Dell Precision 7920 Rack User Manual
Dell Precision 7920 Rack
Owner's Manual
Regulatory Model: E38S
Regulatory Type: E38S001
November 2020
Rev. A02
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
Contents
Chapter 1: Working on your computer........................................................................................... |
6 |
Safety instructions.............................................................................................................................................................. |
6 |
Before working inside your computer............................................................................................................................. |
6 |
After working inside your computer................................................................................................................................ |
7 |
Chapter 2: Chassis View................................................................................................................ |
8 |
Front chassis view............................................................................................................................................................... |
8 |
Back chassis view................................................................................................................................................................ |
9 |
Inside the system................................................................................................................................................................. |
9 |
LCD panel............................................................................................................................................................................. |
10 |
Viewing Home screen.................................................................................................................................................. |
11 |
Setup menu.................................................................................................................................................................... |
11 |
View menu...................................................................................................................................................................... |
12 |
Chapter 3: Product Overview....................................................................................................... |
13 |
System information label.................................................................................................................................................. |
13 |
Chapter 4: Disassembly and reassembly....................................................................................... |
14 |
Product Positioning........................................................................................................................................................... |
14 |
Recommended tools.......................................................................................................................................................... |
15 |
Need to know...................................................................................................................................................................... |
15 |
Common error messages............................................................................................................................................ |
15 |
Startup-Shutdown sequence..................................................................................................................................... |
17 |
Diagnostics and indicators............................................................................................................................................... |
17 |
Chassis LEDs....................................................................................................................................................................... |
17 |
Status LED indicators.................................................................................................................................................. |
17 |
Hard drive indicator codes......................................................................................................................................... |
19 |
NIC indicator codes..................................................................................................................................................... |
20 |
Power supply unit indicator codes.......................................................................................................................... |
20 |
iDRAC Direct LED indicator codes........................................................................................................................... |
21 |
iDRAC Quick Sync 2 indicator codes...................................................................................................................... |
22 |
Enhanced Preboot System Assessment................................................................................................................ |
23 |
Jumpers and connectors ................................................................................................................................................ |
25 |
System board jumpers and connectors.................................................................................................................. |
26 |
System board jumper settings.................................................................................................................................. |
27 |
Disabling forgotten password................................................................................................................................... |
28 |
Disassembly and reassembly........................................................................................................................................... |
28 |
Front Bezel.................................................................................................................................................................... |
28 |
System cover................................................................................................................................................................ |
29 |
Optical drive.................................................................................................................................................................. |
30 |
Air shroud....................................................................................................................................................................... |
31 |
Cooling fan assembly.................................................................................................................................................. |
32 |
Cooling fans.................................................................................................................................................................. |
33 |
Intrusion switch............................................................................................................................................................ |
34 |
Contents 3
Hard drive...................................................................................................................................................................... |
35 |
Memory modules......................................................................................................................................................... |
43 |
Processors and heat sinks......................................................................................................................................... |
45 |
Expansion card............................................................................................................................................................. |
49 |
vFlash card – optional................................................................................................................................................ |
56 |
Network daughter card.............................................................................................................................................. |
57 |
Hard drive backplane.................................................................................................................................................. |
57 |
Front USB module....................................................................................................................................................... |
58 |
Internal USB memory key (optional)...................................................................................................................... |
59 |
Power supply unit........................................................................................................................................................ |
60 |
System board................................................................................................................................................................ |
61 |
Trusted Platform Module.......................................................................................................................................... |
63 |
Control panel ............................................................................................................................................................... |
64 |
GPU Host Card Installation............................................................................................................................................. |
66 |
Alternate Riser Installation........................................................................................................................................ |
66 |
Teradici Tera2220 Host Cards Installation............................................................................................................ |
68 |
NVIDIA Quadro K4200 Graphics Cards Installation ............................................................................................ |
73 |
Cabling Teradici Host Cards to GPUs..................................................................................................................... |
78 |
Updating BIOS ................................................................................................................................................................... |
81 |
Restoring the Service Tag using Easy Restore ......................................................................................................... |
81 |
Manually update the Service Tag ............................................................................................................................ |
81 |
Installation............................................................................................................................................................................ |
81 |
Rack Rails...................................................................................................................................................................... |
82 |
Initialization................................................................................................................................................................... |
90 |
Basic configuration...................................................................................................................................................... |
91 |
Accessing system information by using QRL.............................................................................................................. |
91 |
Quick Resource Locator for 7920R........................................................................................................................ |
92 |
Chapter 5: Technology and components...................................................................................... |
93 |
