MSI G3101 User manual

G3101
MS-S238
Server System
User Guide

2Contents
Revision
V1.1, 2023/07
Contents
Regulatory Notices....................................................................................................... 3
Safety Information ......................................................................................................... 5
System Overview .......................................................................................................... 6
MS-S238.................................................................................................................. 6
System Specifications .................................................................................................. 9
Motherboard Connector ............................................................................................ 10
Motherboard Jumper................................................................................................. 14
Getting Started............................................................................................................ 15
Necessary Tools ................................................................................................... 15
Safety Precautions................................................................................................ 15
System Setup.............................................................................................................. 16
CPU.............................................................................................................................. 16
Memory ....................................................................................................................... 18
Supported Memory Population ............................................................................ 19
M.2 Key M (Optional)................................................................................................... 20
Hard Disk Drive (Optional) ......................................................................................... 21
Graphics Card (Optional)............................................................................................ 23
Air Cooler Module (Optional) ..................................................................................... 24
Water Cooler Module (Optional)................................................................................ 28

3
Regulatory Notices
Regulatory Notices
WEEE Statement
Under the European Union (“EU”) Directive on Waste Electrical and
Electronic Equipment, Directive 2012/19/EU, products of “electrical and
electronic equipment” cannot be discarded as municipal waste anymore
and manufacturers of covered electronic equipment will be obligated to
take back such products at the end of their useful life.
Chemical Substances Information
In compliance with chemical substances regulations, such as the EU REACH
Regulation (Regulation EC No. 1907/2006 of the European Parliament and the
Council), MSI provides the information of chemical substances in products at:
https://csr.msi.com/global/index
CE Conformity
Hereby, Micro-Star International CO., LTD declares that this device is in
compliance with the essential safety requirements and other relevant
provisions set out in the European Directive.
FCC-A Radio Frequency Interference 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 instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case
the user will be required to correct the interference at his own expense.
Notice 1
The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Notice 2
Shielded interface cables and AC power cord, if any, must be used in order to comply
with the emission limits.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
∙This device may not cause harmful interference, and
∙This device must accept any interference received, including interference that may
cause undesired operation.

4Regulatory Notices
Battery Information
Please take special precautions if this product comes with a battery.
∙Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer.
∙Avoid disposal of a battery into fire or a hot oven, or mechanically crushing or
cutting of a battery, which can result in an explosion.
∙Avoid leaving a battery in an extremely high temperature or extremely low air
pressure environment that can result in an explosion or the leakage of flammable
liquid or gas.
∙Do not ingest battery. If the coin/button cell battery is swallowed, it can cause
severe internal burns and can lead to death. Keep new and used batteries away
from children.
European Union:
Batteries, battery packs, and accumulators should not be disposed of as
unsorted household waste. Please use the public collection system to
return, recycle, or treat them in compliance with the local regulations.
BSMI:
廢電池請回收
For better environmental protection, waste batteries should be collected
separately for recycling or special disposal.
California, USA:
The button cell battery may contain perchlorate material and requires
special handling when recycled or disposed of in California.
For further information please visit:
http://www.dtsc.ca.gov/hazardouswaste/perchlorate/
Copyright and Trademarks Notice
Copyright © Micro-Star Int’l Co., Ltd. All rights reserved. The MSI logo used is
a registered trademark of Micro-Star Int’l Co., Ltd. All other marks and names
mentioned may be trademarks of their respective owners. No warranty as to accuracy
or completeness is expressed or implied. MSI reserves the right to make changes to
this document without prior notice.
Technical Support
If a problem arises with your product and no solution can be obtained from the user’s
manual, please contact your place of purchase or local distributor. Alternatively,
please visit https://www.msi.com/support/ for further guidance.

5
Safety Information
Safety Information
∙Always read the safety instructions carefully.
∙Keep this User’s Manual for future reference.
∙Keep this equipment away from humidity.
∙Lay this equipment on a reliable flat surface before setting it up.
∙The openings on the enclosure are for air convection hence protects the equipment
from overheating. Do not cover the openings.
∙Make sure the voltage of the power source and adjust properly before connecting
the equipment to the power inlet.
∙Place the power cord such a way that people can not step on it. Do not place
anything over the power cord.
∙Always unplug the power cord before inserting any add-on card or module.
∙All cautions and warnings on the equipment should be noted.
∙Never pour any liquid into the opening that could damage or cause electrical shock.
∙If any of the following situations arises, get the equipment checked by service
personnel:
∙The power cord or plug is damaged.
∙Liquid has penetrated into the equipment.
∙The equipment has been exposed to moisture.
∙The equipment does not work well or you can not get it work according to User’s
Manual.
∙The equipment has dropped and damaged.
∙The equipment has obvious sign of breakage.
∙Do not leave this equipment in an environment unconditioned, storage
temperature above 60°C (140°F), it may damage the equipment.

