Supermicro H12SSW-NT, H12SSW-IN User Manual

H12SSW-iN

H12SSW-NT

USER’S MANUAL

Revision 1.0

The information in this User’s Manual has been carefully reviewed and is believed to be accurate. The vendor assumes

!

no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update
or to keep current the information in this manual, or to notify any person or organization of the updates. Please Note:

For the most up-to-date version of this manual, please see our website at www.supermicro.com.

Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product described in this manual
at any time and without notice. This product, including software and documentation, is the property of Supermicro and/
or its licensors, and is supplied only under a license. Any use or reproduction of this product is not allowed, except
as expressly permitted by the terms of said license.

IN NO EVENT WILL Super Micro Computer, Inc. BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT
OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER
MICRO COMPUTER, INC. SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED
OR USED WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,
INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in the
State of California, USA. The State of California, County of Santa Clara shall be the exclusive venue for the resolution
of any such disputes. Supermicro's total liability for all claims will not exceed the price paid for the hardware product.

FCC Statement: 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 manufacturer’s instruction manual,
may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your own expense.

California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only
to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate Material-special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate”.

WARNING: This product can expose you to chemicals including
lead, known to the State of California to ca use cancer and birth
defects or other reproductive harm. For more information, go
to www.P65Warnings.ca.gov.

The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment,
nuclear facilities or systems, aircraft, aircraft devices, aircraft/emergency communication devices or other critical

systems whose failure to perform be reasonably expected to result in signicant injury or loss of life or catastrophic

property damage. Accordingly, Supermicro disclaims any and all liability, and should buyer use or sell such products
for use in such ultra-hazardous applications, it does so entirely at its own risk. Furthermore, buyer agrees to fully
indemnify, defend and hold Supermicro harmless for and against any and all claims, demands, actions, litigation, and
proceedings of any kind arising out of or related to such ultra-hazardous use or sale.

Manual Revision 1.0

Release Date: June 27, 2019

Unless you request and receive written permission from Super Micro Computer, Inc., you may not copy any part of this

document. Information in this document is subject to change without notice. Other products and companies referred

to herein are trademarks or registered trademarks of their respective companies or mark holders.

Copyright © 2019 by Super Micro Computer, Inc.
All rights reserved.

Printed in the United States of America

Preface

Preface

About This Manual

This manual is written for system integrators, IT technicians and knowledgeable end users.
It provides information for the installation and use of the H12SSW-iN/NT motherboard.

About This Motherboard

Built upon the functionality and capability of the AMD EPYC® 7002 series processor, the
H12SSW-iN/NT motherboard provides a high performance, expandable solution while
consuming little power. Please note that this motherboard is intended to be installed and
serviced by professional technicians only. For processor/memory updates, please refer to
our website at http://www.supermicro.com/products/.

Conventions Used in the Manual

Special attention should be given to the following symbols for proper installation and to prevent

damage done to the components or injury to yourself:

Warning! Indicates important information given to prevent equipment/property damage

or personal injury.

Warning! Indicates high voltage may be encountered when performing a procedure.

3

H12SSW-iN/NT Motherboard User's Manual

Contacting Supermicro

Headquarters

Address: Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

Website: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

[e-mail] (Customer Support)

Website: www.supermicro.nl

Asia-Pacic

Address: Super Micro Computer, Inc.

3F, No. 150, Jian 1st Rd.

Zhonghe Dist., New Taipei City 235

Taiwan (R.O.C)

Tel: [phone]

Fax: [phone]

Email: [e-mail]

Website: www.supermicro.com.tw

4

Preface

Table of Contents

Chapter 1 Introduction

1.1 Checklist ...............................................................................................................................8

1.1 Quick Reference .................................................................................................................11

Quick Reference Table ......................................................................................................12

Motherboard Features .......................................................................................................14

1.2 Processor and Chipset Overview .......................................................................................17

1.3 Special Features ................................................................................................................17

Recovery from AC Power Loss .........................................................................................17

1.4 System Health Monitoring ..................................................................................................17

Onboard Voltage Monitors ................................................................................................18

Fan Status Monitor with Firmware Control .......................................................................18

Environmental Temperature Control .................................................................................18

System Resource Alert......................................................................................................18

1.5 ACPI Features ....................................................................................................................18

1.6 Power Supply .....................................................................................................................19

1.7 Super I/O ............................................................................................................................19

Chapter 2 Installation

2.1 Static-Sensitive Devices .....................................................................................................20