iDRAC9................................................................................................................................................................................. |
93 |
iDRAC 9 - New features............................................................................................................................................ |
93 |
Dell Lifecycle Controller................................................................................................................................................... |
94 |
Processors.......................................................................................................................................................................... |
95 |
Supported processors................................................................................................................................................ |
96 |
Chipset............................................................................................................................................................................... |
102 |
System memory............................................................................................................................................................... |
102 |
General memory module installation guidelines.................................................................................................. |
103 |
Memory........................................................................................................................................................................ |
104 |
LCD panel.......................................................................................................................................................................... |
105 |
Viewing Home screen............................................................................................................................................... |
106 |
Setup menu................................................................................................................................................................. |
106 |
View menu................................................................................................................................................................... |
106 |
Expansion cards and expansion card risers............................................................................................................... |
107 |
Expansion card installation guidelines................................................................................................................... |
107 |
Storage............................................................................................................................................................................... |
108 |
Power supply units.......................................................................................................................................................... |
109 |
Hot spare feature...................................................................................................................................................... |
109 |
Trusted platform module ............................................................................................................................................... |
110 |
4 Contents
Chapter 6: BIOS and UEFI........................................................................................................... |
111 |
Options to manage the pre-operating system applications.................................................................................... |
111 |
System Setup..................................................................................................................................................................... |
111 |
Viewing System Setup............................................................................................................................................... |
111 |
System Setup Main Menu........................................................................................................................................ |
112 |
System BIOS screen.................................................................................................................................................. |
112 |
System information screen details......................................................................................................................... |
113 |
Memory settings screen details.............................................................................................................................. |
113 |
Processor settings screen details........................................................................................................................... |
114 |
SATA settings screen details................................................................................................................................... |
115 |
Boot settings screen details..................................................................................................................................... |
117 |
Network settings screen details............................................................................................................................. |
118 |
Integrated devices screen details........................................................................................................................... |
119 |
Serial Communication screen details..................................................................................................................... |
121 |
System profile settings screen details................................................................................................................... |
121 |
System security settings screen details............................................................................................................... |
122 |
Miscellaneous settings screen details................................................................................................................... |
124 |
Technical specifications................................................................................................................................................. |
124 |
System dimensions.................................................................................................................................................... |
125 |
Chassis weight............................................................................................................................................................ |
125 |
Processor specifications.......................................................................................................................................... |
125 |
PSU specifications..................................................................................................................................................... |
126 |
System battery specifications................................................................................................................................ |
126 |
Expansion bus specifications.................................................................................................................................. |
126 |
Memory specifications.............................................................................................................................................. |
127 |
Ports and connectors specifications..................................................................................................................... |
127 |
Video specifications................................................................................................................................................... |
128 |
Environmental specifications.................................................................................................................................. |
128 |
Chapter 7: Troubleshooting your system.................................................................................... |
131 |
System diagnostics.......................................................................................................................................................... |
131 |
Dell Embedded System Diagnostics....................................................................................................................... |
131 |
Chapter 8: Getting help............................................................................................................. |
133 |
Contacting Dell................................................................................................................................................................. |
133 |
Contents 5
1
Working on your computer
Topics:
•Safety instructions
•Before working inside your computer
•After working inside your computer
Safety instructions
Prerequisites
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist:
●You have read the safety information that shipped with your computer.
●A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
About this task
NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the computer, replace all covers, panels, and screws before connecting to the power source.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface at the same time as touching a connector on the back of the computer.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the side cover is removed.
Before working inside your computer
About this task
To avoid damaging your computer, perform the following steps before you begin working inside the computer.
6 Working on your computer
Steps
1.Ensure that you follow the Safety instructions.
2.Turn off the system, including any attached peripherals.
3.Disconnect the system from the electrical outlet and disconnect the peripherals.
4.If applicable, remove the system from the rack.
5.Remove the system cover.
After working inside your computer
About this task
After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your computer.
Steps
1.Replace the cover.
2.If applicable, install the system into the rack.
3.Reconnect the peripherals and connect the system to the electrical outlet.
4.Turn on the system, including any attached peripherals.
Working on your computer |
7 |
2
Chassis View
Topics:
•Front chassis view
•Back chassis view
•Inside the system
•LCD panel
Front chassis view
1. |
System Status Indicator |
2. |
System health and system ID |
3. |
iDRAC Quick Sync 2 wireless indicator |
4. |
Hard drive (x8) |
5. |
USB 3.0 connector |
6. |
Optical-drive (optional) |
7. |
USB 2.0 connector |
8. |
Power button/Power light |
9. |
VGA connector |
10. |
USB management port/iDRAC Direct |
11. |
USB 2.0 connector |
|
|
8 Chassis View
Back chassis view
1. |
PCIe expansion card slots |
2. |
PCIe expansion card slots |
3. |
PCIe expansion card slots |
4. |
PCIe expansion card slots |
5. |
Power supply (x2) |
6. |
Network connectors (x4) |
7. |
USB 3.0 connectors (x2) |
8. |
VGA connector |
9. |
Serial connector |
10. iDRAC9 Enterprise Network connector |
|
11. |
System identification connector |
12. |
System identification button |
Inside the system
NOTE: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
Chassis View |
9 |
Figure 1. Inside chassis view
1.hard drive backplane
2.cooling fan (6) in the cooling fan assembly
3.DIMM sockets
4.CPU DIMM blank
5.CPU 2
6.expansion card riser 3A
7.expansion card riser 2A
8.VFlash connector
9.system board
10.expansion card riser 1C
11.CPU 1
LCD panel
The LCD panel provides system information, status, and error messages to indicate if the system is functioning correctly or requires attention. The LCD panel can also be used to configure or view the system’s iDRAC IP address. For information about the event and error messages generated by the system firmware and agents that monitor system components, see the Error Code Lookup page at qrl.dell.com.
