Advantech ASMB-925T2-00A1 User manual

User Manual
ASMB-925 Series
Dual LGA3647-P0 Intel Xeon®
EATX Server Board with 12
DDR4, 5 PCIe x16 + 1 PCIe x8 + 1
PCI, 8 SATA3, 6 USB3.0, Dual
10GbE, IPMI

ASMB-925 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2017
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgements
Intel and Pentium are trademarks of Intel® Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft® Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandise
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Part No. 2001092500 Edition 1
Printed in China December 2017

iii ASMB-925 User Manual
A Message to the Customer
Advantech Customer Services
Each and every Advantech product is built to the most exacting specifications to
ensure reliable performance in the harsh and demanding conditions typical of indus-
trial environments. Whether your new Advantech equipment is destined for the labo-
ratory or the factory floor, you can be assured that your product will provide the
reliability and ease of operation for which the name Advantech has come to be
known. Your satisfaction is our primary concern. Here is a guide to Advantech’s cus-
tomer services. To ensure you get the full benefit of our services, please follow the
instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions,
you can easily find answers in your product documentation. These answers are
normally a lot more detailed than the ones we can give over the phone.
So please consult this manual first. If you still cannot find the answer, gather all the
information or questions that apply to your problem, and with the product close at
hand, call your dealer. Our dealers are well trained and ready to give you the support
you need to get the most from your Advantech products. In fact, most problems
reported are minor and are easily solved over the phone.
In addition, free technical support is available from Advantech engineers every
business day. We are always ready to give advice on application requirements or
specific information on the installation and operation of any of our products.
Declaration of Conformity
FCC
This device complies with the requirements in part 15 of the FCC rules:
Operation is subject to the following two conditions:
This device may not cause harmful interference
This device must accept any interference received, including interference that
may cause undesired operation.
Note: 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. Opera-
tion 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.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.

ASMB-925 User Manual iv
Initial Inspection
Before installing motherboard, please make sure that the following materials have
been shipped:
1 x ASMB-925 series EATX motherboard
1 x ASMB-925 series Startup Manual
1 x Driver CD
2 x Serial ATA HDD data cables
1 x I/O port bracket
2 x CPU power cable (8P)
2 x SATA power cable
1 x Warranty card
2 x Heatsink clip for CPU
If any of these items are missing or damaged, contact distributor or sales representa-
tive immediately. We have carefully inspected the ASMB-925 series mechanically
and electrically before shipment. It should be free of marks and scratches and in per-
fect working order upon receipt. When unpacking the ASMB-925 series, check it for
signs of shipping damage. (For example, damaged box, scratches, dents, etc.) If it is
damaged or it fails to meet the specifications, notify our service department or local
sales representative immediately. Also notify the carrier. Retain the shipping carton
and packing material for inspection by the carrier. After inspection, we will make
arrangements to repair or replace the unit.
Order Information
Part Number Chipset HDD Expansion Slot GbE/10GbE
LAN IPMI
ASMB-925T2-00A1 C622 8*SATA3 5 PCIe x16 + PCIe x8
(Gen 3.0) + PCI 2/2 Yes
ASMB-925I-00A1 C621 8*SATA3 5 PCIe x16 + PCIe x8
(Gen 3.0) + PCI 2/- Yes
ASMB-925-00A1 C621 8*SATA3 5 PCIe x16 + PCIe x8
(Gen 3.0) + PCI 2/- -