Precautions .......................................................................................................................20

Unpacking .........................................................................................................................20

2.2 Motherboard Installation .....................................................................................................21

Location of Mounting Holes ..............................................................................................21

Installing the Motherboard.................................................................................................23

2.3 Processor and Heatsink Installation ...................................................................................24

2.4 Memory Support and Installation .......................................................................................31

Memory Support ............................................................................................................31

DIMM Module Population ..................................................................................................32

DIMM Installation ..............................................................................................................33

DIMM Removal .................................................................................................................33

2.5 Rear I/O Ports ....................................................................................................................34

2.6 Front Control Panel ...........................................................................................................36

5

H12SSW-iN/NT Motherboard User's Manual

Front Control Panel Pin Denitions ...................................................................................37

2.7 Connectors .........................................................................................................................40

2.8 Jumper Settings .................................................................................................................45

How Jumpers Work ...........................................................................................................45

2.9 LED Indicators ....................................................................................................................47

Chapter 3 Troubleshooting

3.1 Troubleshooting Procedures ..............................................................................................49

Before Power On ..............................................................................................................49

No Power ..........................................................................................................................49

No Video ...........................................................................................................................50

System Boot Failure ..........................................................................................................50

Memory Errors ..................................................................................................................50

When the System Keeps Losing its Setup Conguration .................................................50

When the System Becomes Unstable ..............................................................................51

3.2 Technical Support Procedures ...........................................................................................52

3.3 Frequently Asked Questions ..............................................................................................53

3.4 Returning Merchandise for Service ....................................................................................55

Battery Removal ................................................................................................................56

Proper Battery Disposal ....................................................................................................56

Battery Installation .............................................................................................................56

Chapter 4 UEFI BIOS

4.1 Introduction .........................................................................................................................57

Starting the Setup Utility ...................................................................................................57

4.2 Main Setup .........................................................................................................................58

4.3 Advanced ............................................................................................................................60

4.4 IPMI ....................................................................................................................................78

4.5 Event Logs .........................................................................................................................81

4.6 Security ...............................................................................................................................83

4.7 Boot ....................................................................................................................................86

4.8 Save & Exit .........................................................................................................................88

6

Preface

Appendix A Software Installation

A.1 Installing Software Programs .............................................................................................90

®

A.2 SuperDoctor

5 ...................................................................................................................91

Appendix B Standardized Warning Statements

B.1 Battery Handling .................................................................................................................92

B.2 Product Disposal .................................................................................................................94

Appendix C UEFI BIOS Recovery

C.1 Overview .............................................................................................................................95

C.2 Recovering the UEFI BIOS Image .....................................................................................95

C.3 Recovering the BIOS Block with a USB Device ................................................................95

7

H12SSW-iN/NT Motherboard User's Manual

Chapter 1

Introduction

Congratulations on purchasing your computer motherboard from an industry leader.
Supermicro motherboards are designed to provide you with the highest standards in quality
and performance.

In addition to the motherboard, several important parts that are included with the system are
listed below. If anything listed is damaged or missing, please contact your retailer.

1.1 Checklist

Main Parts List

Description Part Number Quantity

Supermicro motherboard-H12SSW-iN or H12SSW-NT

Slimline SAS x8 (LA) to SATA Cable CBL-SAST-0813 2

MBD-H12SSW-IN-P or
MBD-H12SSW-NT-P

1

Important Links

For your system to work properly, please follow the links below to download all necessary
drivers/utilities and the user’s manual for your server.

• Supermicro product manuals: https://www.supermicro.com/support/manuals/

• Product drivers and utilities: https://www.supermicro.com/wftp/driver/

• Product safety info: https://www.supermicro.com/about/policies/safety_information.cfm

• If you have any questions, please contact our support team at: [e-mail]

This manual may be periodically updated without notice. Please check the Supermicro website
for possible updates to the manual revision level.

8

Chapter 1: Introduction

Figure 1-1. H12SSW-iN/NT Image

Note: All graphics shown in this manual were based upon the latest PCB revision available

at the time of publication of the manual. The motherboard you received may or may not look
exactly the same as the graphics shown in this manual.