The LCD panel is available only on the optional front bezel. The optional front bezel is hot pluggable.
The statuses and conditions of the LCD panel are outlined here:
● The LCD backlight is white during normal operating conditions.
10 Chassis View
● When the system needs attention, the LCD backlight turns amber, and displays an error code followed by descriptive text. 
NOTE: If the system is connected to a power source and an error is detected, the LCD turns amber regardless of whether the system is turned on or off.
●When the system turns off and there are no errors, LCD enters the standby mode after five minutes of inactivity. Press any button on the LCD to turn it on.
●If the LCD panel stops responding, remove the bezel and reinstall it. If the problem persists, see Getting help section.
●The LCD backlight remains off if LCD messaging is turned off using the iDRAC utility, the LCD panel, or other tools.
Figure 2. LCD panel features
Table 1. LCD panel features
Item |
Button or |
Description |
||
|
display |
|
|
|
|
|
|
||
|
|
|
|
|
1 |
Left |
Moves the cursor back in one-step increments. |
||
|
|
|
||
2 |
Select |
Selects the menu item highlighted by the cursor. |
||
|
|
|
||
3 |
Right |
Moves the cursor forward in one-step increments. |
||
|
|
During message scrolling: |
||
|
|
● Press and hold the right button to increase scrolling speed. |
||
|
|
● Release the button to stop. |
||
|
|
|
|
NOTE: The display stops scrolling when the button is released. After 45 seconds of inactivity, |
|
|
|
|
|
|
|
|
||
|
|
|
|
the display starts scrolling. |
|
|
|
||
4 |
LCD display |
Displays system information, status, and error messages or iDRAC IP address. |
||
|
|
|
|
|
Viewing Home screen
The Home screen displays user-configurable information about the system. This screen is displayed during normal system operation when there are no status messages or errors. When the system turns off and there are no errors, LCD enters the standby mode after five minutes of inactivity. Press any button on the LCD to turn it on.
Steps
1.To view the Home screen, press one of the three navigation buttons (Select, Left, or Right).
2.To navigate to the Home screen from another menu, complete the following steps:
a.Press and hold the navigation button until the up arrow 
is displayed.
b.Navigate to the Home icon 
using the up arrow 
.
c.Select the Home icon.
d.On the Home screen, press the Select button to enter the main menu.
Setup menu
NOTE: When you select an option in the Setup menu, you must confirm the option before proceeding to the next action.
Chassis View |
11 |
Option |
Description |
iDRAC |
Select DHCP or Static IP to configure the network mode. If Static IP is selected, the available fields are |
|
IP, Subnet (Sub), and Gateway (Gtw). Select Setup DNS to enable DNS and to view domain |
|
addresses. Two separate DNS entries are available. |
Set error |
Select SEL to view LCD error messages in a format that matches the IPMI description in the SEL. This |
|
enables you to match an LCD message with an SEL entry. |
|
Select Simple to view LCD error messages in a simplified user-friendly description. |
Set home |
Select the default information to be displayed on the Home screen. See View menu section for the |
|
options and option items that can be set as the default on the Home screen. |
View menu
NOTE: When you select an option in the View menu, you must confirm the option before proceeding to the next action.
Option |
Description |
iDRAC IP |
Displays the IPv4 or IPv6 addresses for iDRAC9. Addresses include DNS (Primary and Secondary), |
|
Gateway, IP, and Subnet (IPv6 does not have Subnet). |
MAC |
Displays the MAC addresses for iDRAC, iSCSI, or Network devices. |
Name |
Displays the name of the Host, Model, or User String for the system. |
Number |
Displays the Asset tag or the Service tag for the system. |
Power |
Displays the power output of the system in BTU/hr or Watts. The display format can be configured in the |
|
Set home submenu of the Setup menu. |
Temperature |
Displays the temperature of the system in Celsius or Fahrenheit. The display format can be configured in |
|
the Set home submenu of the Setup menu. |
12 Chassis View
3
Product Overview
The following pages contain information about Dell Precision 7920 Rack product overview.
Topics:
•System information label
System information label
Precision 7920 Rack – Front system information label
Figure 3. LED Behavior, Express Service Tag, Configuration and Layout
Precision 7920 Rack – Service information
Figure 4. System touchpoint, electrical overview, jumper settings and memory information
Product Overview |
13 |
4
Disassembly and reassembly
Topics:
•Product Positioning
•Recommended tools
•Need to know
•Diagnostics and indicators
•Chassis LEDs
•Jumpers and connectors
•Disassembly and reassembly
•GPU Host Card Installation
•Updating BIOS
•Restoring the Service Tag using Easy Restore
•Installation
•Accessing system information by using QRL
Product Positioning
The Precision 7920 Rack is a general-purpose platform with highly expandable memory (up to 1536 GB), massive storage capacity and impressive I/O capability to match. The Precision 7920 Rack adds extraordinary storage capacity options, making it well-suited for data intensive applications that require greater storage, while not sacrificing I/O performance.
●Performance
○Two Intel Xeon Skylake Processor Scalable Family processors
○Twenty four DIMM Slot supporting up total up to 1.5TB of memory
○Support total up to eight hard drives.
