up to two 2.5-inch SAS/SATA

◦

drives; or up to two 2.5-inch NVMe SSDs.

SAS/SATA drives are hot-swappable. NVMe SSDs are hot-pluggable, meaning that they
must be shut down in the operating system before hot-removal.

The server can be ordered with a rear-drive backplane assembly that provides bays for two
rear-loading, 2.5-inch drives:

•

All other C240 M5 PIDs support up to two drives:

•

When using a hardware-RAID controller card in the server, SAS/SATA drives or

◦

NVMe SSDs are supported in the rear bays.

When using software RAID in the server, only NVMe SSDs are supported in the

◦

rear bays.

Cisco UCS C240 M5 Server Installation and Service Guide

11

Summary of Server Features

Overview

DescriptionFeature

Storage, internal

Storage management

RAID backup

The server has these internal storage options:

One USB 3.0 port on the motherboard.

•

Mini-storage module socket, optionally with either:

•

SD card carrier. Supports up to two SD cards.

◦

M.2 SSD carrier. Supports either two SATA M.2 SSDs or two NVMe M.2 SSDs.

◦

One micro-SD card socket on PCIe riser 1.

•

The SFF drives, 8-drive version of the server supports a front-loading DVD drive option.Other removable media

The server has a dedicated internal socket that supports one of the following storage-controller
options:

A PCIe-style Cisco modular RAID controller card (SAS/SATA).

•

• A PCIe-style interposer card for the server’s embedded SATA RAID controller.

For a detailed list of storage controller options, see Supported Storage Controllers and Cables,

on page 129.

The server has a mounting bracket on the removable air baffle for one supercap unit that is
used with the Cisco modular RAID controller card.

Integrated VGA video.Integrated video

Cisco UCS C240 M5 Server Installation and Service Guide

12

Installing the Server

Preparing for Installation, page 13

•

Installing the Server in a Rack, page 16

•

Initial Server Setup, page 21

•

NIC Mode and NIC Redundancy Settings, page 25

•

Updating the BIOS and Cisco IMC Firmware, page 27

•

Accessing the System BIOS, page 27

•

Smart Access Serial, page 27

•

Smart Access USB, page 28

•

Preparing for Installation

CHAPTER 2

This section contains the following topics:

Installation Warnings and Guidelines

Note

Before you install, operate, or service a server, review the Regulatory Compliance and Safety Information

for Cisco UCS C-Series Servers for important safety information.

Cisco UCS C240 M5 Server Installation and Service Guide

13

Installation Warnings and Guidelines

Installing the Server

Warning

Warning

Warning

Warning

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before
you work on any equipment, be aware of the hazards involved with electrical circuitry and be
familiar with standard practices for preventing accidents. Use the statement number provided at
the end of each warning to locate its translation in the translated safety warnings that accompanied
this device.

Statement 1071

To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of: 35° C (95° F).

Statement 1047

The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device.

Statement 1019

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure
that the protective device is rated not greater than: 250 V, 15 A.

Warning

Warning

Caution

Statement 1005

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock, and key, or other means of security.

Statement 1017

To ensure proper airflow it is necessary to rack the servers using rail kits. Physically placing the units on
top of one another or “stacking” without the use of the rail kits blocks the air vents on top of the servers,
which could result in overheating, higher fan speeds, and higher power consumption. We recommend that
you mount your servers on rail kits when you are installing them into the rack because these rails provide
the minimal spacing required between the servers. No additional spacing between the servers is required
when you mount the units using rail kits.

Cisco UCS C240 M5 Server Installation and Service Guide

14

Installing the Server

Rack Requirements

Caution

Avoid uninterruptible power supply (UPS) types that use ferroresonant technology. These UPS types can
become unstable with systems such as the Cisco UCS, which can have substantial current draw fluctuations
from fluctuating data traffic patterns.

When you are installing a server, use the following guidelines:

Plan your site configuration and prepare the site before installing the server. See the Cisco UCS Site

•

Preparation Guide for the recommended site planning tasks.

Ensure that there is adequate space around the server to allow for accessing the server and for adequate

•

airflow. The airflow in this server is from front to back.

Ensure that the air-conditioning meets the thermal requirements listed in the Environmental Specifications,

•

on page 122.

Ensure that the cabinet or rack meets the requirements listed in the Rack Requirements, on page 15.

•

Ensure that the site power meets the power requirements listed in the Power Specifications, on page

•

122. If available, you can use an uninterruptible power supply (UPS) to protect against power failures.

Rack Requirements

The rack must be of the following type:

A standard 19-in. (48.3-cm) wide, four-post EIA rack, with mounting posts that conform to English

•

universal hole spacing, per section 1 of ANSI/EIA-310-D-1992.

The rack-post holes can be square 0.38-inch (9.6 mm), round 0.28-inch (7.1 mm), #12-24 UNC, or

•

#10-32 UNC when you use the Cisco-supplied slide rails.

The minimum vertical rack space per server must be two rack units (RUs), equal to 3.5 in. (88.9 mm).

•

Supported Cisco Slide Rail Kits

The server supports the following rail kit options:

Cisco part UCSC-RAILB-M4= (ball-bearing slide rail kit)

•

Cisco part UCSC-CMAF-M4= (cable management arm)

•

Rack Installation Tools Required

The slide rails sold by Cisco Systems for this server do not require tools for installation.

Slide Rail and Cable Management Arm Dimensions

The slide rails for this server have an adjustment range of 24 to 36 inches (610 to 914 mm).

The optional cable management arm (CMA) adds additional length requirements:

The additional distance from the rear of the server to the rear of the CMA is 5.4 inches (137.4 mm).

•

The total length of the server including the CMA is 35.2 inches (894 mm).

•

Cisco UCS C240 M5 Server Installation and Service Guide

15

Installing the Server in a Rack

Installing the Server in a Rack

Installing the Server

Step 1

Warning

Attach the inner rails to the sides of the server:

a) Align an inner rail with one side of the server so that the three keyed slots in the rail align with the three pegs on the

b) Set the keyed slots over the pegs, and then slide the rail toward the front to lock it in place on the pegs. The front slot

c) Install the second inner rail to the opposite side of the server.

Figure 6: Attaching the Inner Rail to the Side of the Server

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:

This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

When mounting this unit in a partially filled rack, load the rack from the bottom to the top with
the heaviest component at the bottom of the rack.

If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.

Statement 1006

side of the server.

has a metal clip that locks over the front peg.

Step 2

16

Inner rail2Front of server1

Open the front securing plate on both slide-rail assemblies. The front end of the slide-rail assembly has a spring-loaded
securing plate that must be open before you can insert the mounting pegs into the rack-post holes.

Cisco UCS C240 M5 Server Installation and Service Guide

Installing the Server

On the outside of the assembly, push the green-arrow button toward the rear to open the securing plate.

Figure 7: Front Securing Mechanism, Inside of Front End

Installing the Server in a Rack

Step 3

Securing plate shown pulled back to the open

3Front mounting pegs1

position

2

-Rack post between mounting pegs and opened

securing plate

Install the outer slide rails into the rack:

a) Align one slide-rail assembly front end with the front rack-post holes that you want to use.

The slide rail front-end wraps around the outside of the rack post and the mounting pegs enter the rack-post holes
from the outside-front. See Figure 7: Front Securing Mechanism, Inside of Front End, on page 17.

Note

The rack post must be between the mounting pegs and the open securing

plate.
b) Push the mounting pegs into the rack-post holes from the outside-front.
c) Press the securing plate release button, marked PUSH. The spring-loaded securing plate closes to lock the pegs in

place.

d) Adjust the slide-rail length, and then push the rear mounting pegs into the corresponding rear rack-post holes. The

slide rail must be level front-to-rear.
The rear mounting pegs enter the rear rack-post holes from the inside of the rack post.

e) Attach the second slide-rail assembly to the opposite side of the rack. Ensure that the two slide-rail assemblies are

at the same height and are level front-to-back.

f) Pull the inner slide rails on each assembly out toward the rack front until they hit the internal stops and lock in place.

Step 4

Insert the server into the slide rails:

Caution

This server can weigh up to 64 pounds (29 kilograms) when fully loaded with components. We recommend
that you use a minimum of two people or a mechanical lift when lifting the server. Attempting this procedure
alone could result in personal injury or equipment damage.

a) Align the rear ends of the inner rails that are attached to the server sides with the front ends of the empty slide rails

on the rack.

Cisco UCS C240 M5 Server Installation and Service Guide

17

Installing the Server

Installing the Server in a Rack

b) Push the inner rails into the slide rails on the rack until they stop at the internal stops.
c) Slide the inner-rail release clip toward the rear on both inner rails, and then continue pushing the server into the rack

until its front slam-latches engage with the rack posts.

Figure 8: Inner-Rail Release Clip

Outer slide rail attached to rack post3Inner-rail release clip1

Step 5

2

-Inner rail attached to server and inserted into outer

slide rail

(Optional) Secure the server in the rack more permanently by using the two screws that are provided with the slide rails.
Perform this step if you plan to move the rack with servers installed.
With the server fully pushed into the slide rails, open a hinged slam latch lever on the front of the server and insert a
screw through the hole that is under the lever. The screw threads into the static part of the rail on the rack post and
prevents the server from being pulled out. Repeat for the opposite slam latch.

Cisco UCS C240 M5 Server Installation and Service Guide

18

Installing the Server

Installing the Cable Management Arm (Optional)

Installing the Cable Management Arm (Optional)

Step 1

Note

The cable management arm (CMA) is reversible left-to-right. To reverse the CMA, see Reversing the

Cable Management Arm (Optional), on page 20 before installation.

With the server pushed fully into the rack, slide the CMA tab of the CMA arm that is farthest from the server onto the
end of the stationary slide rail that is attached to the rack post. Slide the tab over the end of the rail until it clicks and
locks.

Figure 9: Attaching the CMA to the Rear Ends of the Slide Rails

1

end of stationary outer slide rail.

2

end of inner slide rail attached to server.

CMA tab on width-adjustment slider attaches to end

3CMA tab on arm farthest from server attaches to

of stationary outer slide rail.

Rear of server4CMA tab on arm closest to the server attaches to

Cisco UCS C240 M5 Server Installation and Service Guide

19

Reversing the Cable Management Arm (Optional)

Installing the Server

Step 2

Slide the CMA tab that is closest to the server over the end of the inner rail that is attached to the server. Slide the tab
over the end of the rail until it clicks and locks

Step 3

Pull out the width-adjustment slider that is at the opposite end of the CMA assembly until it matches the width of your
rack.

Step 4

Slide the CMA tab that is at the end of the width-adjustment slider onto the end of the stationary slide rail that is attached
to the rack post. Slide the tab over the end of the rail until it clicks and locks.

Step 5

Open the hinged flap at the top of each plastic cable guide and route your cables through the cable guides as desired.

Reversing the Cable Management Arm (Optional)

Step 1
Step 2
Step 3

Rotate the entire CMA assembly 180 degrees, left-to-right. The plastic cable guides must remain pointing upward.

Flip the tabs at the ends of the CMA arms so that they point toward the rear of the server.

Pivot the tab that is at the end of the width-adjustment slider. Depress and hold the metal button on the outside of the
tab and pivot the tab 180 degrees so that it points toward the rear of the server.

Figure 10: Reversing the CMA

Metal button on outside of tab2CMA tab on end of width-adjustment slider1

Cisco UCS C240 M5 Server Installation and Service Guide

20

Installing the Server

Initial Server Setup

Initial Server Setup

Note

This section describes how to power on the server, assign an IP address, and connect to server management
when using the server in standalone mode. To use the server in Cisco UCS Manager integration, specific
cabling and settings are required. See Installation For Cisco UCS Manager Integration, on page 165.

Server Default Settings

The server is shipped with these default settings:

The NIC mode is Shared LOM EXT.

•

Shared LOM EXT mode enables the 1-Gb/10-Gb Ethernet ports and the ports on any installed Cisco
virtual interface card (VIC) to access the Cisco Integrated Management Interface (Cisco IMC). If you
want to use the 10/100/1000 dedicated management ports to access Cisco IMC, you can connect to the
server and change the NIC mode as described in Setting Up the System With the Cisco IMC Configuration

Utility, on page 23.

The NIC redundancy is Active-Active. All Ethernet ports are utilized simultaneously.

•

DHCP is enabled.

•

IPv4 is enabled.

•

Connection Methods

There are two methods for connecting to the system for initial setup:

• Local setup—Use this procedure if you want to connect a keyboard and monitor directly to the system

for setup. This procedure can use a KVM cable (Cisco PID N20-BKVM) or the ports on the rear of the
server.

• Remote setup—Use this procedure if you want to perform setup through your dedicated management

LAN.

Note

This section contains the following topics:

To configure the system remotely, you must have a DHCP server on the same network
as the system. Your DHCP server must be preconfigured with the range of MAC
addresses for this server node. The MAC address is printed on a label that is on the
pull-out asset tag on the front panel. This server node has a range of six MAC addresses
assigned to the Cisco IMC. The MAC address printed on the label is the beginning of
the range of six contiguous MAC addresses.

Cisco UCS C240 M5 Server Installation and Service Guide

21

Connecting to the Server Locally For Setup

Connecting to the Server Locally For Setup

This procedure requires the following equipment:

VGA monitor

•

USB keyboard

•

Either the supported Cisco KVM cable (Cisco PID N20-BKVM); or a USB cable and VGA DB-15 cable

•

Installing the Server

Step 1

Step 2

Step 3

Step 4

Attach a power cord to each power supply in your server, and then attach each power cord to a grounded AC power
outlet.
If you are using DC power supplies, see Installing DC Power Supplies (First Time Installation), on page 91.

Wait for approximately two minutes to let the server boot to standby power during the first bootup. You can verify system
power status by looking at the system Power Status LED on the front panel. The system is in standby power mode when
the LED is amber.

Connect a USB keyboard and VGA monitor to the server using one of the following methods:

Connect an optional KVM cable (Cisco PID N20-BKVM) to the KVM connector on the front panel. Connect your

•

USB keyboard and VGA monitor to the KVM cable.

Connect a USB keyboard and VGA monitor to the corresponding connectors on the rear panel.

•

Open the Cisco IMC Configuration Utility:

a) Press and hold the front panel power button for four seconds to boot the server.
b) During bootup, press F8 when prompted to open the Cisco IMC Configuration Utility.