9

H12SSW-iN/NT Motherboard User's Manual

JSXB1C

NVME2/3

SATA0-7

JSXB2

SXB1A

JSXB1A

JSXB1B

SXB1B: PCI-E 4.0 X16 + X16

IPMI CODE

+

CPU_PORT1A

JHDT1

J19

JVRM1

MEGERAC LICENSE

SXB1C

USB5/6(3.0)

JSLIM2

MH9

DIMMC1

DIMMD1

CPU_PORT2A

JBT1

CMOS CLEAR

DIMMB1

DIMMA1

UID-SW

1-2:NORMAL

2-3:BIOS RECOVERY

JDB1

SXB2: PCI-E 4.0 X16

CPU_PORT1C

BT1

BATTERY

1-2:RST

2-3:NMI

MH15

MH6

UID-LED

LED1

JOH1

JWD1:WATCH DOG

:OH-LED

JDB2

+

JUART2

JWD1

JDB1

JUART3

MH4

VGA

H12SSW-iN

MAC CODE

BAR CODE

MH17

LAN2

JPG1:VGA
1-2:ENABLE
2-3:DISABLE

JPB1

1

3

JPB1:BMC
1-2:ENABLE
2-3:DISABLE

CPU

JPG1

LAN1

USB2/3

(3.0)

USB0/1

(3.0)

IPMI_LAN

JUSBRJ45

BMC

M.2-HC2

CPU PCI_E 4.0 X2

CPU PCI-E 4.0 X4/X2

M.2-HC1

1-2:ENABLE

2-3:DISABLE

JNCSI1

LED13

COM1

JCOM1

JPL1/LAN

JPL1

M.2-HC2 ACT

LED12

M.2-HC2 ERR

M.2-HC1 ACT

LED10

1

+

M.2-HC1 ERR

LED11

1

JFPGA_SW1

SUPERDOM

SATA17

JCPLD1

USB4(3.0)

JUSBA1

JSLIM3

NVME4/5

B1

SATA8-15

7

4

159

JPWR1

JSD2

1

3

BUZZER

1 2 3

1

2

3

4

2

JIPMB1

A

8

C

LED6

SATA16

1

JSD1

3

1

2

JTPM1

2

1

JF1

FAN6

JSLIM1

NVME0/1

JL1

FAN5

FAN4

MH8

Figure 1-2. H12SSW-iN/NT Layout

10

FAN3

DIMMF1

DIMME1

JPWR2

DIMMG1

DIMMH1

FAN2

FAN1

1

5

1.1 Quick Reference

Chapter 1: Introduction

SXB1A

SXB2

SXB1B

SXB1C

USB 5/6 (3.0)

NVME 2/3

SATA 0-7

LED 1

JSXB1C

NVME2/3

SATA0-7

JSXB2

SXB1A

JSXB1A

JSXB1B

SXB1B: PCI-E 4.0 X16 + X16

IPMI CODE

+

CPU_PORT1A

JHDT1

CPU_PORT2A

JBT1

CMOS CLEAR

J19

SXB1C

USB5/6(3.0)

JSLIM2

JVRM1

MH9

DIMMB1

DIMMC1

DIMMD1

DIMMA1

MEGERAC LICENSE

JSLIM1

UID SW

UID-SW

1-2:NORMAL

2-3:BIOS RECOVERY

JDB1

SXB2: PCI-E 4.0 X16

CPU_PORT1C

BT1

BATTERY

BATTERY

1-2:RST

2-3:NMI

JBT1

MH15

MH6

JOH1

UID-LED

LED1

JOH1

JWD1:WATCH DOG

:OH-LED

JDB1

JDB2

+

JUART2

JWD1

JWD1

JUART3

MH4

VGA

VGA

JPB1

BAR CODE

H12SSW-iN

MAC CODE

LAN 2

LAN2

1-2:ENABLE
2-3:DISABLE

MH17

CPU

JPG1:VGA

JPB1

1

3

JPB1:BMC
1-2:ENABLE
2-3:DISABLE

LAN 1

LAN1

JPG1

USB 2/3

USB 0/1

USB2/3

(3.0)

IPMI LAN

BMC

JPG1

M.2-C2

M.2-C1

USB0/1

(3.0)

IPMI_LAN

JUSBRJ45

M.2-HC2

CPU PCI_E 4.0 X2

CPU PCI-E 4.0 X4/X2

M.2-HC1

1-2:ENABLE

2-3:DISABLE

JNCSI1

LED13

COM1

COM1

JCOM1

JPL1/LAN

JPL1

M.2-HC2 ACT

LED12

M.2-HC2 ERR

M.2-HC1 ACT

LED10

1

+

M.2-HC1 ERR

LED11

1

JFPGA_SW1

SUPERDOM

SATA17

JCPLD1

USB4(3.0)