v ASMB-925 User Manual
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ...............................................................................................2
1.2 Features....................................................................................................2
1.3 Specifications............................................................................................3
Table 1.1: Specifications .............................................................3
1.4 Board Layout, Jumpers and Connectors...................................................5
Figure 1.1 Board Layout..............................................................5
Figure 1.2 Rear I/O......................................................................6
Table 1.2: Onboard LAN LED Color Definition............................6
Table 1.3: Onboard LAN LED Color Definition............................6
Table 1.4: Jumpers......................................................................7
Table 1.5: Connectors.................................................................7
Table 1.6: Onboard LED..............................................................8
1.5 Block Diagram...........................................................................................9
Figure 1.3 Block Diagram............................................................9
1.6 System Memory ........................................................................................9
1.7 Memory Installation.................................................................................10
1.8 Processor Installation..............................................................................10
Chapter 2 Connections.......................................13
2.1 Introduction .............................................................................................14
2.2 USB Ports and LAN Port (USB1~USB11, LAN1~LAN4) ........................14
2.3 VGA Connector (VGA1)..........................................................................15
2.4 Serial Port (COM1, COM2) .....................................................................15
2.5 PS2 Keyboard and Mouse Connector (KBMS1).....................................16
2.6 CPU Fan Connector (CPUFAN0, CPUFAN1).........................................16
2.7 System Fan Connector (SYSFAN0~SYSFAN4).....................................17
2.8 Front Panel Connector (JFP1, JFP2, JFP3) ...........................................17
2.8.1 Power LED (JFP3)......................................................................18
Table 2.1: ATX Power Supply LED Status................................18
2.8.2 External Speaker (JFP2 pins 1, 4, 7, 10)....................................18
2.8.3 HDD LED Connector (JFP1 Pins 2 & 5) .....................................18
2.8.4 Reset Connector (JFP1 Pins 9 & 12)..........................................18
2.8.5 SNMP Connector (JFP1 Pins 8 & 11).........................................18
2.9 Case Open (JCASE1).............................................................................19
2.10 SATA SGPIO (SGPIO1)..........................................................................20
2.11 Front Panel LAN Indicator Connector (LANLED1)..................................20
2.12 Serial ATA Interface (SATA0~SATA7)....................................................21
2.13 PCIe & PCI Expansion Slot.....................................................................22
2.14 Auxiliary Power Connector (ATXPWR1, ATX12V1, ATX12V2)..............23
2.15 HD Audio Interface Connector (HDAUD1)..............................................24
2.16 LPC Connector (LPC1) for Optional TPM Module ..................................24
2.17 Clear CMOS and Update ME Connector (JCMOS1, JME1)...................25
2.18 PMBUS Connector (PMBUS1)................................................................25
2.19 Front Panel SMBUS Connector (SMBUS1)............................................26
2.20 IPMI Module Connector (BMC_CN1, BMC_CN2)...................................26
2.21 VOLT1 Connector (VOLT1) ....................................................................27
2.22 GPIO Connector (GPIO1).......................................................................28
Chapter 3 AMI BIOS ............................................29
3.1 Introduction .............................................................................................30

ASMB-925 User Manual vi
3.2 BIOS Setup............................................................................................. 31
3.2.1 Main Menu.................................................................................. 31
3.2.2 Advanced BIOS Features Setup................................................. 32
3.2.3 Platform Configuration................................................................ 51
3.2.4 Socket Configuration .................................................................. 59
3.2.5 Server Management................................................................... 79
3.2.6 Security....................................................................................... 82
3.2.7 Boot ............................................................................................ 84
3.2.8 Save & Exit................................................................................. 85
Chapter 4 Chipset Software Installation Utility 87
4.1 Before Beginning .................................................................................... 88
4.2 Introduction............................................................................................. 88
4.2.1 Main Menu.................................................................................. 88
4.3 Windows Series Driver Setup ................................................................. 89
Chapter 5 VGA Setup......................................... 91
5.1 Introduction............................................................................................. 92
5.2 Windows Series Driver Setup ................................................................. 92
Chapter 6 LAN Configuration & USB 3.0..........93
6.1 LAN Configuration................................................................................... 94
6.1.1 Introduction................................................................................. 94
6.1.2 Features...................................................................................... 94
6.1.3 Installation................................................................................... 94
6.1.4 Windows Series Driver Setup..................................................... 94
6.2 USB 3.0................................................................................................... 95
6.2.1 Introduction................................................................................. 95
6.2.2 Windows Series Driver Setup..................................................... 95
6.3 SATA & PCIe SSD RAID ........................................................................ 95
Appendix A Programming the Watchdog Timer.97
A.1 Watchdog Timer Overview...................................................................... 98
A.2 Programming the Watchdog Timer......................................................... 98
Appendix B I/O Pin Assignments....................... 101
B.1 USB Header (USB7_8, USB9_10)........................................................ 102
Table B.1: USB Header........................................................... 102
B.2 USB3.0 Header(USB5_6)..................................................................... 102
Table B.2: USB Header........................................................... 102
B.3 VGA Connector (VGA1)........................................................................ 103
Table B.3: VGA Connector...................................................... 103
B.4 RS-232 Interface (COM2)..................................................................... 103
Table B.4: RS-232 Interface.................................................... 103
B.5 External Keyboard Connector (KBMS1)............................................... 104
Table B.5: External Keyboard Connector................................ 104
B.6 CPU and System Fan Power Connector (CPUFAN0~1,
SYSFAN0~SYSFAN4).......................................................................... 104
Table B.6: Fan Power Connector ............................................ 104
B.7 Power LED (JFP3)................................................................................ 104
Table B.7: Power LED............................................................. 104