Continue with Setting Up the System With the Cisco IMC Configuration Utility, on page 23.

Connecting to the Server Remotely For Setup

This procedure requires the following equipment:

One RJ-45 Ethernet cable that is connected to your management LAN.

•

Cisco UCS C240 M5 Server Installation and Service Guide

22

Installing the Server

Setting Up the System With the Cisco IMC Configuration Utility

Before You Begin

Step 1

Step 2
Step 3
Step 4

Step 5
Step 6
Step 7

Step 8
Step 9

Note

To configure the system remotely, you must have a DHCP server on the same network as the system.
Your DHCP server must be preconfigured with the range of MAC addresses for this server node. The
MAC address is printed on a label that is on the pull-out asset tag on the front panel. This server node has
a range of six MAC addresses assigned to the Cisco IMC. The MAC address printed on the label is the
beginning of the range of six contiguous MAC addresses.

Attach a power cord to each power supply in your server, and then attach each power cord to a grounded AC power
outlet.
If you are using DC power supplies, see Installing DC Power Supplies (First Time Installation), on page 91.

Wait for approximately two minutes to let the server boot to standby power during the first bootup. You can verify system
power status by looking at the system Power Status LED on the front panel. The system is in standby power mode when
the LED is amber.

Plug your management Ethernet cable into the dedicated management port on the rear panel.

Allow your preconfigured DHCP server to assign an IP address to the server node.

Use the assigned IP address to access and log in to the Cisco IMC for the server node. Consult with your DHCP server
administrator to determine the IP address.

Note

The default user name for the server is admin. The default password is password.

From the Cisco IMC Server Summary page, click Launch KVM Console. A separate KVM console window opens.

From the Cisco IMC Summary page, click Power Cycle Server. The system reboots.

Select the KVM console window.

Note

The KVM console window must be the active window for the following keyboard actions to
work.

When prompted, press F8 to enter the Cisco IMC Configuration Utility. This utility opens in the KVM console window.

Continue with Setting Up the System With the Cisco IMC Configuration Utility, on page 23.

Setting Up the System With the Cisco IMC Configuration Utility

Before You Begin

The following procedure is performed after you connect to the system and open the Cisco IMC Configuration
Utility.

Step 1

Set the NIC mode to choose which ports to use to access Cisco IMC for server management:

• Shared LOM EXT (default)—This is the shared LOM extended mode, the factory-default setting. With this mode,

the Shared LOM and Cisco Card interfaces are both enabled. You must select the default Active-Active NIC
redundancy setting in the following step.

Cisco UCS C240 M5 Server Installation and Service Guide

23

Setting Up the System With the Cisco IMC Configuration Utility

In this NIC mode, DHCP replies are returned to both the shared LOM ports and the Cisco card ports. If the system
determines that the Cisco card connection is not getting its IP address from a Cisco UCS Manager system because
the server is in standalone mode, further DHCP requests from the Cisco card are disabled. Use the Cisco Card NIC
mode if you want to connect to Cisco IMC through a Cisco card in standalone mode.

• Shared LOM—The 1-Gb/10-Gb Ethernet ports are used to access Cisco IMC. You must select either the Active-Active

or Active-standby NIC redundancy setting in the following step.

• Dedicated—The dedicated management port is used to access Cisco IMC. You must select the None NIC redundancy

setting in the following step.

• Cisco Card—The ports on an installed Cisco UCS Virtual Interface Card (VIC) are used to access the Cisco IMC.

You must select either the Active-Active or Active-standby NIC redundancy setting in the following step.

See also the required VIC Slot setting below.

• VIC Slot—Only if you use the Cisco Card NIC mode, you must select this setting to match where your VIC is

installed. The choices are Riser1, Riser2, or Flex-LOM (the mLOM slot).

If you select Riser1, you must install the VIC in slot 1.

◦

Installing the Server

Step 2

Step 3

If you select Riser2, you must install the VIC in slot 2.

◦

If you select Flex-LOM, you must install an mLOM-style VIC in the mLOM slot.

◦

Set the NIC redundancy to your preference. This server has three possible NIC redundancy settings:

• None—The Ethernet ports operate independently and do not fail over if there is a problem. This setting can be used

only with the Dedicated NIC mode.

• Active-standby—If an active Ethernet port fails, traffic fails over to a standby port. Shared LOM and Cisco Card

modes can each use either Active-standby or Active-active settings.

• Active-active (default)—All Ethernet ports are utilized simultaneously. The Shared LOM EXT mode must use only

this NIC redundancy setting. Shared LOM and Cisco Card modes can each use either Active-standby or Active-active
settings.

Choose whether to enable DHCP for dynamic network settings, or to enter static network settings.

Note

Before you enable DHCP, you must preconfigure your DHCP server with the range of MAC addresses for this
server. The MAC address is printed on a label on the rear of the server. This server has a range of six MAC
addresses assigned to Cisco IMC. The MAC address printed on the label is the beginning of the range of six
contiguous MAC addresses.

The static IPv4 and IPv6 settings include the following:

The Cisco IMC IP address.

•

For IPv6, valid values are 1 - 127.

The gateway.

•

For IPv6, if you do not know the gateway, you can set it as none by entering :: (two colons).

The preferred DNS server address.

•

For IPv6, you can set this as none by entering :: (two colons).

Cisco UCS C240 M5 Server Installation and Service Guide

24

Installing the Server

NIC Mode and NIC Redundancy Settings

Step 4
Step 5

Step 6
Step 7
Step 8
Step 9

Step 10

Step 11
Step 12

Step 13

(Optional) Make VLAN settings.

Press F1 to go to the second settings window, then continue with the next step.
From the second window, you can press F2 to switch back to the first window.

(Optional) Set a hostname for the server.

(Optional) Enable dynamic DNS and set a dynamic DNS (DDNS) domain.

(Optional) If you check the Factory Default check box, the server reverts to the factory defaults.

(Optional) Set a default user password.

Note

The factory default username for the server is admin. The default password is password.

(Optional) Enable auto-negotiation of port settings or set the port speed and duplex mode manually.

Note

Auto-negotiation is applicable only when you use the Dedicated NIC mode. Auto-negotiation sets the port speed
and duplex mode automatically based on the switch port to which the server is connected. If you disable
auto-negotiation, you must set the port speed and duplex mode manually.

(Optional) Reset port profiles and the port name.

Press F5 to refresh the settings that you made. You might have to wait about 45 seconds until the new settings appear
and the message, “Network settings configured” is displayed before you reboot the server in the next step.

Press F10 to save your settings and reboot the server.

Note

If you chose to enable DHCP, the dynamically assigned IP and MAC addresses are displayed on the console
screen during bootup.

What to Do Next

Use a browser and the IP address of the Cisco IMC to connect to the Cisco IMC management interface. The
IP address is based upon the settings that you made (either a static address or the address assigned by your
DHCP server).

Note

The factory default username for the server is admin. The default password is password.

To manage the server, see the Cisco UCS C-Series Rack-Mount Server Configuration Guide or the Cisco UCS
C-Series Rack-Mount Server CLI Configuration Guide for instructions on using those interfaces for your
Cisco IMC release. The links to the configuration guides are in the Cisco UCS C-Series Documentation

Roadmap.

NIC Mode and NIC Redundancy Settings

Table 1: Valid NIC Redundancy Settings For Each NIC Mode

Valid NIC Redundancy SettingsNIC Mode

Active-activeShared LOM EXT

NoneDedicated

Cisco UCS C240 M5 Server Installation and Service Guide

25

NIC Mode and NIC Redundancy Settings

Installing the Server

Shared LOM

Active-active

Active-standby

Cisco Card

Active-active

Active-standby

This server has the following NIC mode settings that you can choose from:

• Shared LOM EXT (default)—This is the shared LOM extended mode, the factory-default setting. With

this mode, the Shared LOM and Cisco Card interfaces are both enabled. You must select the default
Active-Active NIC redundancy setting in the following step.

In this NIC mode, DHCP replies are returned to both the shared LOM ports and the Cisco card ports. If
the system determines that the Cisco card connection is not getting its IP address from a Cisco UCS
Manager system because the server is in standalone mode, further DHCP requests from the Cisco card
are disabled. Use the Cisco Card NIC mode if you want to connect to Cisco IMC through a Cisco card
in standalone mode.

• Shared LOM—The 1-Gb/10-Gb Ethernet ports are used to access Cisco IMC. You must select either

the Active-Active or Active-standby NIC redundancy setting in the following step.

• Dedicated—The dedicated management port is used to access Cisco IMC. You must select the None

NIC redundancy setting in the following step.

• Cisco Card—The ports on an installed Cisco UCS Virtual Interface Card (VIC) are used to access the

Cisco IMC. You must select either the Active-Active or Active-standby NIC redundancy setting in the
following step.

See also the required VIC Slot setting below.

• VIC Slot—Only if you use the Cisco Card NIC mode, you must select this setting to match where your

VIC is installed. The choices are Riser1, Riser2, or Flex-LOM (the mLOM slot).

If you select Riser1, you must install the VIC in slot 1.

◦

If you select Riser2, you must install the VIC in slot 2.

◦

If you select Flex-LOM, you must install an mLOM-style VIC in the mLOM slot.

◦

This server has the following NIC redundancy settings that you can choose from:

• None—The Ethernet ports operate independently and do not fail over if there is a problem. This setting

can be used only with the Dedicated NIC mode.

• Active-standby—If an active Ethernet port fails, traffic fails over to a standby port. Shared LOM and

Cisco Card modes can each use either Active-standby or Active-active settings.

• Active-active (default)—All Ethernet ports are utilized simultaneously. The Shared LOM EXT mode

must use only this NIC redundancy setting. Shared LOM and Cisco Card modes can each use either
Active-standby or Active-active settings.

Cisco UCS C240 M5 Server Installation and Service Guide

26

Installing the Server

Updating the BIOS and Cisco IMC Firmware

Updating the BIOS and Cisco IMC Firmware

Caution

When you upgrade the BIOS firmware, you must also upgrade the Cisco IMC firmware to the same version
or the server does not boot. Do not power off the server until the BIOS and Cisco IMC firmware are
matching or the server does not boot.

Cisco provides the Cisco Host Upgrade Utility to assist with simultaneously upgrading the BIOS, Cisco
IMC, and other firmware to compatible levels.

The server uses firmware obtained from and certified by Cisco. Cisco provides release notes with each firmware
image. There are several possible methods for updating the firmware:

Recommended method for firmware update: Use the Cisco Host Upgrade Utility to simultaneously

•

upgrade the Cisco IMC, BIOS, and component firmware to compatible levels.

See the Cisco Host Upgrade Utility Quick Reference Guide for your firmware release at the documentation
roadmap link below.

You can upgrade the Cisco IMC and BIOS firmware by using the Cisco IMC GUI interface.

•

See the Cisco UCS C-Series Rack-Mount Server Configuration Guide.

You can upgrade the Cisco IMC and BIOS firmware by using the Cisco IMC CLI interface.

•

See the Cisco UCS C-Series Rack-Mount Server CLI Configuration Guide.

For links to the documents listed above, see the Cisco UCS C-Series Documentation Roadmap.

Accessing the System BIOS

Step 1

Step 2
Step 3
Step 4
Step 5
Step 6

Enter the BIOS Setup Utility by pressing the F2 key when prompted during bootup.

Note

Use the arrow keys to select the BIOS menu page.

Highlight the field to be modified by using the arrow keys.

Press Enter to select the field that you want to change, and then modify the value in the field.

Press the right arrow key until the Exit menu screen is displayed.

Follow the instructions on the Exit menu screen to save your changes and exit the setup utility (or press F10). You can
exit without saving changes by pressing Esc.

The version and build of the current BIOS are displayed on the Main page of the
utility.

Smart Access Serial

This server supports the Smart Access Serial feature. This feature allows you to switch between host serial
and Cisco IMC CLI.

Cisco UCS C240 M5 Server Installation and Service Guide

27

Smart Access USB

Installing the Server

This feature has the following requirements:

•

A serial cable connection, which can use either the RJ-45 serial connector on the server rear panel,

◦

or a DB-9 connection when using the KVM cable (Cisco PID N20-BKVM) on the front-panel
KVM console connector.

Console redirection must be enabled in the server BIOS.

◦

Terminal type must be set to VT100+ or VTUFT8.

◦

Serial-over-LAN (SOL) must be disabled (SOL is disabled by default).

◦

To switch from host serial to Cisco IMC CLI, press Esc+9.

•

You must enter your Cisco IMC credentials to authenticate the connection.

To switch from Cisco IMC CLI to host serial, press Esc+8.

•

You cannot switch to Cisco IMC CLI if the serial-over-LAN (SOL) feature is enabled.Note

After a session is created, it is shown in the CLI or web GUI by the name serial.

•

Smart Access USB

This server supports the Smart Access USB feature. The board management controller (BMC) in this server
can accept a USB mass storage device and access the data on it. This feature allows you to use the front-panel
USB device as a medium to transfer data between the BMC and the user without need for network connectivity.
This can be useful, for example, when remote BMC interfaces are not yet available, or are not accessible due
to network misconfiguration.

This feature has the following requirements:

•

The KVM cable (Cisco PID N20-BKVM) connected to the front panel KVM console connector.

◦

A USB storage device connected to one of the USB 2.0 connectors on the KVM cable. The USB

◦

device must draw less than 500 mA to avoid disconnect by the current-protection circuit.

Note

You can use USB 3.0-based devices, but they will operate at USB 2.0 speed.

◦

We recommend that the USB device have only one partition.

◦

Any mouse or keyboard that is connected to the KVM cable is disconnected when you
enable Smart Access USB.

The file system formats supported are: FAT16, FAT32, MSDOS, EXT2, EXT3, and EXT4. NTFS

◦

is not supported.

The front-panel KVM connector has been designed to switch the USB port between Host OS and BMC.

•

Cisco UCS C240 M5 Server Installation and Service Guide

28

Installing the Server

Smart Access USB

Smart Access USB can be enabled or disabled using any of the BMC user interfaces. For example, you

•

can use the Cisco IMC Configuration Utility that is accessed by pressing F8 when prompted during
bootup.

Enabled: the front-panel USB device is connected to the BMC.

◦

Disabled: the front-panel USB device is connected to the host.

◦

In a case where no management network is available to connect remotely to Cisco IMC, a Device

•

Firmware Update (DFU) shell over serial cable can be used to generate and download technical support
files to the USB device that is attached to front panel USB port.