JUSBA1

JSLIM3

NVME4/5

B1

SATA8-15

4

159

JPWR1

JPWR2

7

JSD2

1

3

BUZZER

1 2 3

2

JIPMB1

A

8

C

LED6

SATA16

1

3

1

2

1

JF1

JPL1

1

2

3

COM2

4

SATA 0
SATA 1

JSD1

2

JTPM1

TPM/PORT80

USB 4 (3.0)

BUZZER

NVME 4/5

SATA 8-15

LED 6

JSD1
JSD2

JF1

JPWR1

JPWR2

JIPMB1

JCPLD1

LED 12

LED 11

NVME 0/1

FAN 6

JL1

FAN6

NVME0/1

JL1

FAN 5

DIMMG1

DIMMF1

DIMME1

DIMMH1

1

PWRI2C

5

FAN2

FAN1

FAN 1

FAN4

FAN5

MH8

FAN 4

FAN3

FAN 3

FAN 2

Notes:

• See Chapter 2 for detailed information on jumpers, I/O ports, and JF1 front panel

connections.

• Jumpers/LED indicators not indicated are used for testing only.

• Use only the correct type of onboard CMOS battery as specied by the manufacturer. Do

not install the onboard battery upside down to avoid possible explosion.

11

H12SSW-iN/NT Motherboard User's Manual

Quick Reference Table

Jumper Description Default Setting

UID SW Unit ID switch (push-button toggle switch ON/OFF) Off

JBT1 Clear CMOS Open (Normal)

JWD1 Watch Dog Timer control Pins 1-2 (Reset)

JPL1 LAN Enable/Disable (H12SSW-NT only) Pins 1-2 (Enabled)

JPG1 Onboard Video Disable/Enable Pins 1-2 (Enabled)

LED Description Status

LED1 UID LED Blue: UID Activated

LED6 Power LED On: Power On

LED 7 BMC Heartbeat Blinking: BMC Normal/Working

LED12 M.2-C2 Interface Detection On: SATA Off: PCI-E

LED11 M.2-C1 Interface Detection On: SATA Off: PCI-E

Connector Description

Battery (BT1) Onboard CMOS battery

COM 1, COM 2 Rear panel COM port #1, Header for COM port #2

JCPLD1 Complex-Programmable Logical Device (CPLD) header

FAN 1~6 System cooling fan headers

JF1 Front control panel

JSD1, JSD2 SATA DOM power connector

JTPM1 Trusted Platform Module (TPM)/Port 80 connector

SATA0, SATA1 Internal SATA Ports

JL1 Chassis intrusion header

JOH1 Chassis overheat header

USB 0/1 (3.0) Back panel USB 3.0 ports (USB 0/1)

USB 2/3 (3.0) Back panel USB 3.0 ports (USB 2/3)

USB 4 (3.0) USB 3.0 type A port (USB 4)

USB 5/6 (3.0) Internal USB 3.0 header (USB 5/6)

SXB1A, SXB2, SXB1C Riser slots

JPWR2 24-pin ATX power supply connector

JPWR1 12V 8-pin ATX CPU power connector

Note: The table above is continued on the next page.

12

Chapter 1: Introduction

Connector Description

M.2-C1, M.2-C2 M.2 Slots

PWRI2C Power supply SMBus I2C header

JIPMB1 4-pin External BMC I2C Header (for an IPMI Card)

LAN1, LAN2 Back panel LAN1, LAN2 connectors

VGA Back panel VGA port

NVMe0~5 NVMe slots 0~5

Note: Jumpers, connectors, switches, and LED indicators that are not described in the
preceding tables are for manufacturing testing purposes only, and are not covered in this
manual.

13

H12SSW-iN/NT Motherboard User's Manual

Motherboard Features

CPU

•

Single AMD EPYC® 7002 series processor, in one SP3 socket

Memory

•

Up to two TB of ECC DDR4 3200 MHz speed, RDIMM/LRDIMM/3DS/NVDIMM memory in eight slots

DIMM Size

• Up to 128GB size at 1.2V

Chipset

•

System on Chip

Features

Expansion Slots

•

1x PCI-E 4.0 (x32) Left Riser Slot

• 1x PCI-E 4.0 (x16) Right Riser Slot

• M.2 Interface: 2x PCI-E 4.0 x2/SATA.