●Availability
○Redundant power supply units (PSUs)
○Hot-plug and hot-swappable PSUs, hard disk drives, and fans
○PERC9/PERC10/Chipset SATA.
○Internal vFLASH card
○iDRAC9 Express or Enterprise with Dell Lifecycle Controller
○Optional iDRAC Quick Sync II
●Expandability, I/O Storage
○Only 8x 3.5" SAS,SATA(front) hard drives
○Up to eight optional NVMe Express Flash PCIe SSDs with two PCIe Zoom4 cards.
○System Network Architecture (SNA): 4x 1GbE or 2x 10GbE + 2x 1GbE
○Choice of RAID options for even higher performance
14 Disassembly and reassembly
Recommended tools
Table 2. Recommended tools and optional tools
Recommended tools |
Optional tools |
●Key to the system keylock
●#1 and #2 Phillips screwdriver
●T30 and T8 Torx screwdrivers
●Wrist-grounding strap connected to the ground
●ESD Mat
●Needle-nose pliers to disconnect cables and connectors in hard-to-reach locations
●Small flat-head screwdriver to disconnect small cables from boards
Need to know
Before you begin servicing the system, you must read the following information:
●Critical callouts
●Common error codes
●Version control for BIOS/ Firmware/ Software
●Startup/Shutdown sequence
Common error messages
The Event Message Reference contains the error and event information generated by firmware and other agents that monitor system components. These events might be logged, presented to the user on one of the system management consoles, or both logged and displayed.
Each event consists of the following fields:
Disassembly and reassembly |
15 |
Table 3. Common error messages
Event Message Fields
|
Item |
Description |
|
|
|
|
|
|
|
|
|
|
Message ID |
The unique alphanumeric identifier for the event. This identifier can be up |
|
|
|
to eight characters long and consist of two parts: |
|
|
|
● Message ID Prefix — Up to four alphabetic characters. |
|
|
|
● Message ID Sequence — Up to four numeric digits. |
|
|
Message |
The message text that is displayed to the user or logged as a result of |
|
|
|
the event. If the message has variable content in it, the variable |
|
|
|
substitution is reflected by text in italics. The substitution variables are |
|
|
|
described in the Arguments field of the event. |
|
|
|
|
|
|
Arguments |
Describes the values for any substitution variables appearing in the event |
|
|
|
message text. If there is no variable content in the message, this field is |
|
|
|
omitted from the event description. |
|
|
|
|
|
|
Detailed Description |
Additional information describing the event. |
|
|
|
|
|
|
Recommended Response Action |
The recommended action to remedy the event described. The response |
|
|
|
action can vary based on the specific platform. |
|
|
|
|
|
|
Category |
Dell Lifecycle Controller log filter used to select a subset of messages |
|
|
|
from different domains or agents. |
|
|
|
|
|
|
Subcategory |
Additional filter to further subset the event. |
|
|
|
|
|
|
Trap/EventID |
The identification number used as the Trap ID for SNMP alert traps and |
|
|
|
as the Event ID when the message is logged in operating system logs. |
|
|
|
|
|
|
Severity |
The classification of the event based on its impact to the platform or |
|
|
|
system. The severity can be: |
|
|
|
● Severity 1 Critical — Indicates a catastrophic production problem that |
|
|
|
might severely impact production systems or components, or systems |
|
|
|
are down or not functioning. |
|
|
|
● Severity 2 Warning — Indicates a high-impact problem where a |
|
|
|
system or component is disrupted but can remain productive and |
|
|
|
perform business-level operations. |
|
|
|
● Severity 3 Information — Indicates a medium-to-low impact problem |
|
|
|
that involves a partial or noncritical loss of functionality; operations |
|
|
|
are impaired but can continue to function. |
|
|
|
|
|
|
LCD Message |
The event message text that is displayed on the system's LCD. |
|
|
|
|
|
|
Initial Default |
Event messages result in event actions such as logging, SNMP or email |
|
|
|
alerts. Generally, the event actions are configurable using the Dell iDRAC |
|
|
|
event action filtering feature. This item describes the initial default and |
|
|
|
possible event actions for the message. |
|
|
|
|
|
|
Event Action Filter |
Describes additional configurable actions that are available for the event |
|
|
|
action for this message. This information is presented in a table, and each |
|
|
|
entry has a value of TRUE or FALSE to indicate its applicability. |
|
|
|
● Filter Visibility — Event visible to iDRAC event filtering. |
|
|
|
● IPMI Alert — Event can generate an IMPI alert. |
|
|
|
● SNMP Alert — Event can generate an SNMP trap. |
|
|
|
● Email Alert — Event can generate an email alert. |
|
|
|
● LC Log — Event can generate a Dell Lifecycle Controller log entry. |
|
|
|
● LCD — Event is displayed on the system's LCD. |
|
|
|
● Power Off — Event can cause the system to power off. |
|
|
|
● Power Cycle — Event can cause the system to perform a power |
|
|
|
cycle. |
|
|
|
● Reset — Event can cause the system to perform a reset. |
|
|
|
|
|
For more information on the list of error and event messages, see the Dell Event Messages Reference Guide
16 Disassembly and reassembly
Startup-Shutdown sequence
NOTE: Precision 7920 Rack BIOS is pure UEFI with a legacy compatibility layer. This layer is called the Compatibility Support Module.