Cisco UCS C240 M5 Server Installation and Service Guide

29

Smart Access USB

Installing the Server

Cisco UCS C240 M5 Server Installation and Service Guide

30

Maintaining the Server

This chapter contains the following sections:

Status LEDs and Buttons, page 31

•

Preparing For Component Installation, page 39

•

Removing and Replacing Components, page 43

•

Service Headers and Jumpers, page 112

•

Status LEDs and Buttons

This section contains information for interpreting LED states.

CHAPTER 3

Cisco UCS C240 M5 Server Installation and Service Guide

31

Front-Panel LEDs

Front-Panel LEDs

Figure 11: Front Panel LEDs

Maintaining the Server

Table 2: Front Panel LEDs, Definition of States

1

SAS

SAS/SATA drive fault

Note

NVMe solid state drive (SSD) drive tray LEDs have
different behavior than SAS/SATA drive trays.

SAS/SATA drive activity LED2

SAS

StatesLED Name

• Off—The hard drive is operating properly.

• Amber—Drive fault detected.

• Amber, blinking—The device is rebuilding.

• Amber, blinking with one-second interval—Drive locate

function activated in the software.

• Off—There is no hard drive in the hard drive tray (no

access, no fault).

• Green—The hard drive is ready.

• Green, blinking—The hard drive is reading or writing

data.

Cisco UCS C240 M5 Server Installation and Service Guide

32

Maintaining the Server

Front-Panel LEDs

1

NVMe

NVMe

NVMe SSD drive fault

Note

NVMe solid state drive (SSD) drive tray LEDs have
different behavior than SAS/SATA drive trays.

NVMe SSD activity2

Power button/LED3

• Off—The drive is not in use and can be safely removed.

• Green—The drive is in use and functioning properly.

• Green, blinking—the driver is initializing following

insertion or the driver is unloading following an eject
command.

• Amber—The drive has failed.

• Amber, blinking—A drive Locate command has been

issued in the software.

• Off—No drive activity.

• Green, blinking—There is drive activity.

• Off—There is no AC power to the server.

• Amber—The server is in standby power mode. Power

is supplied only to the Cisco IMC and some motherboard
functions.

• Green—The server is in main power mode. Power is

supplied to all server components.

Unit identification4

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is

activated.

Cisco UCS C240 M5 Server Installation and Service Guide

33

Front-Panel LEDs

Maintaining the Server

System health5

• Green—The server is running in normal operating

condition.

• Green, blinking—The server is performing system

initialization and memory check.

• Amber, steady—The server is in a degraded operational

state (minor fault). For example:

Power supply redundancy is lost.

◦

CPUs are mismatched.

◦

At least one CPU is faulty.

◦

At least one DIMM is faulty.

◦

At least one drive in a RAID configuration failed.

◦

• Amber, 2 blinks—There is a major fault with the system

board.

• Amber, 3 blinks—There is a major fault with the memory

DIMMs.

• Amber, 4 blinks—There is a major fault with the CPUs.

Power supply status6

• Green—All power supplies are operating normally.

• Amber, steady—One or more power supplies are in a

degraded operational state.

• Amber, blinking—One or more power supplies are in a

critical fault state.

Fan status7

• Green—All fan modules are operating properly.

• Amber, blinking—One or more fan modules breached

the non-recoverable threshold.

Network link activity8

• Off—The Ethernet LOM port link is idle.

• Green—One or more Ethernet LOM ports are link-active,

but there is no activity.

• Green, blinking—One or more Ethernet LOM ports are

link-active, with activity.

Cisco UCS C240 M5 Server Installation and Service Guide

34

Maintaining the Server

Rear-Panel LEDs

Temperature status9

DVD drive activity10

Rear-Panel LEDs

Figure 12: Rear Panel LEDs

• Green—The server is operating at normal temperature.

• Amber, steady—One or more temperature sensors

breached the critical threshold.

• Amber, blinking—One or more temperature sensors

breached the non-recoverable threshold.

• Off—The drive is idle.

• Green, steady—The drive is spinning up a disk.

• Green, blinking—The drive is accessing data.

Table 3: Rear Panel LEDs, Definition of States

1-Gb/10-Gb Ethernet link speed (on both LAN1 and LAN2)1

1-Gb/10-Gb Ethernet link status (on both LAN1 and LAN2)2

StatesLED Name

• Off—Link speed is 100 Mbps.

• Amber—Link speed is 1 Gbps.

• Green—Link speed is 10 Gbps.

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

Cisco UCS C240 M5 Server Installation and Service Guide

35

Rear-Panel LEDs

Maintaining the Server

1-Gb Ethernet dedicated management link speed3

• Off—Link speed is 10 Mbps.

• Amber—Link speed is 100 Mbps.

• Green—Link speed is 1 Gbps.

1-Gb Ethernet dedicated management link status4

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

Rear unit identification5

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is

activated.

Power supply status (one LED each power supply unit)6

AC power supplies:

• Off—No AC input (12 V main power off, 12 V standby

power off).

• Green, blinking—12 V main power off; 12 V standby

power on.

• Green, solid—12 V main power on; 12 V standby power

on.

• Amber, blinking—Warning threshold detected but 12 V

main power on.

• Amber, solid—Critical error detected; 12 V main power

off (for example, over-current, over-voltage, or
over-temperature failure).

DC power supply (UCSC-PSUV2-1050DC):

• Off—No DC input (12 V main power off, 12 V standby

power off).

• Green, blinking—12 V main power off; 12 V standby

power on.

• Green, solid—12 V main power on; 12 V standby power

on.

• Amber, blinking—Warning threshold detected but 12 V

main power on.

• Amber, solid—Critical error detected; 12 V main power

off (for example, over-current, over-voltage, or
over-temperature failure).

Cisco UCS C240 M5 Server Installation and Service Guide

36

Maintaining the Server

Rear-Panel LEDs

7

SAS

SAS

7

NVMe

SAS/SATA drive fault

Note

NVMe solid state drive (SSD) drive tray LEDs have
different behavior than SAS/SATA drive trays.

SAS/SATA drive activity LED8

NVMe SSD drive fault

Note

NVMe solid state drive (SSD) drive tray LEDs have
different behavior than SAS/SATA drive trays.

• Off—The hard drive is operating properly.

• Amber—Drive fault detected.

• Amber, blinking—The device is rebuilding.

• Amber, blinking with one-second interval—Drive locate

function activated in the software.

• Off—There is no hard drive in the hard drive tray (no

access, no fault).

• Green—The hard drive is ready.

• Green, blinking—The hard drive is reading or writing

data.

• Off—The drive is not in use and can be safely removed.

• Green—The drive is in use and functioning properly.

• Green, blinking—the driver is initializing following

insertion or the driver is unloading following an eject
command.

NVMe

• Amber—The drive has failed.

• Amber, blinking—A drive Locate command has been

issued in the software.

NVMe SSD activity8

• Off—No drive activity.

• Green, blinking—There is drive activity.

Cisco UCS C240 M5 Server Installation and Service Guide

37

Internal Diagnostic LEDs

Internal Diagnostic LEDs

The server has internal fault LEDs for CPUs, DIMMs, and fan modules.

Figure 13: Internal Diagnostic LED Locations

Maintaining the Server

1

3Fan module fault LEDs (one on the top of each fan

module)

• Amber—Fan has a fault or is not fully seated.

DIMM fault LEDs (one behind each DIMM socket on the
motherboard)

These LEDs operate only when the server is in standby
power mode.

• Green—Fan is OK.

• Amber—DIMM has a fault.

• Off—DIMM is OK.

2

-CPU fault LEDs (one behind each CPU socket on the

motherboard).

These LEDs operate only when the server is in standby
power mode.

• Amber—CPU has a fault.

• Off—CPU is OK.

Cisco UCS C240 M5 Server Installation and Service Guide

38

Maintaining the Server

Preparing For Component Installation

This section includes information and tasks that help prepare the server for component installation.

Required Equipment For Service Procedures

The following tools and equipment are used to perform the procedures in this chapter:

T-30 Torx driver (supplied with replacement CPUs for heatsink removal)

•

#1 flat-head screwdriver (used during CPU or heatsink replacement)

•

#1 Phillips-head screwdriver (for M.2 SSD and intrusion switch replacement)

•

Electrostatic discharge (ESD) strap or other grounding equipment such as a grounded mat

•

Preparing For Component Installation

Shutting Down and Removing Power From the Server

The server can run in either of two power modes:

• Main power mode—Power is supplied to all server components and any operating system on your drives

can run.

• Standby power mode—Power is supplied only to the service processor and certain components. It is

safe for the operating system and data to remove power cords from the server in this mode.

Caution

Shutting Down Using the Power Button

Step 1

Check the color of the Power button/LED:

After a server is shut down to standby power, electric current is still present in the server. To completely
remove power, you must disconnect all power cords from the power supplies in the server, as directed in
the service procedures.

You can shut down the server by using the front-panel power button or the software management interfaces.

• Amber—The server is already in standby mode and you can safely remove power.

Step 2

• Green—The server is in main power mode and must be shut down before you can safely remove power.

Invoke either a graceful shutdown or a hard shutdown:

Caution

To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown of
the operating system.

• Graceful shutdown—Press and release the Power button. The operating system performs a graceful shutdown and

the server goes to standby mode, which is indicated by an amber Power button/LED.

Cisco UCS C240 M5 Server Installation and Service Guide

39

Shutting Down and Removing Power From the Server

• Emergency shutdown—Press and hold the Power button for 4 seconds to force the main power off and immediately

enter standby mode.

Maintaining the Server

Step 3

If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.

Shutting Down Using The Cisco IMC GUI

You must log in with user or admin privileges to perform this task.

Step 1
Step 2
Step 3
Step 4

Step 5

In the Navigation pane, click the Server tab.

On the Server tab, click Summary.

In the Actions area, click Power Off Server.

Click OK.
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.

If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.

Shutting Down Using The Cisco IMC CLI

You must log in with user or admin privileges to perform this task.

Step 1

Step 2

Step 3

At the server prompt, enter:

Example:

server# scope chassis

At the chassis prompt, enter:

Example:

server/chassis# power shutdown
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.

If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.

Cisco UCS C240 M5 Server Installation and Service Guide

40

Maintaining the Server

Shutting Down Using The Cisco UCS Manager Equipment Tab

You must log in with user or admin privileges to perform this task.

Removing the Server Top Cover

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6

Step 7

In the Navigation pane, click Equipment.

Expand Equipment > Rack Mounts > Servers.

Choose the server that you want to shut down.

In the Work pane, click the General tab.

In the Actions area, click Shutdown Server.

If a confirmation dialog displays, click Yes.
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.

If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.

Shutting Down Using The Cisco UCS Manager Service Profile

You must log in with user or admin privileges to perform this task.

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7

In the Navigation pane, click Servers.

Expand Servers > Service Profiles.

Expand the node for the organization that contains the service profile of the server that you are shutting down.

Choose the service profile of the server that you are shutting down.

In the Work pane, click the General tab.

In the Actions area, click Shutdown Server.

If a confirmation dialog displays, click Yes.
The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber
Power button/LED.

Step 8

If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the
power supplies in the server.

Removing the Server Top Cover

Step 1

Remove the top cover:

Cisco UCS C240 M5 Server Installation and Service Guide

41

Maintaining the Server

Removing the Server Top Cover

a) If the cover latch is locked, use a screwdriver to turn the lock 90-degrees counterclockwise to unlock it.
b) Lift on the end of the latch that has the green finger grip. The cover is pushed back to the open position as you lift

the latch.

c) Lift the top cover straight up from the server and set it aside.

Step 2

Replace the top cover:

a) With the latch in the fully open position, place the cover on top of the server about one-half inch (1.27 cm) behind

the lip of the front cover panel. The opening in the latch should fit over the peg that sticks up from the fan tray.

b) Press the cover latch down to the closed position. The cover is pushed forward to the closed position as you push

down the latch.

c) If desired, lock the latch by using a screwdriver to turn the lock 90-degrees clockwise.

Figure 14: Removing the Top Cover

Serial number label location3Cover latch1

Cover lock2

Cisco UCS C240 M5 Server Installation and Service Guide

42

Maintaining the Server

Serial Number Location

The serial number for the server is printed on a label on the top of the server, near the front. See Removing

the Server Top Cover, on page 41.

Hot Swap vs Hot Plug

Some components can be removed and replaced without shutting down and removing power from the server.
This type of replacement has two varieties: hot-swap and hot-plug.

• Hot-swap replacement—You do not have to shut down the component in the software or operating

system. This applies to the following components:

SAS/SATA hard drives

◦

Serial Number Location

SAS/SATA solid state drives

◦

Cooling fan modules

◦

Power supplies (when redundant as 1+1)

◦

• Hot-plug replacement—You must take the component offline before removing it for the following

component:

NVMe PCIe solid state drives

◦

Removing and Replacing Components

Warning

Caution

Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do
not operate the system unless all cards, faceplates, front covers, and rear covers are in place.

Statement 1029

When handling server components, handle them only by carrier edges and use an electrostatic discharge
(ESD) wrist-strap or other grounding device to avoid damage.

Cisco UCS C240 M5 Server Installation and Service Guide

43

Serviceable Component Locations

You can press the unit identification button on the front panel or rear panel to turn on a flashing, blue unit

Tip

identification LED on both the front and rear panels of the server. This button allows you to locate the
specific server that you are servicing when you go to the opposite side of the rack. You can also activate
these LEDs remotely by using the Cisco IMC interface.

This section describes how to install and replace server components.

Serviceable Component Locations

This topic shows the locations of the field-replaceable components and service-related items. The view in the
following figure shows the server with the top cover removed.

Figure 15: Cisco UCS C240 M5 Server, Serviceable Component Locations

Maintaining the Server

Rear-drive backplane assembly11Front-loading drive bays.1

Power supplies (hot-swappable when redundant as 1+1)12Cooling fan modules (six, hot-swappable)2

Cisco UCS C240 M5 Server Installation and Service Guide

44

Maintaining the Server

Serviceable Component Locations

3

13DIMM sockets on motherboard (up to 12 per CPU)

Not visible under air baffle in this view.

See DIMM Population Rules and Memory Performance

Guidelines , on page 70 for DIMM slot numbering.