• M.2 Form Factor: 2280, 22110

• M.2 Key: M-Key

Network

•

ATEN IPMI from ASPEED AST 2500 BMC for gigabit RJ45 port

• Two RJ45 1GbE LAN ports, H12SSW-iN(1GbE Broadcom 5720L); H12SSW-NT(10GbE Broadcom 57416)

Graphics

•

ASPEED AST2500 BMC chip with one VGA port

I/O Devices

•

One COM RS-232 type connector

• One COM header

• Six USB 3.0 headers

• One USB 3.0 Type A connector

Peripheral Devices

•

Two native NVMe Ports (SlimSAS x8); Four internal NVMe or sixteen SATA dual use ports (SlimSAS x8)

• Two SATA DOM ports

BIOS

•

128Mb SPI AMI BIOS®

• ACPI 6.2, SMBIOS 3.1.1, Plug-and-Play (PnP), BIOS rescue hot-key, RTC (Real Time Clock) wake up, Riser Card Auto-

Detection Support

Note: The table above is continued on the next page.

14

Features

Power Management

•

ACPI power management (S5)

• Power button override mechanism

• Power-on mode for AC power recovery

System Health Monitoring

•

Onboard voltage monitoring for +1.8V, 3.3V, +5V, +12V, +3.3V Standby, +5V Standby, VBAT, HT, Memory

• Onboard monitoring for CPU, system, and memory temperature

• CPU switching phase voltage regulator

• CPU Thermal Trip support

Fan Control

•

Single cooling zone

• Low-noise fan speed control

• Pulse Width Modulation (PWM) fan control

System Management

•

Trusted Platform Module (TPM) support

• System resource alert via SuperDoctor® 5

• SuperDoctor® 5, Watch Dog

• Non-Maskable Interrupt (NMI)

• SUM-InBand, SUM-OOB, IPMICFG, IPMIVIew, SMCIPMITOOL

Chapter 1: Introduction

LED Indicators

Power State Indicator

•

• CPU/Overheating

• Fan Failure

• LAN activity

• UID / Remote UID

Dimensions

•

8" (L) x 13" (W), 20.32cm (L) x 33.02cm (W)

15

H12SSW-iN/NT Motherboard User's Manual

5

4

3

2

1

J5 J6 J7 J8J1J2J3J4

H12SSW AMD SP3 Rome Rev. 1.00

SXB2

CPU

E

DDR4 DIMM

A

DDR4 DIMM

DDR4 DIMM

DDR4 DIMM

DDR4 DIMM

DDR4 DIMM

DDR4 DIMM

USB3.0
Type A

DDR4 DIMM

F

G

H

B

C

D

G2[3:0] / SATA[23:20] G3[3:0] / SATA[33:30]

G3[7:4] / SATA[37:34]

P0 [1:0]

M.2 Conn
M key

BCM57416

(co-lay BCM5720L)

P0 [15:8]

EPYC Rome Processor

USB_1_SS_2TX / USB_1_HSD2

USB 3.0

front panel

P2 [15:0]

P3[15:0]

SXB1

10Gb LAN
RJ45

10Gb LAN
RJ45

COM1

MLAN

LAN1USB3.0 X 2

ID SW

Rear I/O

+

VGA

USB3.0 X 2

LAN2

ID LED

Slim SAS
x8

G2[7:4] / SATA[27:24]

G1[3:0]

G1[7:4]

USB_0_SS_0TX / USB_0_HSD0

USB_1_SS_3TX / USB_1_HSD3

JSLIM2

JSLIM1

RX 0-7RX 15-8

TX 0-7TX 15-8

RX 0-15 TX 0-15

TX 0-15 RX 0-15

re-driver

re-driver

U74

U78

J17

Slim SAS
x8

Slim SAS
x8

JSLIM3

ASM1061

SATA controller

SATA0

SATA1

P1[15:0]

re-driver

re-driver

U79

U80

ASM1042

USB controller

ASM1042

USB controller

BMC
AST2500

P0 [6]

Rear

USB 3.0

X 2

VGA

USB_0_HSD1

COM1

PHY
RTL8211F

DDR4

BMC ROM
32MB

LPC

TPM

BIOS ROM
32 MB

MUX

SPI

SPI

IPMI LAN
RJ45

Rear

USB 3.0

X 2

P0 [4]

P0 [5]

M.2 Conn
M key

J34

MUX

P0 [3:2]

P0 [7]

UPER

S

®

980 Rock Ave., San Jose CA, 95131
TEL : [phone]

CONFIDENTIAL - DO NOT DUPLICATE

UPER

S

®

980 Rock Ave., San Jose CA, 95131
TEL : [phone]

CONFIDENTIAL - DO NOT DUPLICATE

UPER

S

®

980 Rock Ave., San Jose CA, 95131
TEL : [phone]

CONFIDENTIAL - DO NOT DUPLICATE

Note: This is a general block diagram and may not exactly represent the features on your

motherboard. See the previous pages for the actual specications of your motherboard.