New POST display
The following are the POST display enhancements:
●The look of the boot process has been revamped for Precision 7920 Rack.
●The Dell high-resolution splash screen displays instantly after power-on.
●Both a progress bar and descriptive text appear on-screen.
●Hotkey behavior remains unchanged (<F2> still takes you to System Setup).
●There is a uniform look and feel through the boot process (one exception — the system will drop to text mode briefly to run legacy option ROMs when booting in legacy mode).
●POST error messages are now compliant with Error Exception Message Initiative (EEMI).
NOTE: All POST error and warning messages will be logged in the LC log.
●UEFI option ROMs display error/warning messages on the screen via the Driver Health Protocol (DHP). The auto-repair logic is also included in Boot Device Selection (BDS) just before booting. Show the repair GUI and load the controller formset if EfiDriverHealthStatsuConfigurationRequired status is returned.
Enhanced boot support
The following lists the boot support enhancements:
●Enhanced method to change the boot list based on Fully Qualified Descriptors (FQDDs). This allows for systems management consoles and the factory to specify a boot list for devices that are not currently present, for example, disabled NDC or other boot mode.
●New ability to toggle between LC and BIOS.
●The Boot Manager (<F11>) and BIOS Setup (<F2>) will only contain the boot option enumeration of the current Boot mode.
●Completely revised boot flow.
Diagnostics and indicators
The following pages contain the information about diagnostics and indicators for Precision 7920 Rack.
Chassis LEDs
The following pages contain the information about the chassis LEDs.
Status LED indicators
NOTE: The diagnostic indicators are not present if the system is equipped with an LCD display.
NOTE: The status LED indicators are always off and only turns on to a solid amber if any error occurs.
Table 4. Status LED indicators and descriptions
Icon |
Description |
Condition |
Corrective action |
|
|
|
|
|
Health indicator |
The indicator turns solid blue if the |
None required. |
|
|
is in good health. |
|
|
|
The indicator blinks amber: |
Check the System Event Log or system messages |
|
|
● When the is turned on. |
for the specific issue. For more information about |
|
|
|
|
Disassembly and reassembly |
17 |
Table 4. Status LED indicators and descriptions (continued)
Icon |
Description |
Condition |
Corrective action |
|
● When the is in standby. |
|
● If any error condition exists. For |
|
example, a failed fan, PSU, or a |
|
hard drive. |
Drive indicator |
The indicator turns solid amber if |
|
there is a drive error. |
error messages, see the Dell Event and Error Messages Reference Guide at Dell.com/ openmanagemanuals > OpenManage software.
The POST process is interrupted without any video output due to invalid memory configurations. See the Getting help section.
●Check the System Event Log to determine if the drive has an error.
●Run the appropriate Online Diagnostics test. Restart the system and run embedded diagnostics (ePSA).
●If the drives are configured in a RAID array, restart the system, and enter the host adapter configuration utility program.
Temperature |
The indicator turns solid amber if |
indicator |
the system experiences a thermal |
|
error (for example, the ambient |
|
temperature is out of range or |
|
there is a fan failure). |
Ensure that none of the following conditions exist:
●A cooling fan has been removed or has failed.
●System cover, air shroud, memory module blank, or back filler bracket is removed.
●Ambient temperature is too high.
●External airflow is obstructed.
If the problem persists, see the Getting help section.
Electrical |
The indicator turns solid amber if |
indicator |
the system experiences an |
|
electrical error (for example, |
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voltage out of range, or a failed |
|
power supply unit (PSU) or voltage |
|
regulator). |
Memory indicator |
The indicator turns solid amber if a |
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memory error occurs. |
PCIe indicator |
The indicator turns solid amber if a |
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PCIe card experiences an error. |
Check the System Event Log or system messages for the specific issue. If it is due to a problem with the PSU, check the LED on the PSU. Reseat the PSU. If the problem persists, see the Getting help section.
Check the System Event Log or system messages for the location of the failed memory. Reseat the memory module. If the problem persists, see the Getting help section.
Restart the system. Update any required drivers for the PCIe card. Reinstall the card. If the problem persists, see the Getting help section.
NOTE: For more information about the supported PCIe cards, see the Expansion card installation guidelines section.
18 Disassembly and reassembly
Hard drive indicator codes
Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status LED indicator indicates the power condition of the drive.
Hard drive indicators
NOTE: LED status or activity indicators will only work with a backplane with each carriers shown below.
Figure 5. Hard drive indicators
1.hard drive activity LED indicator
2.hard drive status LED indicator
3.hard drive
NOTE: If the hard drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn on.
Disassembly and reassembly |
19 |
NOTE: Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.