6System Overview
System Overview
MS-S238
6 x 2.5” SATA
Hot-Swap Drive Bays
44
66
77
88
991010 1111 1313
1212
11
22
33
55

7
System Overview
11System Power Button
22UID Button
33System Reset Button
44
HDD Activity LED
!
System Alarm LED
1
NIC Link LED
55
USB 2.0 Port
This connector is provided for USB peripheral devices. (Speed up to 480
Mbps)
⚠
Important
High-speed devices are recommended for USB 3.2 ports whereas low-speed
devices, such as mouse or keyboard, are suggested to be plugged into the
USB 2.0 ports.
668038 System Fans
77Power Supply Unit
88COM Port
99VGA Port
1010 UID LED
1111 USB 3.2 Gen 1 Port
This connector is provided for USB peripheral devices. (Speed up to 5 Gbps)

8System Overview
1212
GbE RJ45 Port (for Mgmt)
The standard RJ45 LAN jack is provided for connection to the Local Area
Network (LAN). You can connect a network cable to it.
LINK/ACT
LED
SPEED
LED
LED Status Description
Link/ Activity
LED
Off No link
Yellow Linked
Blinking Data activity
Speed LED
Off 10 Mbps/ No link
Orange 100 Mbps
Green 1 Gbps
1313
10 GbE RJ45 Port
The standard RJ45 LAN jack is provided for connection to the Local Area
Network (LAN). You can connect a network cable to it.
1 GbE
LINK/ACT
LED
SPEED
LED
LED Status Description
Link/ Activity
LED
Off No link
Yellow Linked
Blinking Data activity
Speed LED
Off 10 Mbps
Orange 100 Mbps
Green 1 Gbps
10 GbE
LINK/ACT
LED
SPEED
LED
LED Status Description
Link/ Activity
LED
Off No link
Yellow Linked
Blinking Data activity
Speed LED
Off 10 Mbps
Orange 1 Gbps
Green 10 Gbps
∙
Depending on LAN chip capability. X710-AT2 does not support 100Mbps.

9
System Specifications
System Specifications
Model G3101
Dimensions 3U, 17.2”W (438mm) x 5.2”H (131mm) x 17.7”D (450mm)
Processor Single AMD EPYC ™ 7002/ 7003 Series Processors, up to 64C, TDP 300W
Memory ∙8 x DDR4 Max 2933/ 3200 Mhz
-RDIMM/ LRDIMM/ 3DS up to 2TB
Networking ∙2 x 10 GbE RJ45 ports (Intel® X710AT2) w/ NCSI
Expansion Slots ∙4 x PCIe 4.0 x16 for GPGPU
∙3 x PCIe 4.0 x8
Internal Storage 2 x M.2 M-key (2280/ 22110)
Drive Bays 6 x 2.5" SATA Hot-swap drive bays
Server
Management
∙Aspeed AST2500 IPMI2.0 with iKVM
∙1 x GbE RJ45 Mgmt. port (Realtek RTL8211E-VB)
Cooling ∙1 x CPU air cooler module (240W) or 1 x CPU liquid cooler module (300W)
∙4 x 80mm x 38mm PWM Hot-swap fans
Power Supply CRPS 1+1 hot-plug redundant PSU
Environmental ∙Operating Temperature: 0°C ~ 35°C (40°C w/liquid cooling)
∙Non-operating Temperature: -20°C ~ 70°C
∙Non-operating Relative Humidity: 5% ~ 85% (non-condensing)
Accessory 1 x Slide Rail (Optional)
Certications CE, FCC (Class A)

10 Motherboard Connector
Motherboard Connector
JPWR1, JPWR2, JPWR3: Power Connector
1
4
85
JPWR2 1 GND 2 GND
3 GND 4 GND
5 +12V 6 +12V
7 +12V 8 +12V
1 12
13 24
JPWR3
1 P3V3 13 P3V3
2 P3V3 14 -12V
3 GND 15 GND
4 P5V 16 PS-ON#
5 GND 17 GND
6 P5V 18 GND
7 GND 19 GND
8 ATX_POK 20 -5V
9 5VSB 21 P5V
10 P12V 22 P5V
11 P12V 23 P5V
12 P3V3 24 GND
JPWR1
3
4
2 1
1 GND 2 GND
3P12V 4P12V