Figure 1-3. System Block Diagram

16

Chapter 1: Introduction

1.2 Processor and Chipset Overview

The H12SSW-iN/NT motherboard offers maximum I/O expandability, energy efciency, and

data reliability in a 7-nm process architecture. It is optimized for high-performance computing,
NVMe storage solutions, and ideal for High Density Data Center applications.

The H12SSW-iN/NT supports the new 7 nm microarchitecture process technology, which

signicantly increases system performance for a multitude of server applications.

The AMD EPYC® 7002 series processor supports the following features:

• ACPI Power Management Logic Support Rev. 6.2

• Adaptive Thermal Management/Monitoring

• PCI-E 4.0 w/transfer rates of up to 16 Gb/s

• SATA 3.0 w/transfer rates of up to 6 Gb/s

• System Management Bus (SMBus) Specication Version 2.0

1.3 Special Features

This section describes the health monitoring features of the H12SSW-iN/NT. The motherboard
has an onboard System Hardware Monitor chip that supports system health monitoring.

Recovery from AC Power Loss

The Basic I/O System (BIOS) provides a setting that determines how the system will respond
when AC power is lost and then restored to the system. You can choose for the system to
remain powered off (in which case you must press the power switch to turn it back on), or
for it to automatically return to the power-on state. See the Advanced BIOS Setup section
for this setting. The default setting is Last State.

1.4 System Health Monitoring

This section describes the health monitoring features of the H12SSW-iN/NT motherboard. The
motherboard has an onboard Baseboard Management Controller (BMC) chip that supports
system health monitoring. Once a voltage becomes unstable, a warning is given or an error

message is sent to the screen. The user can adjust the voltage thresholds to dene the

sensitivity of the voltage monitor.

17

H12SSW-iN/NT Motherboard User's Manual

Onboard Voltage Monitors

The onboard voltage monitor will continuously scan crucial voltage levels. Once a voltage
becomes unstable, it will give a warning or send an error message to the screen. Users can

adjust the voltage thresholds to dene the sensitivity of the voltage monitor. Real time readings

of these voltage levels are all displayed in BMC.

Fan Status Monitor with Firmware Control

Users can check the RPM status of the cooling fans through the IPMI Web interface. The
chassis fans are controlled by Thermal Management.

Environmental Temperature Control

The thermal control sensor monitors the CPU temperature in real time and will turn on the

thermal control fan whenever the CPU temperature exceeds a user-dened threshold. The

overheat circuitry runs independently from the CPU. Once the thermal sensor detects that
the CPU temperature is too high, it will automatically turn on the thermal fans to prevent the
CPU from overheating. The onboard chassis thermal circuitry can monitor the overall system
temperature and alert the user when the chassis temperature is too high.

Note: To avoid possible system overheating, please be sure to provide adequate airow to

your system.

System Resource Alert

This feature is available when used with SuperDoctor 5®. SuperDoctor 5 is used to notify the

user of certain system events. For example, you can congure SuperDoctor 5 to provide you

with warnings when the system temperature, CPU temperatures, voltages and fan speeds

go beyond a predened range.

1.5 ACPI Features

ACPI stands for Advanced Conguration and Power Interface. The ACPI specication denes
a exible and abstract hardware interface that provides a standard way to integrate power

management features throughout a computer system including its hardware, operating system
and application software. This enables the system to automatically turn on and off peripherals
such as network cards, hard disk drives and printers.

In addition to enabling operating system-directed power management, ACPI also provides a
generic system event mechanism for Plug and Play and an operating system-independent

interface for conguration control. ACPI leverages the Plug and Play BIOS data structures

while providing a processor architecture-independent implementation that is compatible with
Windows 2016 and 2019 operating systems.

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Chapter 1: Introduction

1.6 Power Supply

As with all computer products, a stable power source is necessary for proper and reliable
operation. It is even more important for processors that have high CPU clock rates. In areas

where noisy power transmission is present, you may choose to install a line lter to shield

the computer from noise. It is recommended that you also install a power surge protector to
help avoid problems caused by power surges.