vii ASMB-925 User Manual
B.8 External Speaker Connector (JFP2) .....................................................105
Table B.8: External Speaker Connector ..................................105
B.9 Reset Connector (JFP1) .......................................................................105
Table B.9: Reset Connector.....................................................105
B.10 HDD LED Connector (JFP1).................................................................105
Table B.10:HDD LED Connector..............................................105
B.11 ATX Soft Power Switch (JFP1) .............................................................106
Table B.11:ATX Soft Power Switch ..........................................106
B.12 Front panel SMBus Connector (SMBUS1)............................................106
B.13 USB/LAN Ports (LAN1_USB1_2, LAN2_USB3_4) ...............................106
Table B.12:USB Port.................................................................106
Table B.13:Giga LAN 10/100/1000 Base-T RJ-45 Port............106
B.14 Audio Connector (HDAUD1) .................................................................107
Table B.14:Front Panel Audio Connector.................................107
B.15 Alarm Board Connector (VOLT1)..........................................................107
Table B.15:Alarm Board Connector..........................................107
B.16 Case Open Connector (JCASE1) .........................................................107
Table B.16:Case Open Connector............................................107
B.17 Front Panel LAN LED Connector (LANLED1).......................................108
Table B.17:LAN LED Connector............................................... 108
B.18 SATA SGPIO (SGPIO1)........................................................................108
B.19 LPC Connector (LPC1).........................................................................108
B.20 Clear CMOS and Update ME Connector (JCMOS1, JME1).................109
B.21 PMBUS Connector (PMBUS1)..............................................................109
B.22 GPIO Connector (GPIO1).....................................................................109

ASMB-925 User Manual viii

Chapter 1
1Overview

ASMB-925 User Manual 2
1.1 Introduction
The ASMB-925 series serverboard is the most advanced Intel Xeon processor series
board for server-grade IPC applications that require high-performance computing
power & multi-expansion slots. This serverboard supports Intel Xeon scalable pro-
cessors and DDR4 2133/2400/2666 MHz memory up to 384 GB.
ASMB-925 series provides five PCIe x16 slots (Gen3) + one PCIe x8 slots (Gen3)
and one PCI.
The ASMB-925 series has dual Gigabit Ethernet LAN ports via a dedicated PCIe x1
bus, which offer bandwidth up to 250 MB/s, eliminating network bottlenecks, and
LAN2 shares IPMI function allowing remote control for ASMB-925I/ASMB-925T2
sku. In addition, another dual 10 Gigabit Ethernet LAN ports are provided for ASMB-
925T2 sku. High reliability and outstanding performance makes ASMB-925 series the
ideal platform for industrial server/networking applications.
By using the Intel C621/C622 chipset, the ASMB-925 series offers a variety of fea-
tures such as 8 onboard SATA III interfaces; it supports Intel RSTe (Rapid Storage
Technology Enterprise) and provides RAID 0, 1, 10 and 5 (Windows only); and it has
5 USB 2.0 & 6 USB 3.0 connectors.
These powerful I/O capabilities ensure even more reliable data storage capabilities
and high-speed I/O peripheral connectivity.
1.2 Features
General
Intel Xeon Scalable processors support: ASMB-925 series supports two Intel
Xeon Platinum/Gold/Silver/Bronze series up to 28 core processors.
High performance I/O capability: Dual 10 Gigabit LAN (for ASMB-925T2 sku
only), dual Gigabit LAN, 5 x PCIe x16 slot + 1x PCIe x8 slot, 8 x SATA connec-
tors and 5 x USB 2.0 ports, 6 x USB 3.0.
Standard EATX form factor with industrial features: ASMB-925 series pro-
vides industrial features like long product lifecycle, reliable operation under wide
temperature range, watchdog timer, etc.
IPMI 2.0 support: ASMB-925I/ASMB-925T2 sku equipped with ASPEED 2500
BMC chip supports IPMI 2.0 (Intelligent Platform Management Interface 2.0) via
LAN2 port.
KVM over IP: KVM over IP function allows BIOS level remote control of ASMB-
925I/ASMB-925T2 sku system through your own computer.
Note! 1. IPMI module will be included in ASMB-925I/ASMB-925T2 sku.
2. Five USB 2.0 ports (1*Type- A) and six USB 3.0 ports (2 ports from
on-board 20-pin header)
3. Please refer to the release note of each Linux OS for Intel's C621/
C622 chipset SATA RAID function support.