11
Motherboard Connector
CPU_FAN1: CPU Fan Power Connectors
SYS_FAN1 ~ SYS_FAN6: System Fan Power Connectors
JFP1: Front Panel Header
JCHASSIS1: Chassis Intrusion Header
JVGA1:VGA Box Header
14
SYS_FAN1~6
CPU_FAN1
1 GND 2 FAN POWER
3 FAN SENSE 4 FAN_PWM
2
1
JCI1
1 FM_INTRUDER_HDR_N 2 GND
Normal
(default)
Trigger the chassis
intrusion event
JFP1
1 23
2 24
1 PWR_LED+ 2 FP_PWR
3 NA 4 SYS_ID_LED+
5 PWR_LED- 6 SYS_ID_LED-
7 HDD_ACT_LED+ 8 SYS_FAULT_LED1-
9 HDD_ACT_LED- 10 SYS_FAULT_LED2-
11 PWR_BTN 12 NIC#1_ACT_LED+
13 PWR_BTN_GND 14 NIC#1_ACT_LED-
15 RST_BTN 16 SMB_SDA
17 RST_BTN_GND 18 SMB_SCL
19 SYS_ID_BTN 20 CHASSIS_INTRUSION
21 WIRE_TEMP_SENSOR 22 NIC#2_ACT_LED+
23 NMI_BTN 24 NIC#2_ACT_LED-
JVGA1
13 1
14 2
1 F_RED 2 SEL_FP_N
3 F_GRN 4 GND
5 F_BLU 6 GND
7 GND 8 F_VGA_5V
9 GND 10 DDCCLK
11 F_HS 12 F_VS
13 DDCDAT 14 NA

12 Motherboard Connector
JPMBUS1: PMBUS Box Header
IPMB1: IPMB Box Header
SOC_SMB: SOC SMB Box Header
JCOM2: COM Port Header
SGPIO Box Header: JSGPIO1
JPMBUS1
5 1
1 SMB_IPMB_STBY_LVC3_SCL
2 SMB_IPMB_STBY_LVC3_SDA
3 PMB_ALERT
4 GND
5 P3V3_AUX
JIPMB1
1
3
1 SMB_IPMB_DAT
2 GND
3 SMB_IPMB_CLK
SOC_SMB
1
3
1 P0_NVME6_SMBUS_DATA
2 GND
3 P0_NVME6_SMBUS_CLK
JCOM2
210
9
1
1 CONB_DCD 2 CONB_RXD
3 CONB_TXD 4 CONB_DTR
5 GND 6 CONB_DSR
7 CONB_RTS 8 CONB_CTS
9 CONB_RI 10 NA
JSGPIO1
17 1
18 2
1 SGPIO_BMC_CLK 2 2_5HD_SEL
3 SGPIO_BMC_LD_N 4 RST_PLTRST_N
5 SGPIO_BMC_DIN 6 GLOBAL_ACTIVE_N
7 SGPIO_BMC_DOUT 8 GND
9 JSGPIO_ID0 10 JSGPIO_ID1
11 BP_PRESENSE_1 12 BP_PRESENSE_2
13 BP_PRESENSE_3 14 BMC_SCL1
15 BMC_GPIO_RESET 16 BMC_SDA1
17 P3V3_AUX 18 NA

13
Motherboard Connector
BP_I2C_1: Backplane I2C Header
JUSB1: USB 3.2 Gen 1 Box Header
JTPM1: TPM Module Box Header
BP_I2C_1
1
4
1 VDD_5_DUAL 2 BP_I2C_CLK1
3 BP_I2C_DAT1 4 GND
20
19 1
2
JTPM1
1N/A 2P0_XLTR_LS_SPI_CS_L
3 P0_RSMRST_LS_L 4 NA
5GND 6 VDD_33_DUAL
7 P0_XLTR_LS_SPI_CLK 8 P0_ROM_SPI_WP_L
9 P0_ROM_SPI_HOLD_L 10 P0_XLTR_LS_SPI_MISO
11 NA 12 P0_XLTR_LS_SPI_MOSI
13 SPI_TPM_CS_LS_L 14 GND
15 VDD_33_DUAL 16 NA
17 IRQ_TPM_SPI_LS_N 18 VDD_33_DUAL
19 P0_RESET_LS_L 20 VDD_33_DUAL
1 10
1120
JFUSB1
1 P5V_AUX_USB_BP0 2 USB3_HEADER_P0_ESD_RX
3 USB3_HEADER_P0_ESD_RXP 4 GND
5 USB3_HEADER_P0_ESD_TXN 6 USB3_HEADER_P0_ESD_TXP
7 GND 8 USB2_P0_ESD_DN
9 USB2_P0_ESD_DP 10 NA
11 USB2_P1_ESD_DP 12 USB2_P1_ESD_DN
13 GND 14 USB3_HEADER_P1_ESD_TXP
15 USB3_HEADER_P1_ESD_TXN 16 GND
17 USB3_HEADER_P1_ESD_RXP 18 USB3_HEADER_P1_ESD_RXN
19 P5V_AUX_USB_BP5 20 NA