1.7 Super I/O

The ASpeed AST2500 Super I/O provides one high-speed, 16550 compatible Universal
Asynchronous Receiver/Transmitter (UART), which support serial infrared communications.
This UART includes a send/receive FIFO, a programmable baud rate generator, complete
modem control capability and a processor interrupt system. This UART provides legacy speed
with baud rate of up to 115.2 Kbps as well as an advanced speed with baud rates of 250 K,
500 K, or 1 Mb/s, which support higher speed modems.

The Super I/O provides functions that comply with ACPI (Advanced Conguration and Power

Interface), which includes support of legacy and ACPI power management through the System
Management Interrupt (SMI) or System Control Interrupt (SCI). It also features auto power
management to reduce power consumption.

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H12SSW-iN/NT Motherboard User's Manual

Chapter 2

Installation

2.1 Static-Sensitive Devices

Electrostatic Discharge (ESD) can damage electronic com ponents. To prevent damage to your
motherboard, it is important to handle it very carefully. The following measures are generally

sufcient to protect your equipment from ESD.

Precautions

•

Use a grounded wrist strap designed to prevent static discharge.

• Touch a grounded metal object before removing the board from the antistatic bag.

• Handle the board by its edges only; do not touch its components, peripheral chips, memory

modules or gold contacts.

• When handling chips or modules, avoid touching their pins.

• Put the motherboard and peripherals back into their antistatic bags when not in use.

• For grounding purposes, make sure that your chassis provides excellent conductivity be-

tween the power supply, the case, the mounting fasteners and the motherboard.

• Use only the correct type of CMOS onboard battery as specied by the manufacturer. Do

not install the CMOS battery upside down, which may result in a possible explosion.

Unpacking

The motherboard is shipped in antistatic packaging to avoid static damage. When unpacking
the motherboard, make sure that the person handling it is static protected.

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Chapter 2: Installation

2.2 Motherboard Installation

All motherboards have standard mounting holes to t different types of chassis. Make sure

that the locations of all the mounting holes for both the motherboard and the chassis match.
Although a chassis may have both plastic and metal mounting fasteners, metal ones are
highly recommended because they ground the motherboard to the chassis. Make sure that
the metal standoffs click in or are screwed in tightly.

Phillips

Screwdriver (1)

Phillips Screws

Tools Needed

Standoffs

(Only if needed)

Location of Mounting Holes

Notes:

1. To avoid damaging the motherboard and its components, please do not use a force
greater than 8 lb/inch on each mounting screw during motherboard installation.

2. Some components are very close to the mounting holes. Please take precautionary
measures to avoid damaging these components when installing the motherboard to the
chassis.

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H12SSW-iN/NT Motherboard User's Manual

Figure 2-1. Motherboard Mounting Holes

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Chapter 2: Installation

Installing the Motherboard

1. Install the I/O shield into the back of the chassis.

2. Locate the mounting holes on the motherboard. See the previous page for the locations.

3. Locate the matching mounting holes on the chassis. Align the mounting holes on the
motherboard with the mounting holes on the chassis.

4. Install standoffs in the chassis as needed.

5. Install the motherboard into the chassis carefully to avoid damaging other motherboard
components.

6. Using the Phillips screwdriver, insert a Phillips head #6 screw into a mounting hole on
the motherboard and its matching mounting hole on the chassis.

7. Repeat Step 5 to insert #6 screws into all mounting holes.

8. Make sure that the motherboard is securely placed in the chassis.

Note: Images displayed are for illustration only. Your chassis or components might look
different from those shown in this manual.

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H12SSW-iN/NT Motherboard User's Manual

2.3 Processor and Heatsink Installation

Warning: When handling the processor package, avoid placing direct pressure on the label

area of the fan.

Important:

• For the Processor/Heatsink installation you need to use a T20 screwdriver when opening/

closing the CPU socket.

• Always connect the power cord last, and always remove it before adding, removing or

changing any hardware components. Make sure that you install the processor into the
CPU socket before you install the CPU heatsink.

• If you buy a CPU separately, make sure that you use an AMD-certied heatsink only. Make

sure to install the motherboard into the chassis before you install the CPU heatsink.

• When receiving a motherboard without a processor pre-installed, make sure that the plastic

CPU socket cap is in place and none of the socket pins are bent; otherwise, contact your
retailer immediately.

• Refer to the Supermicro website for updates on CPU support.

Installing the Processor and Heatsink

1. Unscrew the screws holding down Force Frame in the sequence of 3-2-1. The screws
are numbered on the force frame next to each screw hole.