Rear 2.5-inch drive bays:

•

All other C240 M5 PIDs support up to two drives:

•

When using a hardware-RAID controller card

◦

in the server, SAS/SATA drives or NVMe
SSDs are supported in the rear bays.

When using software RAID in the server, only

◦

NVMe SSDs are supported in the rear bays.

4

14CPUs and heatsinks (up to two)

Not visible under air baffle in this view.

15Supercap unit (RAID backup) mounting bracket5

Trusted platform module (TPM) socket on motherboard
(not visible in this view)

PCIe riser 2 (PCIe slots 4, 5, 6), with the following options:

• 2A—Slots 4 (x16), 5 (x16), and 6 (x8).

• 2B—Slots 4 (x8), 5 (x16), and 6 (x8); includes cable

connector for rear-loading NVMe SSDs.

• 2C—With slots 4 (x8), 5 (x8), and 6 (x8); includes

two cable connectors for rear-loading and
front-loading NVMe SSDs.

•

Micro-SD card socket on PCIe riser 116Internal, vertical USB 3.0 port on motherboard6

7

17Mini storage module socket

Supports either an SD card carrier with two SD card
slots; or an M.2 SSD carrier with two slots for either two

PCIe riser 1 (PCIe slot 1, 2, 3), with the following options:

• 1A—Slots 1 (x8), 2 (x16), 3 (x8); slot 2 requires

CPU2.

M.2 SATA or two M.2 NVMe SSDs.

• 1B—Slots 1 (x8), 2 (x8), 3 (x8); all slots supported

by CPU1

18Chassis intrusion switch (optional)8

Modular LOM (mLOM) card bay on chassis floor (x16
PCIe lane), not visible in this view

9

Cisco modular RAID controller PCIe slot (dedicated slot)19PCIe cable connectors for NVMe SSDs, only on these

PCIe riser 2 options:

2B: One connector for rear NVMe SSDs.

•

2C: One connector for rear NVMe SSDs plus one

•

connector for front-loading NVMe SSDs

•

RTC battery, vertical socket20Rear-drive fan module10

Cisco UCS C240 M5 Server Installation and Service Guide

45

Replacing Front-Loading SAS/SATA Drives

The Technical Specifications Sheets for all versions of this server, which include supported component part
numbers, are at Cisco UCS Servers Technical Specifications Sheets (scroll down to Technical Specifications).

Replacing Front-Loading SAS/SATA Drives

Maintaining the Server

Securing clips for GPU cards on air baffle21

Note

You do not have to shut down the server or drive to replace SAS/SATA hard drives or SSDs because they
are hot-swappable.

To replace rear-loading SAS/SATA drives, see #unique_71.

Front-Loading SAS/SATA Drive Population Guidelines

The server is orderable in four different versions, each with a different front panel/drive-backplane configuration.

• Cisco UCS C240 M5 (UCSC-C240-M5SX)—Small form-factor (SFF) drives, with 24-drive backplane.

◦ Front-loading drive bays 1—24 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

• ◦
◦

• Cisco UCS C240 M5 (UCSC-C240-M5S)—SFF drives, with 8-drive backplane and DVD drive option.

◦ Front-loading drive bays 1—8 support 2.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 2.5-inch NVMe SSDs.

◦

• Cisco UCS C240 M5 (UCSC-C240-M5L)—Large form-factor (LFF) drives, with 12-drive backplane.

◦ Front-loading drive bays 1—12 support 3.5-inch SAS/SATA drives.

Optionally, front-loading drive bays 1 and 2 support 3.5-inch NVMe SSDs.

◦

Cisco UCS C240 M5 Server Installation and Service Guide

46

Maintaining the Server

Replacing Front-Loading SAS/SATA Drives

Drive bay numbering is shown in the following figures.

Figure 16: Small Form-Factor Drive (24-Drive) Versions, Drive Bay Numbering

Figure 17: Small Form-Factor Drive (8-Drive) Version, Drive Bay Numbering

Figure 18: Large Form-Factor Drive (12-Drive) Version, Drive Bay Numbering

Observe these drive population guidelines for optimum performance:

When populating drives, add drives to the lowest-numbered bays first.

•

Note

For diagrams of which drive bays are controlled by particular controller cables on the
backplane, see Storage Controller Cable Connectors and Backplanes, on page 133.

Keep an empty drive blanking tray in any unused bays to ensure proper airflow.

•

You can mix SAS/SATA hard drives and SAS/SATA SSDs in the same server. However, you cannot

•

configure a logical volume (virtual drive) that contains a mix of hard drives and SSDs. That is, when
you create a logical volume, it must contain all SAS/SATA hard drives or all SAS/SATA SSDs.

4K Sector Format SAS/SATA Drives Considerations

You must boot 4K sector format drives in UEFI mode, not legacy mode. See the procedures in this

•

section.

Do not configure 4K sector format and 512-byte sector format drives as part of the same RAID volume.

•

Cisco UCS C240 M5 Server Installation and Service Guide

47

Replacing Front-Loading SAS/SATA Drives

Operating system support on 4K sector drives is as follows: Windows: Win2012 and Win2012R2; Linux:

•

RHEL 6.5, 6.6, 6.7, 7.0, 7.2; SLES 11 SP3, and SLES 12. ESXi/Vmware is not supported.

Setting Up UEFI Mode Booting in the BIOS Setup Utility

Maintaining the Server

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9

Enter the BIOS setup utility by pressing the F2 key when prompted during bootup.

Go to the Boot Options tab.

Set UEFI Boot Options to Enabled.

Under Boot Option Priorities, set your OS installation media (such as a virtual DVD) as your Boot Option #1.

Go to the Advanced tab.

Select LOM and PCIe Slot Configuration.

Set the PCIe Slot ID: HBA Option ROM to UEFI Only.

Press F10 to save changes and exit the BIOS setup utility. Allow the server to reboot.

After the OS installs, verify the installation:

a) Enter the BIOS setup utility by pressing the F2 key when prompted during bootup.
b) Go to the Boot Options tab.
c) Under Boot Option Priorities, verify that the OS you installed is listed as your Boot Option #1.

Setting Up UEFI Mode Booting in the Cisco IMC GUI

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Step 10
Step 11
Step 12

Use a web browser and the IP address of the server to log into the Cisco IMC GUI management interface.

Navigate to Server > BIOS.

Under Actions, click Configure BIOS.

In the Configure BIOS Parameters dialog, select the Advanced tab.

Go to the LOM and PCIe Slot Configuration section.

Set the PCIe Slot: HBA Option ROM to UEFI Only.

Click Save Changes. The dialog closes.

Under BIOS Properties, set Configured Boot Order to UEFI.

Under Actions, click Configure Boot Order.

In the Configure Boot Order dialog, click Add Local HDD.

In the Add Local HDD dialog, enter the information for the 4K sector format drive and make it first in the boot order.

Save changes and reboot the server. The changes you made will be visible after the system reboots.

Cisco UCS C240 M5 Server Installation and Service Guide

48

Maintaining the Server

Replacing a Front-Loading SAS/SATA Drive

Replacing Front-Loading SAS/SATA Drives

Step 1

Step 2

Note

You do not have to shut down the server or drive to replace SAS/SATA hard drives or SSDs because they
are hot-swappable.

Remove the drive that you are replacing or remove a blank drive tray from the bay:

a) Press the release button on the face of the drive tray.
b) Grasp and open the ejector lever and then pull the drive tray out of the slot.
c) If you are replacing an existing drive, remove the four drive-tray screws that secure the drive to the tray and then lift

the drive out of the tray.

Install a new drive:

a) Place a new drive in the empty drive tray and install the four drive-tray screws.
b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.

Cisco UCS C240 M5 Server Installation and Service Guide

49

Maintaining the Server

Replacing Front-Loading SAS/SATA Drives

c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.

Figure 19: Replacing a Drive in a Drive Tray

Drive tray screws (two on each side)3Ejector lever1

Drive removed from drive tray4Release button2

Cisco UCS C240 M5 Server Installation and Service Guide

50

Maintaining the Server

Replacing Rear-Loading SAS/SATA Drives

Replacing Rear-Loading SAS/SATA Drives

Note

You do not have to shut down the server or drive to replace SAS/SATA hard drives or SSDs because they
are hot-swappable.

Rear-Loading SAS/SATA Drive Population Guidelines

The rear drive bay support differs by server PID and which type of RAID controller is used in the server:

• UCSC-C240-M5SX—Small form-factor (SFF) drives, with 24-drive backplane.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

• ◦

• UCSC-C240-M5S—SFF drives, with 8-drive backplane and DVD drive option.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

• UCSC-C240-M5L—Large form-factor (LFF) drives, with 12-drive backplane.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

The rear drive bay numbering follows the front-drive bay numbering in each server version:

•

◦ 8-drive server—rear bays are numbered bays 9 and 10.

◦ 12-drive server—rear bays are numbered bays 13 and 14.

◦ 24-drive server—rear bays are numbered bays 25 and 26.

When populating drives, add drives to the lowest-numbered bays first.

•

Keep an empty drive blanking tray in any unused bays to ensure proper airflow.

•

You can mix SAS/SATA hard drives and SAS/SATA SSDs in the same server. However, you cannot

•

configure a logical volume (virtual drive) that contains a mix of hard drives and SSDs. That is, when
you create a logical volume, it must contain all SAS/SATA hard drives or all SAS/SATA SSDs.

Cisco UCS C240 M5 Server Installation and Service Guide

51

Replacing Rear-Loading SAS/SATA Drives

Replacing a Rear-Loading SAS/SATA Drive

Maintaining the Server

Step 1

Step 2

Note

You do not have to shut down the server or drive to replace SAS/SATA hard drives or SSDs because they
are hot-swappable.

Remove the drive that you are replacing or remove a blank drive tray from the bay:

a) Press the release button on the face of the drive tray.
b) Grasp and open the ejector lever and then pull the drive tray out of the slot.
c) If you are replacing an existing drive, remove the four drive-tray screws that secure the drive to the tray and then lift

the drive out of the tray.

Install a new drive:

a) Place a new drive in the empty drive tray and install the four drive-tray screws.
b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.

Cisco UCS C240 M5 Server Installation and Service Guide

52

Maintaining the Server

c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.

Figure 20: Replacing a Drive in a Drive Tray

Replacing Front-Loading NVMe SSDs

Replacing Front-Loading NVMe SSDs

This section is for replacing 2.5-inch or 3.5-inch form-factor NVMe solid-state drives (SSDs) in front-panel
drive bays.

Drive tray screws (two on each side)3Ejector lever1

Drive removed from drive tray4Release button2

Cisco UCS C240 M5 Server Installation and Service Guide

53

Replacing Front-Loading NVMe SSDs

To replace HHHL form-factor NVMe SSDs in the PCIe slots, see Replacing HHHL Form-Factor NVMe Solid

State Drives, on page 66.

Front-Loading NVMe SSD Population Guidelines

The front drive bay support for 2.5- or 3.5-inch NVMe SSDs differs by server PID:

• UCSC-C240-M5SX—Small form-factor (SFF) drives, with 24-drive backplane. Drive bays 1 and 2

support 2.5-inch NVMe SSDs.

•

• UCSC-C240-M5S—SFF drives, with 8-drive backplane and DVD drive option. Drive bays 1 and 2

support 2.5-inch NVMe SSDs.

• UCSC-C240-M5L—Large form-factor (LFF) drives, with 12-drive backplane. Drive bays 1 and 2 support

2.5-inch and 3.5-inch NVMe SSDs. If you use 2.5-inch NVMe SSDs, a size-converter drive tray
(UCS-LFF-SFF-SLED2) is required for this version of the server.

Maintaining the Server

Front-Loading NVME SSD Requirements and Restrictions

Observe these requirements:

The server must have two CPUs. PCIe riser 2C is not available in a single-CPU system. PCIe riser 2C

•

has connectors for the cable that connects to the front-panel drive backplane.

PCIe cable and PCIe riser 2C. This is the cable that carries the PCIe signal from the front-panel drive

•

backplane to PCIe riser 2C. These two items are kitted as follows:

For small form factor (SFF) versions of the server: CBL-NVME-C240SFF

◦

For large form factor (LFF) versions of the server: CBL-NVME-C240LFF

◦

Hot-plug support must be enabled in the system BIOS. If you ordered the system with NVMe drives,

•

hot-plug support is enabled at the factory.

Observe these restrictions:

NVMe 2.5- and 3.5-inch SSDs support booting only in UEFI mode. Legacy boot is not supported. For

•

instructions on setting up UEFI boot, see Setting Up UEFI Mode Booting in the BIOS Setup Utility,

on page 48 or Setting Up UEFI Mode Booting in the Cisco IMC GUI, on page 48.

You cannot control NVMe PCIe SSDs with a SAS RAID controller because NVMe SSDs interface with

•

the server via the PCIe bus.

You can combine NVMe 2.5- or 3.5-inch SSDs and HHHL form-factor SSDs in the same system, but

•

the same partner brand must be used. For example, two Intel NVMe SFF 2.5-inch SSDs and two HGST
HHHL form-factor SSDs is an invalid configuration. A valid configuration is two HGST NVMe SFF

2.5-inch SSDs and two HGST HHHL form-factor SSDs.

UEFI boot is supported in all supported operating systems. Hot-insertion and hot-removal are supported

•

in all supported operating systems except VMWare ESXi.

Cisco UCS C240 M5 Server Installation and Service Guide

54

Maintaining the Server

Enabling Hot-Plug Support in the System BIOS

Hot-plug (OS-informed hot-insertion and hot-removal) is disabled in the system BIOS by default.

If the system was ordered with NVMe PCIe SSDs, the setting was enabled at the factory. No action is

•

required.

If you are adding NVMe PCIe SSDs after-factory, you must enable hot-plug support in the BIOS. See

•

the following procedures.

Enabling Hot-Plug Support Using the BIOS Setup Utility

Replacing Front-Loading NVMe SSDs

Step 1
Step 2
Step 3
Step 4

Enter the BIOS setup utility by pressing the F2 key when prompted during bootup.

Navigate to Advanced > PCI Subsystem Settings > NVMe SSD Hot-Plug Support.

Set the value to Enabled.

Save your changes and exit the utility.

Enabling Hot-Plug Support Using the Cisco IMC GUI

Step 1
Step 2
Step 3
Step 4

Use a browser to log in to the Cisco IMC GUI for the server.

Navigate to Compute > BIOS > Advanced > PCI Configuration.