Table 5. Hard drive indicator codes
Hard drive status indicator code |
Condition |
||
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||
Flashes green twice per second |
Identifying drive or preparing for removal. |
||
Off |
Drive ready for removal. |
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NOTE: The drive status indicator remains off until all drives |
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||
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are initialized after the system is turned on. Drives are not |
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ready for removal during this time. |
Flashes green, amber, and then turns off |
Predicted drive failure. |
||
Flashes amber four times per second |
Drive failed. |
||
Flashes green slowly |
Drive rebuilding. |
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Solid green |
Drive online. |
||
Flashes green for three seconds, amber for three |
Rebuild stopped. |
||
seconds, and then turns off after six seconds |
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NIC indicator codes
Each NIC on the back of the system has indicators that provide information about the activity and link status. The activity LED indicator indicates if data is flowing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 6. NIC indicator codes
1. Link LED indicator
2. Activity LED indicator
Table 6. NIC indicator codes
Status |
Condition |
|
|
Link and activity indicators are off. |
The NIC is not connected to the network. |
Link indicator is green, and activity indicator is blinking |
The NIC is connected to a valid network at its maximum port speed, |
green. |
and data is being sent or received. |
Link indicator is amber, and activity indicator is blinking |
The NIC is connected to a valid network at less than its maximum |
green. |
port speed, and data is being sent or received. |
Link indicator is green, and activity indicator is off. |
The NIC is connected to a valid network at its maximum port speed, |
|
and data is not being sent or received. |
Link indicator is amber, and activity indicator is off. |
The NIC is connected to a valid network at less than its maximum |
|
port speed, and data is not being sent or received. |
Link indicator is blinking green, and activity is off. |
NIC identify is enabled through the NIC configuration utility. |
|
|
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows whether power is present or a power fault has occurred.
20 Disassembly and reassembly
Figure 7. AC PSU status indicator
1. AC PSU status indicator/handle
Table 7. AC PSU status indicator codes
Power indicator codes |
Condition |
||
|
|
||
Green |
A valid power source is connected to the PSU and the PSU is operational. |
||
Blinking amber |
Indicates a problem with the PSU. |
||
Not illuminated |
Power is not connected to the PSU. |
||
Blinking green |
When the firmware of the PSU is being updated, the PSU handle blinks green. |
||
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CAUTION: Do not disconnect the power cord or unplug the PSU when updating |
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|
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firmware. If firmware update is interrupted, the PSUs do not function. |
Blinking green and turns |
When hot-plugging a PSU, the PSU handle blinks green five times at a rate of 4 Hz and turns off. |
||
off |
This indicates a PSU mismatch with respect to efficiency, feature set, health status, or supported |
||
|
voltage. |
||
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CAUTION: If two PSUs are installed, both the PSUs must have the same type of label. |
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For example, Extended Power Performance (EPP) label. Mixing PSUs from previous |
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generations of Precision Workstation is not supported, even if the PSUs have the |
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same power rating. This results in a PSU mismatch condition or failure to turn the |
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system on. |
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CAUTION: When correcting a PSU mismatch, replace only the PSU with the blinking |
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indicator. Swapping the PSU to make a matched pair can result in an error condition |
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and unexpected system shutdown. To change from a high output configuration to a |
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low output configuration or vice versa, you must turn off the system. |
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CAUTION: AC PSUs support both 240 V and 120 V input voltages with the exception of |
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Titanium PSUs, which support only 240 V. When two identical PSUs receive different |
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input voltages, they can output different wattages, and trigger a mismatch. |
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CAUTION: If two PSUs are used, they must be of the same type and have the same |
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maximum output power. |
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NOTE: Ensure that both the PSUs are of the same capacity. |
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NOTE: Mixing PSUs (even the PSUs that have the same power rating) from previous |
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generations of Precision Workstation is not supported. This results in a PSU mismatch |
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condition or failure to turn the system on. |
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iDRAC Direct LED indicator codes
The iDRAC Direct LED indicator lights up to indicate that the port is connected and is being used as a part of the iDRAC subsystem.
iDRAC Direct LED indicator is located below the iDRAC Direct port on the right control panel.
You can configure iDRAC Direct by using a USB to micro USB (type AB) cable, which you can connect to your laptop or tablet. The following table describes iDRAC Direct activity when the iDRAC Direct port is active:
Disassembly and reassembly |
21 |
Table 8. iDRAC Direct LED indicator codes
iDRAC Direct LED indicator code
Solid green for two seconds
Flashing green (on for two seconds and off for two seconds)
Turns off
Condition
Indicates that the laptop or tablet is connected.
Indicates that the laptop or tablet connected is recognized.
Indicates that the laptop or tablet is unplugged.
iDRAC Quick Sync 2 indicator codes
iDRAC Quick Sync 2 module (optional) is on the front panel of your system.
Figure 8. iDRAC Quick Sync 2 indicator
Table 9. iDRAC Quick Sync 2 indicators and descriptions
iDRAC Quick Sync 2 indicator Condition code
Off (default state) |
Indicates that the iDRAC Quick Sync 2 |
|
feature is turned off. Press the iDRAC |
|
Quick Sync 2 button to turn on the |
|
iDRAC Quick Sync 2 feature. |
Solid white |
Indicates that iDRAC Quick Sync 2 is |
|
ready to communicate. Press the iDRAC |
|
Quick Sync 2 button to turn off. |
Blinks white rapidly |
Indicates data transfer activity. |
Corrective action
If the LED fails to turn on, reset the left control panel flex cable and check. If the problem persists, see the Getting help section.