Screw #3

Screw #1

Screw #2

Force Frame

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Chapter 2: Installation

2. The spring-loaded force frame will raise up after the last screw securing it (#1) is
removed. Gently allow it to lift up to its stopping position.

3. Lift the rail frame up by gripping the lift tabs near the front end of the rail frame. While
keeping a secure grip of the rail frame, lift it to a position so you can do the next step of
removing the external cap.

Note: The rail frame is spring loaded, so keep a secure grip on it as you lift it so it does
not snap up.

Rail Frame

PnP Cover Cap

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H12SSW-iN/NT Motherboard User's Manual

4. Remove the external cap from the Rail Frame by pulling it upwards through the rail
guides on the rail frame.

External Cap

PnP Cover Cap

5. The CPU package is shipped from the factory with the blue carrier frame pre-assembled.
Grip the handle of the carrier frame/CPU package assembly from its shipping tray, and

while gripping the handle, align the anges of the carrier frame onto the rails of the rail

frame so its pins will be at the bottom when the rail frame is lowered later.

6. Slide the carrier frame/CPU package downwards to the bottom of the rail frame. Ensure

the anges are secure on the rails as you lower it downwards.

Carrier Frame/

CPU Package

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Chapter 2: Installation

Note: You can only install the CPU inside the socket in one direction with the handle at the
top. Make sure that it is properly inserted into the CPU socket before closing the rail frame
plate. If it doesn't close properly, do not force it as it may damage your CPU. Instead, open
the rail frame plate again, and double-check that the CPU is aligned properly.

7. Lift up the rail frame till it securely rests in upright position. Then remove the PnP cover
cap from the CPU socket below. Grip the two lift tabs marked "Remove" at the middle of
the cap and pull vertically upwards to remove the PnP cover cap.

Warning! The exposed socket contacts are extremely vulnerable and can be damaged easily.
Do not touch or drop objects onto the contacts and be careful removing the PnP cover cap and
when placing the rail frame over the socket.

8. Gently lower the rail frame down onto the socket until the latches on the rail frame
engage with the socket housing and it rests in place. DO NOT force it into place!

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H12SSW-iN/NT Motherboard User's Manual

9. Gently lower the force frame down onto the rail frame and hold it in place until it is
seated in the Socket housing. Note that the force frame is spring loaded and has to be

held in place before it is secured. Important: Use a torque screwdriver, set it at 16.1

kgf-cm (14.0 lbf-in) with a Torx T20 screw head bit, to prevent damage to the CPU.

10. Place and re-screw the screws in the reverse order to the way you removed them

(holes 1-2-3 in order). When nished, the force frame will be secure over both the rail

frame and CPU package.

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Chapter 2: Installation

11. After the force frame is secured and the CPU package is in place, now you must install
the heatsink to the frame. Lower the heatsink down till it rests securely over the four
screw holes on CPU package on the socket frame.

12. Using a diagonal pattern, tighten the four screws down on the heatsink in a clockwise

fashion till it is secure. The heatsink will now be secured and you have nished installing

the processor and heatsink onto the motherboard. Repeat this procedure for any
remaining CPU sockets on the motherboard.

#1 Screw

#3 Screw

#4 Screw

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#2 Screw

H12SSW-iN/NT Motherboard User's Manual

Uninstalling the Processor and Heatsink

1. Remove the heatsink attached to the top of the CPU package by reversing the
installation procedure.

2. Clean the Thermal grease left by the heatsink on the CPU package lid to limit the risk of
it contaminating the CPU package land pads or contacts in the socket housing.

3. Reverse the procedure for installing the force frame onto the socket, unscrewing the
plate in the 3-2-1 screw order and lift the force frame to the vertical position.

4. Lift the rail frame using the lift tabs near the front end of the rail frame. Note that the rail
frame is spring loaded, so be careful lifting it up into a vertical position.

5. Grip the handle of the carrier frame and pull upwards to extract it from the rail frame.
Return the carrier frame/CPU package to its original shipping container.

6. Grip the handle on the external cap and return it to the rail frame sliding it downwards
till it rests in the frame.

7. Gripping the rail frame, rotate it downwards till it rests above and locks over the socket
housing in its horizontal position.

8. Push and rotate down the force frame till it is over the external cap and rail frame into a
horizontal position.

9. While holding down the force frame, secure it back to the socket frame by securing
screw 1 in place. Note that without a CPU package in place, it is not necessary to
tighten down screws 2 and 3 at this time.

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