Set NVME SSD Hot-Plug Support to Enabled.

Save your changes.

Replacing a Front-Loading NVMe SSD

This topic describes how to replace 2.5- or 3.5-inch form-factor NVMe SSDs in the front-panel drive bays.

Step 1

Note

OS-surprise removal is not supported. OS-informed hot-insertion and hot-removal are supported on all
supported operating systems except VMware ESXi.

Note

OS-informed hot-insertion and hot-removal must be enabled in the system BIOS. See Enabling Hot-Plug

Support in the System BIOS, on page 55.

Remove an existing front-loading NVMe SSD:

Cisco UCS C240 M5 Server Installation and Service Guide

55

Replacing Front-Loading NVMe SSDs

a) Shut down the NVMe SSD to initiate an OS-informed removal. Use your operating system interface to shut down

the drive, and then observe the drive-tray LED:

• Green—The drive is in use and functioning properly. Do not remove.

• Green, blinking—the driver is unloading following a shutdown command. Do not remove.

• Off—The drive is not in use and can be safely removed.

b) Press the release button on the face of the drive tray.
c) Grasp and open the ejector lever and then pull the drive tray out of the slot.
d) Remove the four drive tray screws that secure the SSD to the tray and then lift the SSD out of the tray.

Note

Step 2

Install a new front-loading NVMe SSD:

a) Place a new SSD in the empty drive tray and install the four drive-tray screws.
b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.
c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.

Maintaining the Server

If this is the first time that front-loading NVMe SSDs are being installed in the server, you must install a PCIe
cable with PCIe riser 2C. See Installing Riser 2C Kit For Front-Loading NVMe SSDs, on page 57.

Step 3

Observe the drive-tray LED and wait until it returns to solid green before accessing the drive:

• Off—The drive is not in use.

• Green, blinking—the driver is initializing following hot-plug insertion.

• Green—The drive is in use and functioning properly.

Cisco UCS C240 M5 Server Installation and Service Guide

56

Maintaining the Server

Figure 21: Replacing a Drive in a Drive Tray

Replacing Front-Loading NVMe SSDs

Installing Riser 2C Kit For Front-Loading NVMe SSDs

The front-loading NVMe SSDs interface with the server via the PCIe bus. A PCIe cable connects the front-panel
drive backplane to PCIe riser 2C.

Cisco UCS C240 M5 Server Installation and Service Guide

Drive tray screws (two on each side)3Ejector lever1

Drive removed from drive tray4Release button2

57

Replacing Front-Loading NVMe SSDs

Maintaining the Server

Step 1
Step 2
Step 3
Step 4

Note

Only PCIe riser version 2C has a connector that supports front-loading NVMe SSDs. This riser 2C is
kitted with the required PCIe cable. For SFF versions of the server, use kit CBL-NVME-C240SFF; For
the LFF version of the server, use kit CBL-NVME-C24LFF.

If the server was ordered with front-loading NVMe SSDs, this kit was preinstalled at the factory. No

•

action is required.

If you are adding front-loading NVMe SSDs for the first time, you must order and install the kit as

•

described in the following procedure.

Remove the existing PCIe riser 2 version and replace it with PCIe riser 2C. See Replacing a PCIe Riser, on page 93.

Connect the two connectors on one end of the cable to the PCIe connectors on the drive backplane.

Route the cables through the chassis cable guides to the rear of the server as shown below.

Connect the other end of the cable to the "Front NVMe" connector on PCIe riser 2C.
In the following figure, the colored lines represent cabling paths:

The red line represents the cable path from riser 2C to the front-drive backplane.

•

The blue line represents the cable path from riser 2C to the optional rear-drive backplane.

•

Figure 22: PCIe Cabling From PCIe Riser 2 to Drive Backplanes

Cisco UCS C240 M5 Server Installation and Service Guide

58

Maintaining the Server

1

(on riser version 2C only)

Replacing Rear-Loading NVMe SSDs

This section is for replacing 2.5-inch form-factor NVMe solid-state drives (SSDs) in rear-panel drive bays.

This section contains the following topics:

Rear-Loading NVMe SSD Population Guidelines

Replacing Rear-Loading NVMe SSDs

Rear NVMe cable connector

2Front NVMe cable connector

(on riser version 2B, 2C, or 2D only)

The rear drive bay support differs by server PID and which type of RAID controller is used in the server for
non-NVMe drives:

• UCSC-C240-M5SX—Small form-factor (SFF) drives, with 24-drive backplane.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

• ◦

• UCSC-C240-M5S—SFF drives, with 8-drive backplane and DVD drive option.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

• UCSC-C240-M5L—Large form-factor (LFF) drives, with 12-drive backplane.

◦ Hardware RAID—Rear drive bays support SAS or NVMe drives

◦ Embedded software RAID—Rear drive bays support NVMe drives only.

The rear drive bay numbering follows the front-drive bay numbering in each server version:

•

◦ 8-drive server—rear bays are numbered bays 9 and 10.

◦ 12-drive server—rear bays are numbered bays 13 and 14.

◦ 24-drive server—rear bays are numbered bays 25 and 26.

When populating drives, add drives to the lowest-numbered bays first.

•

Keep an empty drive blanking tray in any unused bays to ensure proper airflow.

•

Cisco UCS C240 M5 Server Installation and Service Guide

59

Replacing Rear-Loading NVMe SSDs

Rear-Loading NVME SSD Requirements and Restrictions

Observe these requirements:

The server must have two CPUs. PCIe riser 2 is not available in a single-CPU system. PCIe riser 2B or

•

2C has the connector for the cable that connects to the rear drive backplane.

PCIe cable and PCIe riser 2B or 2C. This is the cable that carries the PCIe signal from the rear drive

•

backplane to PCIe riser 2B or 2C. These items are kitted as follows:

Kit for all server versions; includes rear backplane, fan, and cable: UCSC-RNVME-240M5

◦

PCIe cable only: CBL-NVME-C240RF

◦

Hot-plug support must be enabled in the system BIOS. If you ordered the system with NVMe drives,

•

hot-plug support is enabled at the factory.

Observe these restrictions:

NVMe SSDs support booting only in UEFI mode. Legacy boot is not supported. For instructions on

•

setting up UEFI boot, see Setting Up UEFI Mode Booting in the BIOS Setup Utility, on page 48 or

Setting Up UEFI Mode Booting in the Cisco IMC GUI, on page 48.

Maintaining the Server

You cannot control NVMe PCIe SSDs with a SAS RAID controller because NVMe SSDs interface with

•

the server via the PCIe bus.

You can combine NVMe 2.5-inch SSDs and HHHL form-factor SSDs in the same system, but the same

•

partner brand must be used. For example, two Intel NVMe SFF 2.5-inch SSDs and two HGST HHHL
form-factor SSDs is an invalid configuration. A valid configuration is two HGST NVMe SFF 2.5-inch
SSDs and two HGST HHHL form-factor SSDs.

UEFI boot is supported in all supported operating systems. Hot-insertion and hot-removal are supported

•

in all supported operating systems except VMWare ESXi.

Replacing a Rear-Loading NVMe SSD

This topic describes how to replace 2.5-inch form-factor NVMe SSDs in the rear-panel drive bays.

Note

Note

OS-surprise removal is not supported. OS-informed hot-insertion and hot-removal are supported on all
supported operating systems except VMware ESXi.

OS-informed hot-insertion and hot-removal must be enabled in the system BIOS. See Enabling Hot-Plug

Support in the System BIOS, on page 55.

Step 1

60

Remove an existing rear-loading NVMe SSD:

a) Shut down the NVMe SSD to initiate an OS-informed removal. Use your operating system interface to shut down

the drive, and then observe the drive-tray LED:

Cisco UCS C240 M5 Server Installation and Service Guide

Maintaining the Server

b) Press the release button on the face of the drive tray.
c) Grasp and open the ejector lever and then pull the drive tray out of the slot.
d) Remove the four drive tray screws that secure the SSD to the tray and then lift the SSD out of the tray.

Note

Step 2

Install a new front-loading NVMe SSD:

a) Place a new SSD in the empty drive tray and install the four drive-tray screws.
b) With the ejector lever on the drive tray open, insert the drive tray into the empty drive bay.
c) Push the tray into the slot until it touches the backplane, and then close the ejector lever to lock the drive in place.

Replacing Rear-Loading NVMe SSDs

Green—The drive is in use and functioning properly. Do not remove.•

• Green, blinking—the driver is unloading following a shutdown command. Do not remove.

• Off—The drive is not in use and can be safely removed.

If this is the first time that rear-loading NVMe SSDs are being installed in the server, you must install a PCIe
cable with PCIe riser 2B or 2C.

The server must also have an optional rear drive backplane (see Replacing a Rear-Loading Drive Backplane

Assembly, on page 64).

Step 3

Observe the drive-tray LED and wait until it returns to solid green before accessing the drive:

• Off—The drive is not in use.

• Green, blinking—the driver is initializing following hot-plug insertion.

• Green—The drive is in use and functioning properly.

Cisco UCS C240 M5 Server Installation and Service Guide

61

Replacing Rear-Loading NVMe SSDs

Figure 23: Replacing a Drive in a Drive Tray

Maintaining the Server

Installing Riser 2B or 2C Kit For Rear-Loading NVMe SSDs

The rear-loading NVMe SSDs interface with the server via the PCIe bus. A PCIe cable connects the rear drive
backplane to PCIe riser 2B or 2C.

Cisco UCS C240 M5 Server Installation and Service Guide

62

Drive tray screws (two on each side)3Ejector lever1

Drive removed from drive tray4Release button2

Maintaining the Server

Replacing Rear-Loading NVMe SSDs

Step 1

Step 2
Step 3
Step 4

Note

PCIe riser versions 2B and 2C have a connector that supports rear-loading NVMe SSDs. Riser 2C is kitted
with the required PCIe cable. For all versions of the server, use kit UCSC-RNVME-C240M5; You can
also order the cable only: CBL-NVME-C24LRF. (Riser 2D is not orderable separately.)

If the server was ordered with rear-loading NVMe SSDs, this kit was preinstalled at the factory. No

•

action is required.

If you are adding rear-loading NVMe SSDs for the first time, you must order and install the kit as

•

described in the following procedure.

If necessary, remove the existing PCIe riser 2 version and replace it with PCIe riser 2B or 2C. (Riser 2D is not orderable
separately.) See Replacing a PCIe Riser, on page 93.

Connect the two connectors on one end of the cable to the PCIe connectors on the rear drive backplane.

Route the cables to PCIe riser 2B or 2C.

Connect the two connectors on the other end of the cable to the "Rear NVMe" connector on PCIe riser 2Bor 2C.
In the following figure, the colored lines represent cabling paths:

The blue line represents the cable path from riser 2B or 2C to the optional rear drive backplane.

•

The red line represents the cable path from riser 2C (only) to the front drive backplane.

•

Figure 24: PCIe Cabling From PCIe Riser 2 to Drive Backplanes

Cisco UCS C240 M5 Server Installation and Service Guide

63

Replacing a Rear-Loading Drive Backplane Assembly

Rear NVMe cable connector

1

(on riser version 2C only)

2Front NVMe cable connector

(on riser version 2B or 2C)

Replacing a Rear-Loading Drive Backplane Assembly

Although all server versions have the rear-drive cage installed as part of the chassis at the factory, you can
use it only if you have ordered or installed a rear backplane.

Maintaining the Server

Step 1

Step 2

Step 3
Step 4

Step 5

Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

Remove any existing rear drive backplane assembly:

a) Remove any drives from the existing rear drive backplane and set them aside.
b) Remove the fan from the rear backplane assembly. Pinch the green finger-grips on the top of the fan and then lift

straight up.
c) Disconnect the CONN REAR cable from the backplane.
d) Lift the hinged rear backplane retainer on the top of the rear backplane cage. This metal retainer is marked blue.
e) Grasp the black plastic fingergrip on the rear backplane and lift the backplane straight up to remove it from the

motherboard socket and cage.

Install a new rear backplane or kit:

a) Grasp the new rear backplane by the black plastic fingergrip on its frame.
b) Lower the new backplane into the guide channels on the cage until its edge connector touches the socket on the

motherboard.
c) Push down on the top of the backplane until its securing clips click and the edge connector is firmly seated in the

motherboard socket.
d) Close the hinged rear backplane retainer on the top of the cage.
e) Connect the CONN REAR cable from your SAS controller or PCIe riser to the socket on the backplane.
f) Install the rear backplane fan. With the arrows on top of the fan pointing toward the rear, lower the fan's connector

over the socket and align the guides on the fan into the channels that are on the power supply cage.
g) Push down on the top of the fan until it clicks.
h) Install drives to the rear bays.

Step 6
Step 7

64

Replace the top cover to the server.

Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Cisco UCS C240 M5 Server Installation and Service Guide

Maintaining the Server

Replacing a Rear-Drive Backplane Fan

The fan on the rear-loading drive backplane can be replaced separately from the backplane assembly.

Replacing a Rear-Drive Backplane Fan

Step 1

Step 2

Step 3

Step 4
Step 5
Step 6
Step 7
Step 8

Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

Caution

If there are drives installed in the rear drive backplane, do not operate the server with the rear drive fan
removed.

Grasp the finger-grips on the top of the fan and pull straight up to disconnect it from its socket on the assembly.

Align the new fan over the socket on the assembly. The arrow on the fan must point toward the rear of the server.

Slide the fan down and press on its top until it is firmly connected to the socket on the assembly.

Replace the top cover to the server.

Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 25: Rear Drive Backplane Fan

Cisco UCS C240 M5 Server Installation and Service Guide

65

Replacing HHHL Form-Factor NVMe Solid State Drives

-Rear fan location on rear drive cage1

Replacing HHHL Form-Factor NVMe Solid State Drives

This section is for replacing half-height, half-length (HHHL) form-factor NVMe SSDs in the PCIe risers.

HHHL SSD Population Guidelines

Observe the following population guidelines when installing HHHL form-factor NVMe SSDs:

• Two-CPU systems—You can populate up to 6 HHHL form-factor SSDs, using PCIe slots 1 – 6.

Maintaining the Server

• One-CPU systems—In a single-CPU system, PCIe riser 2 is not available. Therefore, the maximum

number of HHHL form-factor SSDs you can populate is 3, using PCIe slots 1 - 3.