If the LED fails to turn off, restart the system. If the problem persists, see the Getting help section.
NA
Blinks white slowly |
Indicates that firmware update is in |
|
progress. |
Blinks white five times rapidly |
Indicates that the iDRAC Quick Sync 2 |
and then turns off |
feature is disabled. |
Solid amber |
Indicates that the system is in fail-safe |
|
mode. |
Blinking amber |
Indicates that the iDRAC Quick Sync 2 |
|
hardware is not responding properly. |
If the problem persists, see the Getting help section.
NA
If the indicator continues to blink indefinitely, see the Getting help section.
Check if iDRAC Quick Sync 2 feature is configured to be disabled by iDRAC.
If the problem persists, see the Getting help section.
For more information, see Integrated Dell Remote Access Controller User's Guide at dell.com/ idracmanuals or Dell OpenManage Server Administrator User’s Guide at dell.com/ openmanagemanuals .
Restart the system.
If the problem persists, see the Getting help section.
Restart the system.
22 Disassembly and reassembly
Table 9. iDRAC Quick Sync 2 indicators and descriptions (continued)
iDRAC Quick Sync 2 indicator Condition code
Corrective action
If the problem persists, see the Getting help section.
Enhanced Preboot System Assessment
If you experience a problem with your system, run the system diagnostics before contacting Dell for technical assistance. The purpose of running system diagnostics is to test your system hardware without requiring more equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.
Dell Embedded system diagnostics
NOTE: The Dell Embedded System Diagnostics is also known as Enhanced Preboot System Assessment (ePSA) diagnostics. The embedded system diagnostics provides a set of options for particular device groups or devices allowing you to:
●Run tests automatically or in an interactive mode.
●Repeat tests
●Display or save test results.
●Introduce more test options for extra information about the failed devices, run a thorough test.
●View status messages that inform you if tests are completed successfully.
●View error messages that inform you of problems encountered during testing.
Running the Embedded system diagnostics from Boot Manager
To run the embedded system diagnostics from Boot Manager:
1.As the system boots, press <F11>.
2.Using the arrow keys select System Utilities → Launch Diagnostics.
Figure 9. Boot Manager Main Menu
Disassembly and reassembly |
23 |
Figure 10. System Utilities
3. Wait while the Quick Tests automatically run.
Figure 11. Quick Test
4.Once the tests have been completed, you can view the results and additional information on the Results tab, the System Health tab, the Configuration tab, and the Event Log tab.
5.Close the Embedded System Diagnostics utility.
6.To leave the diagnostics, click Exit.
7.Click OK when prompted, and the system reboots.
Running the Embedded System Diagnostics from the Dell Lifecycle Controller
To run the embedded system diagnostics from the Dell Lifecycle Controller:
1. As the system boots, press F10. 
24 Disassembly and reassembly
2. Select Hardware Diagnostics → Run Hardware Diagnostics. 
Jumpers and connectors
This topic provides specific information about the jumpers. It also provides some basic information about jumpers and switches and describes the connectors on the various boards in the system. Jumpers on the system board help to disable the system and setup passwords. You must know the connectors on the system board to install components and cables correctly.
Disassembly and reassembly |
25 |
System board jumpers and connectors
Figure 12. System board jumpers and connectors
Table 10. System board jumpers and connectors
Item |
Connector |
Description |
|
|
|
|
|
|
1 |
J_ODD |
Optical drive power connector |
|
|
|
2 |
A7, A1, A8, A2, A9, A3 |
Memory module sockets |
|
|
|
3 |
J_FAN2U_6 |
Cooling fan 6 connector |
|
|
|
4 |
J_BP3 |
Backplane 3 power connector |
|
|
|
5 |
J_FAN2U_5 |
Cooling fan 5 connector |
|
|
|
6 |
A6, A12, A5, A11, A4, A10 |
Memory module sockets |
|
|
|
7 |
J_FAN2U_4 |
Cooling fan 4 connector |
|
|
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8 |
INTRUSION_DET |
Intrusion switch connector |
|
|
|
9 |
B7, B1, B8, B2, B9, B3 |
Memory module sockets |
|
|
|
10 |
J_FAN2U_3 |
Cooling fan 3 connector |
|
|
|
11 |
J_FAN2U_2 |
Cooling fan 2 connector |
|
|
|
26 Disassembly and reassembly
Table 10. System board jumpers and connectors (continued)
Item |
Connector |
Description |
|
|
|
|
|
|
12 |
J_BP_SIG1 |
Backplane 1 signal connector |
|
|
|
13 |
B6, B12, B5, B11, B4, B10 |
Memory module sockets |
|
|
|
14 |
J_BP1 |
Backplane 1 power connector |
|
|
|
15 |
J_FAN2U_1 |
Cooling fan 1 connector |
|
|
|
16 |
P_LFT_CP |
Left control panel connector |
|
|
|
17 |
CPU2 |
CPU2 processor and heat sink module socket (with |
|
|
dust cover) |
|
|
|
18 |
J_R3_X24 |
Riser 3 connector |
|
|
|
19 |
J_BP_SIG2 |
Backplane 2 signal connector |
|
|
|
20 |
J_BP_SIG0 |
Backplane 0 signal connector |
|
|
|
21 |
J_BP0 (RSR3_225W) |
Backplane 0 power connector (Riser 3 PCIe 225 W |