14 Motherboard Jumper
Motherboard Jumper
Jumper Name Default Setting Description
RTC_CLR2_1
1
1-2: BMC Control
2-3: Bypass BMC Control (default)

15
Getting Started
Getting Started
⚠
Important
All information is subject to change without prior notice.
Necessary Tools
Screwdriver Pliers Tweezers Anti-Static Gloves
Safety Precautions
The following precautions should be observed while handling the system:
∙Place the system on a flat and stable surface.
∙Do not place the system in environments subject to mist, smoke, vibration,
excessive dust, salty or greasy air, or other corrosive gases and fumes.
∙Do not drop or jolt the system.
∙Do not use another power adapter other than the one enclosed with the system.
∙Disconnect the power cord before performing any installation procedures on the
system.
∙Do not perform any maintenance with wet hands.
∙Prevent foreign substances, such as water, other liquids or chemicals, from
entering the system while performing installation procedures on the system.
∙Use a grounded wrist strap before handling system components such as CPU,
Memory, HDD, expansion cards, etc.
∙Place system components on a grounded antistatic pad or on the bed that came with
the components whenever the components are separated from the system.
⚠
Important
The system photos are provided for demonstration of system assembly only. The
internal view of your system may vary depending on the model you purchased.

16 System Setup
System Setup
⚠
Important
Before removing or installing any components, make sure the system is not turned on
or connected to the power.
CPU
When installing the CPU, make sure that you install cooler to prevent overheating. If
you do not have the CPU cooler, consult your dealer before turning on the computer.
∙
For the instruction of installing CPU cooler, please see Air Cooler Module (Optional)
or Water Cooler Module (Optional) chapter.
3
2
1
4
5
6
7
8
9
10
11
12
13

17
CPU
⚠
Important
∙ While replacing the CPU, always turn off the power supply or unplug the power
supply’s power cord from the grounded outlet first to ensure the safety of CPU.
∙ Overheating will seriously damage the CPU and system. Always make sure the
cooling fan can work properly to protect the CPU from overheating. Make sure to
apply an even layer of thermal paste (or thermal tape) between the CPU and the
heatsink to enhance heat dissipation.
∙ Confirm if your CPU cooler is firmly installed before turning on your system.
∙ Do not touch the CPU socket pins to avoid damage.
∙ Whenever CPU is not installed, always protect your CPU socket pins with the plastic
cap covered.
∙ Please refer to the documentation in the CPU cooler package for more details about
the CPU cooler installation.
∙ Read the CPU status in BIOS.

18 Memory
Memory
1. Unlock the DIMM slot by flipping open its side clips.
2. Vertically insert the DIMM into the DIMM slot. The DIMM has an off-center notch at
the bottom that will only allow it to fit one way into the DIMM slot.
3. Push the DIMM deeply into the DIMM slot. The side clips of the slot will
automatically close when the DIMM is properly seated and an audible click should
be heard.
4. Manually check if the DIMM has been locked in place by the DIMM slot’s side clips.
⚠
Important
You can barely see the golden finger if the memory module is properly inserted in the
DIMM slot.

19
Memory
Supported Memory Population
Channel
Number
of DIMM
Chan D Chan C Chan B Chan A
C
P
U
Chan E Chan F Chan G Chan H
M3 M2 M1 M0 M4 M5 M6 M7
1
Not Recommended Not Recommended
2
3
4V V V V
5Not Recommended Not Recommended
6V V V V V V
7Not Recommended Not Recommended
8VVVV VVVV
⚠
Important
∙ Configuration with 8 DIMMs is most recommended.
∙ 4 DIMMs configuration is conditionally recommended only if 8 channels cannot be
populated, and only with processors that have 128MB L3 or less.
∙ 6 DIMMs configuration is conditionally recommended only if 8 channels cannot be
populated, and only with <= 256GB per channel, all channels with equal capacity.
DIMM 0 DIMM 0 DIMM 0 DIMM 0
DIMM 0 DIMM 0 DIMM 0 DIMM 0
AMD®
EPYC™
Ch A
Ch B
Ch C
Ch D
M0
M1
M2
M3 M7
M6
M5
M4
Ch H
Ch G
Ch F
Ch E
A
B
C
DH
G
F
E

20 M.2 Key M (Optional)
M.2 Key M (Optional)
2. Move and fasten the
M.2 riser screw to the
appropriate location
according your M.2 SSD
size.
3. Insert your M.2 SSD
into the M.2 slot at a
30-degree angle.
4. Secure the M.2 SSD in
place with the supplied
M.2 screw.
1. Loosen the M.2
riser screw from the
motherboard.
30°
Supplied M.2 screw
⚽
Video Demonstration
Watch the video to learn how to
Install M.2 SSD.