HHHL Form-Factor NVME SSD Requirements and Restrictions

Observe these requirements:

All versions of the server support HHHL form-factor NVMe SSDs.

•

Observe these restrictions:

You cannot boot from an HHHL form-factor NVMe SSD.

•

You cannot control HHHL NVMe SSDs with a SAS RAID controller because NVMe SSDs interface

•

with the server via the PCIe bus.

You can combine NVMe SFF 2.5- or 3.5-inch SSDs and HHHL form-factor SSDs in the same system,

•

but the same partner brand must be used. For example, two Intel NVMe SFF 2.5-inch SSDs and two
HGST HHHL form-factor SSDs is an invalid configuration. A valid configuration is two HGST NVMe

SFF 2.5-inch SSDs and two HGST HHHL form-factor SSDs.

Replacing an HHHL Form-Factor NVMe SSD

Step 1

66

In a single-CPU server, PCIe riser 2 (PCIe slot 2) is not available.Note

Remove an existing HHHL form-factor NVME SSD (or a blank filler panel) from the PCIe riser:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Cisco UCS C240 M5 Server Installation and Service Guide

Maintaining the Server

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

d) Use two hands to flip up and grasp the blue riser handle and the blue fingergrip area on the front edge of the riser,

and then lift straight up.

e) On the bottom of the riser, push the release latch that holds the securing plate, and then swing the hinged securing

plate open.
f) Open the hinged card-tab retainer that secures the rear-panel tab of the card.
g) Pull evenly on both ends of the HHHL form-factor NVME SSD to remove it from the socket on the PCIe riser.

If the riser has no SSD, remove the blanking panel from the rear opening of the riser.

Replacing HHHL Form-Factor NVMe Solid State Drives

If you cannot safely view and access the component, remove the server from the
rack.

Step 2

Install a new HHHL form-factor NVME SSD:

a) Open the hinged, plastic card-tab retainer.
b) Align the new SSD with the empty socket on the PCIe riser.
c) Push down evenly on both ends of the card until it is fully seated in the socket.
d)

Ensure that the SSD’s rear panel tab sits flat against the riser rear-panel opening and then close the hinged card-tab

retainer over the rear-panel tab.
e) Close the hinged securing plate.
f) Position the PCIe riser over its socket on the motherboard and over the chassis alignment channels.
g) Carefully push down on both ends of the PCIe riser to fully engage its connector with the sockets on the motherboard.
h) Replace the top cover to the server.

Cisco UCS C240 M5 Server Installation and Service Guide

67

Maintaining the Server

Replacing Fan Modules

i) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 26: PCIe Riser Card Securing Mechanisms

Replacing Fan Modules

The six fan modules in the server are numbered as shown in Serviceable Component Locations, on page 7.

There is a fault LED on the top of each fan module. This LED lights green when the fan is correctly seated

Tip

and is operating OK. The LED lights amber when the fan has a fault or is not correctly seated.

Cisco UCS C240 M5 Server Installation and Service Guide

68

Hinged card-tab retainer3Release latch on hinged securing plate1

-Hinged securing plate2

Maintaining the Server

Replacing Fan Modules

Step 1

Step 2

Caution

You do not have to shut down or remove power from the server to replace fan modules because they are
hot- swappable. However, to maintain proper cooling, do not operate the server for more than one minute
with any fan module removed.

Remove an existing fan module:

a) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

b) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
c) Grasp and squeeze the fan module release latches on its top. Lift straight up to disengage its connector from the

motherboard.

Install a new fan module:

a) Set the new fan module in place. The arrow printed on the top of the fan module should point toward the rear of the

server.
b) Press down gently on the fan module to fully engage it with the connector on the motherboard.
c) Replace the top cover to the server.
d) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 27: Top View of Fan Module

Fan module fault LED2Fan module release latches1

Cisco UCS C240 M5 Server Installation and Service Guide

69

Replacing Memory DIMMs

Replacing Memory DIMMs

DIMMs and their sockets are fragile and must be handled with care to avoid damage during installation.Caution

Maintaining the Server

Caution

Cisco does not support third-party DIMMs. Using non-Cisco DIMMs in the server might result in system
problems or damage to the motherboard.

Note

To ensure the best server performance, it is important that you are familiar with memory performance
guidelines and population rules before you install or replace DIMMs.

DIMM Population Rules and Memory Performance Guidelines

This topic describes the rules and guidelines for maximum memory performance.

DIMM Slot Numbering

The following figure shows the numbering of the DIMM slots on the motherboard.

Figure 28: DIMM Slot Numbering

DIMM Population Rules

Observe the following guidelines when installing or replacing DIMMs for maximum performance:

Each CPU supports six memory channels.

•

CPU 1 supports channels A, B, C, D, E, F.

◦

CPU 2 supports channels G, H, J, K, L, M.

◦

Cisco UCS C240 M5 Server Installation and Service Guide

70

Maintaining the Server

Replacing Memory DIMMs

Each channel has two DIMM sockets (for example, channel A = slots A1, A2).

•

A channel can operate with one or two DIMMs installed.

◦

If a channel has only one DIMM, populate slot 1 first (the blue slot).

◦

When both CPUs are installed, populate the DIMM sockets of each CPU identically.

•

Fill blue #1 slots in the channels first: A1, G1, B1, H1, C1, J1, D1, K1, E1, L1, F1, M1

◦

Fill black #2 slots in the channels second: A2, G2, B2, H2, C2, J2, D2, K2, E2, L2, F2, M2

◦

Any DIMM installed in a DIMM socket for which the CPU is absent is not recognized. In a single-CPU

•

configuration, populate the channels for CPU1 only (A, B, C, D, E, F).

The maximum combined memory allowed in the 12 DIMM slots controlled by any one CPU is 768 GB.

•

To populate the 12 DIMM slots with more than 768 GB of combined memory, you must use a
high-memory CPU that has a PID that ends with an "M", for example, UCS-CPU-6134M.

Memory mirroring reduces the amount of memory available by 50 percent because only one of the two

•

populated channels provides data. When memory mirroring is enabled, you must install DIMMs in even
numbers of channels.

The NVIDIA Tesla P-Series GPU can support more than 1 TB of memory in the server. All other

•

NVIDIA GPUs can support only 1 TB or less of memory in the server. Therefore, do not install DIMMs
totalling more than 1 TB capacity when using an NVIDIA GPU card other than P-Series in this server.

Observe the DIMM mixing rules shown in the following table.

•

Table 4: DIMM Mixing Rules

DIMMs in the Same BankDIMMs in the Same ChannelDIMM Parameter

DIMM Capacity

For example, 8GB, 16GB, 32GB,
64GB, 128GB

You can mix different capacity
DIMMs in the same channel (for
example, A1, A2).

You cannot mix DIMM
capacities in a bank (for example
A1, B1). Pairs of DIMMs must
be identical (same PID and
revision).

DIMM speed

For example, 2666 GHz

You can mix speeds, but DIMMs
will run at the speed of the
slowest DIMMs/CPUs installed
in the channel.

You cannot mix DIMM speeds
in a bank (for example A1, B1).
Pairs of DIMMs must be
identical (same PID and
revision).

DIMM type

RDIMMs or LRDIMMs

You cannot mix DIMM types in
a channel.

You cannot mix DIMM types in
a bank.

Memory Mirroring

The CPUs in the server support memory mirroring only when an even number of channels are populated with
DIMMs. If one or three channels are populated with DIMMs, memory mirroring is automatically disabled.

Cisco UCS C240 M5 Server Installation and Service Guide

71

Replacing CPUs and Heatsinks

Memory mirroring reduces the amount of memory available by 50 percent because only one of the two
populated channels provides data. The second, duplicate channel provides redundancy.

Replacing DIMMs

Identifying a Faulty DIMM

Each DIMM socket has a corresponding DIMM fault LED, directly in front of the DIMM socket. See Internal

Diagnostic LEDs, on page 38 for the locations of these LEDs. When the server is in standby power mode,

these LEDs light amber to indicate a faulty DIMM.

Maintaining the Server

Step 1

Step 2

Remove an existing DIMM:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
d) Remove the air baffle that covers the front ends of the DIMM slots to provide clearance.
e) Locate the DIMM that you are removing, and then open the ejector levers at each end of its DIMM slot.

Install a new DIMM:

Note

a) Align the new DIMM with the empty slot on the motherboard. Use the alignment feature in the DIMM slot to correctly

orient the DIMM.

b) Push down evenly on the top corners of the DIMM until it is fully seated and the ejector levers on both ends lock

into place.

c) Replace the top cover to the server.
d) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

If you cannot safely view and access the component, remove the server from the
rack.

Before installing DIMMs, see the memory population rules for this server: DIMM Population Rules and Memory

Performance Guidelines , on page 70.

Replacing CPUs and Heatsinks

This section contains the following topics:

CPU Configuration Rules, on page 73

•

Tools Required For CPU Replacement, on page 73

•

Replacing a CPU and Heatsink, on page 73

•

Additional CPU-Related Parts to Order with RMA Replacement Motherboards, on page 80

•

Cisco UCS C240 M5 Server Installation and Service Guide

72

Maintaining the Server

CPU Configuration Rules

This server has two CPU sockets on the motherboard. Each CPU supports six DIMM channels (12 DIMM
slots). See DIMM Population Rules and Memory Performance Guidelines , on page 70.

The server can operate with one CPU or two identical CPUs installed.

•

The minimum configuration is that the server must have at least CPU 1 installed. Install CPU 1 first,

•

and then CPU 2.

The maximum combined memory allowed in the 12 DIMM slots controlled by any one CPU is 768 GB.

•

To populate the 12 DIMM slots with more than 768 GB of combined memory, you must use a
high-memory CPU that has a PID that ends with an "M", for example, UCS-CPU-6134M.

The following restrictions apply when using a single-CPU configuration:

•

Replacing CPUs and Heatsinks

The maximum number of DIMMs is 12 (only CPU 1 channels A, B, C, D, E, F).

◦

PCIe riser 2 (slots 4, 5, 6) is unavailable.

◦

You must use PCIe riser 1B (UCSC-PCI-1B-C240M5) to have support for all three slots (PCIe 1,

◦

2, 3). In PCIe riser 1 (UCSC-PCI-1-C240M5), slot 3 is unavailable because it is controlled by CPU

2.

Front- and rear-loading NVMe drives are unavailable (they require PCIe riser 2B or 2C).

◦

Tools Required For CPU Replacement

You need the following tools and equipment for this procedure:

• T-30 Torx driver—Supplied with replacement CPU.

• #1 flat-head screwdriver—Supplied with replacement CPU.

• CPU assembly tool—Supplied with replacement CPU. Orderable separately as Cisco PID UCS-CPUAT=.

• Heatsink cleaning kit—Supplied with replacement CPU. Orderable separately as Cisco PID

UCSX-HSCK=.

• Thermal interface material (TIM)—Syringe supplied with replacement CPU. Use only if you are reusing

your existing heatsink (new heatsinks have a pre-applied pad of TIM). Orderable separately as Cisco
PID UCS-CPU-TIM=.

See also Additional CPU-Related Parts to Order with RMA Replacement Motherboards, on page 80.

Replacing a CPU and Heatsink

Caution

CPUs and their sockets are fragile and must be handled with extreme care to avoid damaging pins. The
CPUs must be installed with heatsinks and thermal interface material to ensure cooling. Failure to install
a CPU correctly might result in damage to the server.

Cisco UCS C240 M5 Server Installation and Service Guide

73

Replacing CPUs and Heatsinks

An instructive video is available for this procedure: CPU and Heatsink Replacement in Cisco UCS M5 Servers

Maintaining the Server

Step 1

Remove the existing CPU/heatsink assembly from the server:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
d) Use the T-30 Torx driver that is supplied with the replacement CPU to loosen the four captive nuts that secure the

assembly to the motherboard standoffs.

Note

Alternate loosening the heatsink nuts evenly so that the heatsink remains level as it is raised. Loosen the
heatsink nuts in the order shown on the heatsink label: 4, 3, 2, 1.

e) Lift straight up on the CPU/heatsink assembly and set it heatsink-down on an antistatic surface.

Figure 29: Removing the CPU/Heatsink Assembly

Cisco UCS C240 M5 Server Installation and Service Guide

74

Maintaining the Server

Replacing CPUs and Heatsinks

CPU socket on motherboard4Heatsink1

T-30 Torx driver5Heatsink captive nuts (two on each side)2

-CPU carrier (below heatsink in this view)3

Step 2

Separate the heatsink from the CPU assembly (the CPU assembly includes the CPU and the plastic CPU carrier):

a) Place the heatsink with CPU assembly so that it is oriented upside-down.

Note the thermal-interface material (TIM) breaker location. TIM BREAKER is stamped on the CPU carrier next to

a small slot.

Figure 30: Separating the CPU Assembly From the Heatsink

CPU-carrier inner-latch nearest to the TIM breaker

4CPU carrier1

slot

#1 flat-head screwdriver inserted into TIM breaker

5CPU2

slot

Cisco UCS C240 M5 Server Installation and Service Guide

75

Maintaining the Server

Replacing CPUs and Heatsinks

-TIM BREAKER slot in CPU carrier3

b) Pinch inward on the CPU-carrier clip that is nearest the TIM breaker slot and then push up to disengage the clip from

its slot in the heatsink corner.

c) Insert the blade of a #1 flat-head screwdriver into the slot marked TIM BREAKER.

Note

In the following step, do not pry on the CPU surface. Use gentle rotation to lift on the plastic surface of the
CPU carrier at the TIM breaker slot. Use caution to avoid damaging the heatsink surface.

d) Gently rotate the screwdriver to lift up on the CPU until the TIM on the heatsink separates from the CPU.

Note

Do not allow the screwdriver tip to touch or damage the green CPU
substrate.

e) Pinch the CPU-carrier clip at the corner opposite the TIM breaker and push up to disengage the clip from its slot in

the heatsink corner.

f) On the remaining two corners of the CPU carrier, gently pry outward on the outer-latches and then lift the

CPU-assembly from the heatsink.

Note

Handle the CPU-assembly by the plastic carrier only. Do not touch the CPU surface. Do not separate the
CPU from the plastic carrier.

Step 3

The new CPU assembly is shipped on a CPU assembly tool. Take the new CPU assembly and CPU assembly tool out
of the carton.
If the CPU assembly and CPU assembly tool become separated, note the alignment features for correct orientation. The
pin 1 triangle on the CPU carrier must be aligned with the angled corner on the CPU assembly tool.