|
|
power) |
|
|
|
22 |
J_BP2 (RSR2_225W) |
Backplane 2 power connector (Riser 2 PCIe 225 W |
|
|
power) |
|
|
|
23 |
J_BATT_SIG |
NVDIMM-N battery signal connector |
|
|
|
24 |
J_BATT_PWR |
NVDIMM-N battery power connector |
|
|
|
25 |
J_USB_INT |
Internal USB connector |
|
|
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26 |
J_IDSDM |
IDSDM/vFlash connector |
|
|
|
27 |
J_NDC |
NDC connector |
|
|
|
28 |
J_R2_X24_IT9 |
Riser 2 connector |
|
|
|
29 |
J_R2_3R_X8_IT9 |
Riser 2 connector |
|
|
|
30 |
BATTERY |
Battery connector |
|
|
|
31 |
J_FRONT_VIDEO |
Video connector |
|
|
|
32 |
J_R1_SS82_3 and J_R1_SS60_1 |
Riser 1 connector |
|
|
|
33 |
J_TPM_MODULE |
TPM connector |
|
|
|
34 |
J_SATA_B |
SATA B connector |
|
|
|
35 |
J_R1_SS82_1 |
Riser 1 connector (Mini PERC option) |
|
|
|
36 |
J_SATA_A |
SATA A connector |
|
|
|
37 |
J_SATA_C |
SATA C connector (Optical drive SATA connector) |
|
|
|
38 |
CPU1 |
CPU1 processor and heat sink module |
|
|
|
39 |
P_RGT_CP |
Right control panel connector |
|
|
|
System board jumper settings
For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 11. System board jumper settings
Jumper |
Setting |
Description |
|
|
|
PWRD_EN |
|
The BIOS local access is protected with the software security |
|
|
features. |
|
|
|
Disassembly and reassembly |
27 |
Table 11. System board jumper settings (continued)
Jumper |
Setting |
Description |
|
|
|
|
|
The BIOS local access security features are unlocked on the |
|
|
next AC power cycle. |
|
|
|
NVRAM_CLR |
|
The BIOS configuration settings are retained at system boot. |
|
|
|
|
|
The BIOS configuration settings are cleared at system boot. |
|
|
|
Disabling forgotten password
The software security features of the system include a system password and a setup password. The password jumper enables or disables password features and clears any password(s) currently in use.
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
Steps
1.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2.Remove the system cover.
3.Move the jumper on the system board jumper from pins 2 and 4 (default) to pins 4 and 6.
4.Install the system cover.
The existing passwords are not disabled (erased) until the system boots with the jumper on pins 4 and 6. However, before you assign a new system and/or setup password, you must move the jumper back to pins 2 and 4.
NOTE: If you assign a new system and/or setup password with the jumper on pins 4 and 6, the system disables the new password(s) the next time it boots.
5.Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.
6.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
7.Remove the system cover.
8.Move the jumper on the system board jumper from pins 4 and 6 to pins 2 and 4 (default).
9.Install the system cover.
10.Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.
11.Assign a new system and/or setup password.
Disassembly and reassembly
The following sections contain the procedures for removing and replacing system components.
Front Bezel
Removing the optional front bezel
Steps
1. Locate and remove the bezel key.
28 Disassembly and reassembly
NOTE: The bezel key is attached to the LCD bezel package.
2.Unlock the bezel by using the key.
3.Press the release button to release the bezel, and pull the left end of the bezel.
4.Unhook the right end, and remove the bezel.
Installing the optional front bezel
Steps
1. Locate and remove the bezel key.
NOTE: The bezel key is attached to the LCD bezel package.
2.Align and insert the right end of the bezel onto the system .
3.Press the release button and fit the left end of the bezel onto the system.
4.Lock the bezel by using the key.
System cover
Removing system cover
Prerequisites
1.Turn off the system, including any attached peripherals.
2.Disconnect the system from the electrical outlet and disconnect the peripherals.
Steps
1. Using a flat head screwdriver, rotate the latch release lock counter clockwise to the unlocked position.
Disassembly and reassembly |
29 |
2.Lift the latch till the system cover slides back and the tabs on the system cover disengage from the slots on the system.
3.Hold the cover on both sides, and lift the cover away from the system.
Installing system cover
Prerequisites
1. Ensure that all internal cables are routed correctly and connected, and no tools or extra parts are left inside the system.
Steps
1.Align the tabs on the system cover with the slots on the system.
2.Push the system cover latch down.
3.Using a flat head screwdriver, rotate the latch release lock clockwise to the locked position.
Next steps
1.Reconnect the peripherals and connect the system to the electrical outlet.
2.Turn on the system, including any attached peripherals.
Optical drive
Removing optical drive
Prerequisites
1.If installed, remove the front bezel.
2.Remove the system cover.
Steps
1.Disconnect the optical drive cable from the optical drive.
2.Press the blue latch and slide the optical drive from the system.
30 Disassembly and reassembly
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