Cisco UCS C240 M5 Server Installation and Service Guide

76

Maintaining the Server

Replacing CPUs and Heatsinks

Caution

CPUs and their sockets are fragile and must be handled with extreme care to avoid damaging
pins.

Figure 31: CPU Assembly Tool, CPU Assembly, and Heatsink Alignment Features

Step 4

Apply new TIM to the heatsink:

Angled corner on heatsink (pin 1 alignment feature)4CPU assembly tool1

Triangle cut into plastic carrier (pin 1 alignment

5CPU assembly (CPU in plastic carrier frame)2

feature)

Angled corner on CPU assembly tool (pin 1

6Heatsink3

alignment feature)

Cisco UCS C240 M5 Server Installation and Service Guide

77

Maintaining the Server

Replacing CPUs and Heatsinks

The heatsink must have new TIM on the heatsink-to-CPU surface to ensure proper cooling and performance.Note

If you are installing a new heatsink, it is shipped with a pre-applied pad of TIM. Go to step 5.

•

If you are reusing a heatsink, you must remove the old TIM from the heatsink and then apply new TIM to the CPU

•

surface from the supplied syringe. Continue with step a below.

a) Apply the cleaning solution that is included with the heatsink cleaning kit (UCSX-HSCK=) to the old TIM on the

heatsink and let it soak for a least 15 seconds.

b) Wipe all of the TIM off the heatsink using the soft cloth that is included with the heatsink cleaning kit. Be careful to

avoid scratching the heatsink surface.

c) Using the syringe of TIM provided with the new CPU (UCS-CPU-TIM=), apply 4 cubic centimeters of thermal

interface material to the top of the CPU. Use the pattern shown below to ensure even coverage.

Figure 32: Thermal Interface Material Application Pattern

Step 5

Step 6

Note

Use only the correct heatsink for your CPUs to ensure proper cooling. There are two different heatsinks:
UCSC-HS-C240M5 for standard-performance CPUs 150 W and less; UCSC-HS2-C240M5 for high-performance

CPUs above 150 W. Note the wattage described on the heatsink label.
With the CPU assembly on the CPU assembly tool, set the heatsink onto the CPU assembly. Note the Pin 1 alignment
features for correct orientation. Push down gently until you hear the corner clips of the CPU carrier click onto the heatsink
corners.

Caution

In the following step, use extreme care to avoid touching or damaging the CPU contacts or the CPU socket
pins.

Install the CPU/heatsink assembly to the server:

a) Lift the heatsink with attached CPU assembly from the CPU assembly tool.
b) Align the assembly over the CPU socket on the motherboard.

Cisco UCS C240 M5 Server Installation and Service Guide

78

Maintaining the Server

Note the alignment features. The pin 1 angled corner on the heatsink must align with the pin 1 angled corner on the
CPU socket. The CPU-socket posts must align with the guide-holes in the assembly.

Figure 33: Installing the Heatsink/CPU Assembly to the CPU Socket

Replacing CPUs and Heatsinks

Angled corner on heatsink (pin 1 alignment feature)4Guide hole in assembly (two)1

Angled corner on socket (pin 1 alignment feature)5CPU socket alignment post (two)2

-CPU socket leaf spring3

c) Set the heatsink with CPU assembly down onto the CPU socket.
d) Use the T-30 Torx driver that is supplied with the replacement CPU to tighten the four captive nuts that secure the

heatsink to the motherboard standoffs.

Cisco UCS C240 M5 Server Installation and Service Guide

79

Replacing a Mini-Storage Module

Maintaining the Server

Note

e) Replace the top cover to the server.
f) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Alternate tightening the heatsink nuts evenly so that the heatsink remains level while it is lowered. Tighten
the heatsink nuts in the order shown on the heatsink label: 1, 2, 3, 4. The captive nuts must be fully tightened
so that the leaf springs on the CPU socket lie flat.

Additional CPU-Related Parts to Order with RMA Replacement Motherboards

When a return material authorization (RMA) of the motherboard or CPU is done on a Cisco UCS C-Series
server, additional parts might not be included with the CPU or motherboard spare bill of materials (BOM).
The TAC engineer might need to add the additional parts to the RMA to help ensure a successful replacement.

• Scenario 1—You are reusing the existing heatsinks:

Heat sink cleaning kit (UCSX-HSCK=)

◦

Thermal interface material (TIM) kit for M5 servers (UCS-CPU-TIM=)

◦

• Scenario 2—You are replacing the existing heatsinks:

Caution

Use only the correct heatsink for your CPUs to ensure proper cooling. There are two
different heatsinks: UCSC-HS-C240M5= for CPUs 150 W and less;
UCSC-HS2-C240M5= for CPUs above 150 W.

Heat sink: UCSC-HS-C240M5= for CPUs 150 W and less; UCSC-HS2-C240M5= for CPUs above

◦

150 W

Heat sink cleaning kit (UCSX-HSCK=)

◦

• Scenario 3—You have a damaged CPU carrier

CPU carrier (UCS-M5-CPU-CAR=)

◦

A CPU heat sink cleaning kit is good for up to four CPU and heat sink cleanings. The cleaning kit contains
two bottles of solution, one to clean the CPU and heat sink of old TIM and the other to prepare the surface of
the heat sink.

New heat sink spares come with a pre-applied pad of TIM. It is important to clean any old TIM off of the
CPU surface prior to installing the heat sinks. Therefore, even when you are ordering new heat sinks, you
must order the heat sink cleaning kit.

Replacing a Mini-Storage Module

The mini-storage module plugs into a motherboard socket to provide additional internal storage. The module
is available in two different versions:

• SD card carrier—provides two SD card sockets.

Cisco UCS C240 M5 Server Installation and Service Guide

80

Maintaining the Server

• M.2 SSD Carrier—provides two M.2 form-factor SSD sockets. These M.2 SSDs can be either two SATA

SSDs or two NVMe SSDs (no mixing).

Replacing a Mini-Storage Module Carrier

This topic describes how to remove and replace a mini-storage module carrier. The carrier has one media
socket on its top and one socket on its underside. Use the following procedure for any type of mini-storage
module carrier (SD card or M.2 SSD).

Replacing a Mini-Storage Module

Step 1

Step 2

Step 3
Step 4

Step 5

Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

Remove a carrier from its socket:

a) Locate the mini-storage module carrier in its socket just in front of power supply 1.
b) Push outward on the securing clips that holds each end of the carrier.
c) Lift both ends of the carrier to disengage it from the socket on the motherboard.
d) Set the carrier on an anti-static surface.

Install a carrier to its socket:

a) Position carrier over socket, with the carrier's connector facing down. Two alignment pegs must match with two

holes on the carrier.

b) Gently push down the socket end of the carrier so that the two pegs go through the two holes on the carrier.

Cisco UCS C240 M5 Server Installation and Service Guide

81

Replacing a Mini-Storage Module

c) Push down on the carrier so that the securing clips click over it at both ends.

Maintaining the Server

Step 6
Step 7

Replace the top cover to the server.

Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 34: Mini-Storage Module Carrier Socket

Securing clips3Location of socket on motherboard1

-Alignment pegs2

Replacing an SD Card in a Mini-Storage Carrier For SD

This topic describes how to remove and replace an SD card in a mini-storage carrier for SD (PID
UCS-MSTOR-SD). The carrier has one SD card socket on its top and one socket on its underside.

Population Rules For Mini-Storage SD Cards

You can use one or two SD cards in the carrier.

•

Dual SD cards can be configured in a RAID 1 array through the Cisco IMC interface.

•

Cisco UCS C240 M5 Server Installation and Service Guide

82

Maintaining the Server

Replacing a Mini-Storage Module

SD socket 1 is on the top side of the carrier; SD socket 2 is on the underside of the carrier (the same side

•

as the carrier's motherboard connector).

Step 1

Power off the server and then remove the mini-storage module carrier from the server as described in Replacing a

Mini-Storage Module Carrier, on page 81.

Step 2

Remove an SD card:

a) Push on the top of the SD card, and then release it to allow it to spring out from the socket.
b) Grasp and remove the SD card from the socket.

Step 3

Install a new SD card:

a) Insert the new SD card into the socket with its label side facing up (away from the carrier).
b) Press on the top of the SD card until it clicks in the socket and stays in place.

Step 4

Install the mini-storage module carrier back into the server and then power it on as described in Replacing a Mini-Storage

Module Carrier, on page 81.

Replacing an M.2 SSD in a Mini-Storage Carrier For M.2

This topic describes how to remove and replace an M.2 SATA or NVMe SSD in a mini-storage carrier for
M.2 (PID UCS-MSTOR-M2). The carrier has one M.2 SSD socket on its top and one socket on its underside.

Population Rules For Mini-Storage M.2 SSDs

Both M.2 SSDs must be either SATA or NVMe; do not mix types in the carrier.

•

You can use one or two M.2 SSDs in the carrier.

•

Step 1

Step 2

Step 3

M.2 socket 1 is on the top side of the carrier; M.2 socket 2 is on the underside of the carrier (the same

•

side as the carrier's motherboard connector).

Dual SATA M.2 SSDs can be configured in a RAID 1 array through the BIOS Setup Utility's embedded

•

SATA RAID interface. See Embedded SATA RAID Controller, on page 137.

Power off the server and then remove the mini-storage module carrier from the server as described in Replacing a

Mini-Storage Module Carrier, on page 81.

Remove an M.2 SSD:

a) Use a #1 Phillips-head screwdriver to remove the single screw that secures the M.2 SSD to the carrier.
b) Remove the M.2 SSD from its socket on the carrier.

Install a new M.2 SSD:

a) Insert the new M.2 SSD connector-end into the socket on the carrier with its label side facing up.
b) Press the M.2 SSD flat against the carrier.

Cisco UCS C240 M5 Server Installation and Service Guide

83

Replacing a Micro SD Card

c) Install the single screw that secures the end of the M.2 SSD to the carrier.

Maintaining the Server

Step 4

Install the mini-storage module carrier back into the server and then power it on as described in Replacing a Mini-Storage

Module Carrier, on page 81.

Replacing a Micro SD Card

There is one socket for a Micro SD card on the top of PCIe riser 1.

To avoid data loss, we do not recommend that you hot-swap the Micro SD card while it is operating, as
indicated by its activity LED turning amber. The activity LED turns amber when the Micro SD card is
updating or deleting.

on page 39.

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

card, then push down and release the Micro SD card to make it spring up.

Step 1

Caution

Remove an existing Micro SD card:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
d) Locate the Micro SD card. The socket is on the top of PCIe riser 1, under a plastic cover.
e) Use your fingertip to push the retainer on the plastic socket cover open far enough to provide access to the Micro SD

f) Grasp the Micro SD card and lift it from the socket.

Step 2

84

Install a new Micro SD card:

a) While holding the retainer on the plastic cover open with your fingertip, align the new Micro SD card with the socket.
b) Gently push down on the card until it clicks and locks in place in the socket.
c) Replace the top cover to the server.

Cisco UCS C240 M5 Server Installation and Service Guide

Maintaining the Server

d) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 35: Location of Internal Micro SD Card Socket

Replacing an Internal USB Drive

1

PCIe riser 1

Replacing an Internal USB Drive

This section includes procedures for installing a USB drive and for enabling or disabling the internal USB
port.

Replacing a USB Drive

Caution

We do not recommend that you hot-swap the internal USB drive while the server is powered on because
of the potential for data loss.

Plastic retainer (push aside to access socket)3Location of Micro SD card socket on the top of

Micro SD activity LED4Micro SD card socket under plastic retainer2

Step 1

Remove an existing internal USB drive:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Cisco UCS C240 M5 Server Installation and Service Guide

85

Maintaining the Server

Replacing an Internal USB Drive

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
d) Locate the USB socket on the motherboard, in front of the power supplies.
e) Grasp the USB drive and pull it vertically to free it from the socket.

Step 2

Install a new internal USB drive:

a) Align the USB drive with the socket.
b) Push the USB drive vertically to fully engage it with the socket.
c) Replace the top cover to the server.
d) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 36: Location of Internal USB Port <ILLO PENDING>

-Location of vertical USB socket on motherboard1

Cisco UCS C240 M5 Server Installation and Service Guide

86

Maintaining the Server

Enabling or Disabling the Internal USB Port

The factory default is that all USB ports on the server are enabled. However, the internal USB port can be
enabled or disabled in the server BIOS.

Replacing the RTC Battery

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6

Enter the BIOS Setup Utility by pressing the F2 key when prompted during bootup.

Navigate to the Advanced tab.

On the Advanced tab, select USB Configuration.

On the USB Configuration page, select USB Ports Configuration.

Scroll to USB Port: Internal, press Enter, and then choose either Enabled or Disabled from the dialog box.

Press F10 to save and exit the utility.

Replacing the RTC Battery

Warning

There is danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same
or equivalent type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.

[Statement 1015]

The real-time clock (RTC) battery retains system settings when the server is disconnected from power. The
battery type is CR2032. Cisco supports the industry-standard CR2032 battery, which can be ordered from
Cisco (PID N20-MBLIBATT) or purchased from most electronic stores.

Step 1

Step 2

Remove the RTC battery:

a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.
d) Remove PCIe riser 1 from the server to provide clearance to the RTC battery socket that is on the motherboard. See

Replacing a PCIe Riser, on page 93.

e) Locate the horizontal RTC battery socket.
f) Remove the battery from the socket on the motherboard. Gently pry the securing clip to the side to provide clearance,

then lift up on the battery.

Install a new RTC battery:

a) Insert the battery into its socket and press down until it clicks in place under the clip.

If you cannot safely view and access the component, remove the server from the
rack.

Cisco UCS C240 M5 Server Installation and Service Guide

87

Replacing Power Supplies

Maintaining the Server

Note

The positive side of the battery marked “3V+” should face

up.
b) Replace PCIe riser 1 to the server. See Replacing a PCIe Riser, on page 93.
c) Replace the top cover to the server.
d) Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 37: RTC Battery Location on Motherboard

Replacing Power Supplies

The server can have one or two power supplies. When two power supplies are installed they are redundant as
1+1.

See also Power Specifications, on page 122 for more information about the supported power supplies.

•

See also Rear-Panel LEDs, on page 35 for information about the power supply LEDs.

•

This section includes procedures for replacing AC and DC power supply units.

Cisco UCS C240 M5 Server Installation and Service Guide

88

-RTC battery in horizontal socket on motherboard1

Maintaining the Server

Replacing AC Power Supplies

Replacing Power Supplies

Step 1

Step 2

Note

If you have ordered a server with power supply redundancy (two power supplies), you do not have to
power off the server to replace a power supply because they are redundant as 1+1.

Do not mix power supply types or wattages in the server. Both power supplies must be identical.Note

Remove the power supply that you are replacing or a blank panel from an empty bay:

a) Perform one of the following actions:

If your server has only one power supply, shut down and remove power from the server as described in Shutting

•

Down and Removing Power From the Server, on page 39.

If your server has two power supplies, you do not have to shut down the server.

•

b) Remove the power cord from the power supply that you are replacing.
c) Grasp the power supply handle while pinching the release lever toward the handle.
d) Pull the power supply out of the bay.

Install a new power supply:

a) Grasp the power supply handle and insert the new power supply into the empty bay.
b) Push the power supply into the bay until the release lever locks.
c) Connect the power cord to the new power supply.
d) Only if you shut down the server, press the Power button to boot the server to main power mode.

Figure 38: Replacing AC Power Supplies

Power supply handle2Power supply release lever1

Cisco UCS C240 M5 Server Installation and Service Guide

89

Replacing Power Supplies

Replacing DC Power Supplies

Maintaining the Server

Note

Warning

Warning

Warning

Note

This procedure is for replacing DC power supplies in a server that already has DC power supplies installed.
If you are installing DC power supplies to the server for the first time, see Installing DC Power Supplies

(First Time Installation), on page 91.

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Statement 1022

This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.

Statement 1045

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

If you are replacing DC power supplies in a server with power supply redundancy (two power supplies),
you do not have to power off the server to replace a power supply because they are redundant as 1+1.

Step 1

Step 2

Do not mix power supply types or wattages in the server. Both power supplies must be identical.Note

Remove the DC power supply that you are replacing or a blank panel from an empty bay:

a) Perform one of the following actions:

If you are replacing a power supply in a server that has only one DC power supply, shut down and remove

•

power from the server as described in Shutting Down and Removing Power From the Server, on page 39.

If you are replacing a power supply in a server that has two DC power supplies, you do not have to shut down

•

the server.

b) Remove the power cord from the power supply that you are replacing. Lift the connector securing clip slightly and

then pull the connector from the socket on the power supply.
c) Grasp the power supply handle while pinching the release lever toward the handle.
d) Pull the power supply out of the bay.

Install a new DC power supply:

a) Grasp the power supply handle and insert the new power supply into the empty bay.

Cisco UCS C240 M5 Server Installation and Service Guide

90

Maintaining the Server

b) Push the power supply into the bay until the release lever locks.

c) Connect the power cord to the new power supply. Press the connector into the socket until the securing clip clicks

into place.

d) Only if you shut down the server, press the Power button to boot the server to main power mode.

Figure 39: Replacing DC Power Supplies

Replacing Power Supplies

-Keyed DC input socket2

Installing DC Power Supplies (First Time Installation)

Note

Warning

Warning

This procedure is for installing DC power supplies to the server for the first time. If you are replacing DC
power supplies in a server that already has DC power supplies installed, see Replacing DC Power Supplies,

on page 90.

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Statement 1022

This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.

PSU status LED3Keyed cable connector (CAB-48DC-40A-8AWG)1

Statement 1045

Cisco UCS C240 M5 Server Installation and Service Guide

91

Replacing Power Supplies

Maintaining the Server

Step 1

Step 2

Step 3

Step 4

Step 5

Warning

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

Do not mix power supply types or wattages in the server. Both power supplies must be identical.Note

Caution

As instructed in the first step of this wiring procedure, turn off the DC power source from your facility’s
circuit breaker to avoid electric shock hazard.

Turn off the DC power source from your facility’s circuit breaker to avoid electric shock hazard.

Note

The required DC input cable is Cisco part CAB-48DC-40A-8AWG. This 3-meter cable has a 3-pin connector
on one end that is keyed to the DC input socket on the power supply. The other end of the cable has no connector
so that you can wire it to your facility’s DC power.

Wire the non-terminated end of the cable to your facility’s DC power input source.

Connect the terminated end of the cable to the socket on the power supply. The connector is keyed so that the wires align
for correct polarity and ground.

Return DC power from your facility’s circuit breaker.

Press the Power button to boot the server to main power mode.

Step 6

Figure 40: Replacing DC Power Supplies

PSU status LED3Keyed cable connector (CAB-48DC-40A-8AWG)1

-Keyed DC input socket2

See Grounding for DC Power Supplies, on page 93 for information about additional chassis grounding.

Cisco UCS C240 M5 Server Installation and Service Guide

92

Maintaining the Server

Grounding for DC Power Supplies

AC power supplies have internal grounding and so no additional grounding is required when the supported
AC power cords are used.

When using a DC power supply, additional grounding of the server chassis to the earth ground of the rack is
available. Two screw holes for use with your dual-hole grounding lug and grounding wire are supplied on the
chassis rear panel.

Replacing a PCIe Riser

Note

The grounding points on the chassis are sized for M5 screws. You must provide your own screws, grounding
lug, and grounding wire. The grounding lug must be dual-hole lug that fits M5 screws. The grounding
cable that you provide must be 14 AWG (2 mm), minimum 60° C wire, or as permitted by the local code.

Replacing a PCIe Riser

This server has two toolless PCIe risers for horizontal installation of PCIe cards. Each riser is available in
multiple versions. See PCIe Slot Specifications, on page 95 for detailed descriptions of the slots and features
in each riser version.

Step 1

Step 2

Step 3
Step 4

Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach

cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

Remove the PCIe riser that you are replacing:

a) Grasp the flip-up handle on the riser and the blue forward edge, and then lift up evenly to disengage its circuit board

from the socket on the motherboard. Set the riser on an antistatic surface.

b) If the riser has a card installed, remove the card from the riser. See Replacing a PCIe Card, on page 97.

Step 5

Install a new PCIe riser:

Note

The PCIe risers are not interchangeable. If you plug a PCIe riser into the wrong socket, the server will not boot.
Riser 1 must plug into the motherboard socket labeled “RISER1.” Riser 2 must plug into the motherboard socket
labeled “RISER2.”

a) If you removed a card from the old PCIe riser, install the card to the new riser. See Replacing a PCIe Card, on page

97.

b) Position the PCIe riser over its socket on the motherboard and over its alignment slots in the chassis.

Cisco UCS C240 M5 Server Installation and Service Guide

93

Maintaining the Server

Replacing a PCIe Card

c) Carefully push down on both ends of the PCIe riser to fully engage its circuit board connector with the socket on the

motherboard.

Step 6
Step 7

Replace the top cover to the server.

Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.

Figure 41: PCIe Riser Alignment Features

1

forward edge)

Riser 2 alignment features in chassis2

Replacing a PCIe Card

Note

Cisco UCS C240 M5 Server Installation and Service Guide

94

Cisco supports all PCIe cards qualified and sold by Cisco. PCIe cards not qualified or sold by Cisco are
the responsibility of the customer. Although Cisco will always stand behind and support the C-Series
rack-mount servers, customers using standard, off-the-shelf, third-party cards must go to the third-party
card vendor for support if any issue with that particular card occurs.

Riser 1 alignment features in chassis3Riser handling points (flip-up handle and blue

Maintaining the Server

PCIe Slot Specifications

The server contains two toolless PCIe risers for horizontal installation of PCIe cards. Each riser is orderable
in multiple versions.

Riser 1 contains PCIe slots 1, 2, and 3 and is available in two different options:

•

Riser 2 contains PCIe slots 4, 5 and 6 and is available in four different options:

•

Replacing a PCIe Card

◦ Option 1—Slots 1 (x8), 2 (x16), and 3 (x8). Slots 1 and 2 are controlled by CPU 1; slot 3 is

controlled by CPU 2 and is unavailable in a single-CPU configuration.

◦ Option 1B—Slots 1 (x8), 2 (x8), and 3 (x8). All slots are controlled by CPU 1.

◦ Option 2A—Slots 4 (x16), 5 (x16), and 6 (x8).

◦ Option 2B—With slots 4 (x8), 5 (x16), and 6 (x8); includes one PCIe cable connector for

rear-loading NVMe SSDs.

◦ Option 2C—With slots 4 (x8), 5 (x8), and 6 (x8); includes one PCIe cable connector for rear-loading

NVMe SSDs, plus one PCIe cable connector for front-loading NVMe SSDs.

◦

Note

Figure 42: Rear Panel, Showing PCIe Slot Numbering

The following tables describe the specifications for the slots.

Table 5: PCIe Riser 1 (UCSC-PCI-1-C240M5) PCIe Expansion Slots

Slot Number

Electrical Lane
Width

Connector
Length

Maximum Card
Length

(Rear Panel
Opening)

Full height¾ lengthx24 connectorGen-3 x81

NCSI SupportCard Height

GPU Card
Support

1

NoYes

slot

YesYesFull heightFull lengthx24 connectorGen-3 x162

2

NoNoFull hightFull lengthx16 connectorGen-3 x83

One socket for Micro SD card on the top of the riser.Micro SD card

Cisco UCS C240 M5 Server Installation and Service Guide

95

Replacing a PCIe Card

1

NCSI is supported in only one slot at a time. If a GPU card is present in slot 2, NCSI support automatically moves to slot 1.

2

Slot 3 is not available in a single-CPU system.

Table 6: PCIe Riser 1B (UCSC-PCI-1B-C240M5) PCIe Expansion Slots

Maintaining the Server

Slot Number

Electrical Lane
Width

Connector
Length

Maximum Card
Length

(Rear Panel
Opening)

Full height¾ lengthx24 connectorGen-3 x81

One socket for Micro SD card on top of the riser.Micro SD card

slot

3

NCSI is supported in only one slot at a time. If a GPU card is present in slot 2, NCSI support automatically moves to slot 1.

Riser 2 is not available in a single-CPU system.Note

Table 7: PCIe Riser 2A (UCSC-PCI-2A-C240M5) PCIe Expansion Slots

Slot Number

Electrical Lane
Width

Connector
Length

Maximum Card
Length

(Rear Panel
Opening)

NCSI SupportCard Height

GPU Card
Support

3

NoYes

YesYesFull heightFull lengthx24 connectorGen-3 x82

NoNoFull hightFull lengthx16 connectorGen-3 x83

NCSI SupportCard Height

GPU Card
Support

Full height¾ lengthx24 connectorGen-3 x164

4

NCSI is supported in only one slot at a time. If a GPU card is present in slot 5, NCSI support automatically moves to slot 4.

Table 8: PCIe Riser 2B (UCSC-PCI-2B-C240M5) PCIe Expansion Slots

Slot Number

Electrical Lane
Width

Connector
Length

Maximum Card
Length

(Rear Panel
Opening)

Full height¾ lengthx24 connectorGen-3 x84

Cisco UCS C240 M5 Server Installation and Service Guide

96

4

NoYes

YesYesFull heightFull lengthx24 connectorGen-3 x165

NoNoFull hightFull lengthx16 connectorGen-3 x86

NCSI SupportCard Height

GPU Card
Support

5

NoYes

Maintaining the Server

To rear drive backplane; supports rear-loading NVMe SSDs.Gen-3 x8Cable connector
for rear NVMe
SSDs

5

NCSI is supported in only one slot at a time. If a GPU card is present in slot 5, NCSI support automatically moves to slot 4.

Table 9: PCIe Riser 2C (UCSC-PCI-2C-C240M5) PCIe Expansion Slots

Replacing a PCIe Card

YesYesFull heightFull lengthx24 connectorGen-3 x165

NoNoFull hightFull lengthx16 connectorGen-3 x86

Slot Number

Electrical Lane
Width

for rear NVMe
SSDs

for front NVMe
SSDs

6

NCSI is supported in only one slot at a time.

Note

Connector

Length

To rear drive backplane; supports rear-loading NVMe SSDs.Gen-3 x8Cable connector

To front drive backplane; supports front-loading NVMe SSDs.Gen-3 x8Cable connector

Maximum Card
Length

(Rear Panel
Opening)

Full heightFull lengthx24 connectorGen-3 x85

NCSI SupportCard Height

GPU Card
Support

NoYesFull height¾ lengthx24 connectorGen-3 x84

6

NoYes

NoNoFull hightFull lengthx16 connectorGen-3 x86

Replacing a PCIe Card

Note

Note

If you are installing a Cisco UCS Virtual Interface Card, there are prerequisite considerations. See Cisco

Virtual Interface Card (VIC) Considerations, on page 99.

RAID controller cards install into a dedicated motherboard socket. See Replacing a SAS Storage Controller

Card (RAID or HBA), on page 101.

Cisco UCS C240 M5 Server Installation and Service Guide

97

Replacing a PCIe Card

Maintaining the Server

Step 1

Step 2

Step 3
Step 4

Step 5

Note

For instructions on installing or replacing double-wide GPU cards, see GPU Card Installation, on page

149.

Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,

on page 39.

Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.

Caution

If you cannot safely view and access the component, remove the server from the
rack.

Remove the top cover from the server as described in Removing the Server Top Cover, on page 41.

Remove the PCIe card that you are replacing:

a) Remove any cables from the ports of the PCIe card that you are replacing.
b) Use two hands to flip up and grasp the blue riser handle and the blue fingergrip area on the front edge of the riser,

and then lift straight up.

c) On the bottom of the riser, push the release latch that holds the securing plate, and then swing the hinged securing

plate open.
d) Open the hinged card-tab retainer that secures the rear-panel tab of the card.
e) Pull evenly on both ends of the PCIe card to remove it from the socket on the PCIe riser.

If the riser has no card, remove the blanking panel from the rear opening of the riser.

Install a new PCIe card:

a) With the hinged card-tab retainer open, align the new PCIe card with the empty socket on the PCIe riser.
b) Push down evenly on both ends of the card until it is fully seated in the socket.
c)

Ensure that the card’s rear panel tab sits flat against the riser rear-panel opening and then close the hinged card-tab

retainer over the card’s rear-panel tab.
d) Swing the hinged securing plate closed on the bottom of the riser. Ensure that the clip on the plate clicks into the

locked position.
e) Position the PCIe riser over its socket on the motherboard and over the chassis alignment channels.

Cisco UCS C240 M5 Server Installation and Service Guide

98