3 ASMB-925 User Manual
Chapter 1 Overview
1.3 Specifications
Table 1.1: Specifications
Processor
CPU
Dual Intel LGA3647-P0 Xeon processor sockets
Supports Intel Xeon Processor Scalable Family, up to 28
cores
Supports the TDP of processor up to 205 W
System Memory
Memory Capacity
Supports DDR4 memory bus
Total 12 memory slots provided
Supports up to 384 GB memory
6 channels per processor, 1 memory slot per channel
Memory Type Supports DDR4 2133/2400/2666 MHz ECC-REG Modules
DIMM Sizes Each memory slot supports 4GB, 8GB, 16GB and 32GB memory
modules
Memory Voltage 1.2 V
Error Detection Corrects single-bit errors
Detects double-bit errors (using ECC memory)
On-Board Devices
Chipsets Intel C621/C622 PCH provide 20 PCIe Gen3 lanes
Network Controllers
2 x Intel I210-AT Gigabit Ethernet Controller connected to
C621/C622 through PCIe Gen1 lane.
Intel X557-AT2 10 Gigabit Ethernet Controller connected to
C622 through PCIe Gen3 lane.
Above network supports 10BASE-T, 100BASE-T, 1000BASE-
T and 10GBASE-T, with RJ-45 output.
VGA ASPEED AST2500/2510 controller with 64 MB VGA memory pro-
vides basic 2D VGA function.
EC ITE IT8528E chip provide motherboard keyboard mouse, RS-232
and hardware monitor functions.
BMC
(925I/925T2 SKUs) One of Intel I210-AT Gigabit Ethernet and Intel X557 10GbE con- nected to AST2500 for BMC remote management
Input / Output
Serial ATA
Total 8 x SATA ports and provide 6 Gb/s bandwidth.
RAID 0, 1, 5, 10 support (Windows only. For Linux support
please refer to the note item 3 of chapter 1.1).
LAN
2 x RJ-45 LAN ports (10/100/1000 Base-T LAN), with LAN2
sharing IPMI function (ASMB-925I/ASMB-925T2 sku only)
2 x RJ-45 10Gb LAN ports (10GBase-T LAN)(ASMB-925T2
sku only).
USB
4 x USB3.0 ports at rear window.
2 x USB 2.0 internal headers (4 ports).
1 x USB 3.0 internal header (2 ports).
1 x internal Type-A USB 2.0 port.
VGA 1 x VGA port.
Keyboard / Mouse PS/2 keyboard and mouse internal header (onboard)
Serial Port / Header 1 x internal header (2 x 5P 2.54 mm pitch)
1 x external RS-232 port at rear window.
Power Connector

ASMB-925 User Manual 4
System Power 1 x 24-pin SSI EPS 12 V power connector (Input 12 V, 5 V, 3.3 V, 5
V standby)
CPU Power 2 x 8 pin SSI EPS 12 V power connector for CPU & Memory power
(12V)
PCIe slot power 1 x 8pin 12 V power connector for PCIe slot 12 V input
Expansion Slots
PCI-express
5 x PCI-E x16 slot (Gen3 x16 link)
–PCIEX16_SLOT2 (from CPU 1)
–PCIEX16_SLOT3 (from CPU 1)
–PCIEX16_SLOT4 (from CPU 0)
–PCIEX16_SLOT5 (from CPU 1)
–PCIEX16_SLOT6 (from CPU0)
1 x PCI-E x8 slot (Gen3 x8 link)
–PCIEX8_SLOT7 (from CPU 0)
PCI 1 x PCI slot
–PCI_SLOT1 (from IT8896 and PCH)
System BIOS
BIOS Type 128 Mb SPI Flash EEPROM with AMI BIOS
PC Health Monitoring
Voltage Monitors for CPU Cores, +3.3 V, +5 V, +12 V, +5 V Standby, VBAT
Fan
Two 4-pin heads for CPU cooler and five 4-pin headers for
system fan.
All fans with tachometer status monitoring
Thermal control for all fan connectors
Temperature Monitoring for CPU (PECI)
Monitoring for system external thermal sensor
Other Features
(Case Open)
Chassis intrusion detection
Chassis Intrusion header
Operating Environment / Compliance
RoHS RoHS Compliant 6/6 Pb Free
Environmental Spec.
Operating Temperature: 0 to 40° C
Non-operating Temperature: -40 to 85° C
Operating Relative Humidity: 10% to 90% (non-condensing)
Non-operating Relative Humidity: 10% to 95% (non-condens-
ing)
Table 1.1: Specifications

5 ASMB-925 User Manual
Chapter 1 Overview
1.4 Board Layout, Jumpers and Connectors
Connectors on the ASMB-925 Series are linked to external devices such as hard disk
drives. In addition, ASMB-925 Series has a number of jumpers that are used to con-
figure the system for specific applications.
The tables below list the functions of each jumper and connector. Later sections in
this chapter give instructions for setting jumpers. Chapter 2 gives instructions for con-
necting external devices to ASMB-925 Series.
Figure 1.1 Board Layout
VGA1_COM1
LAN1_USB1_2
LAN2_USB3_4
LAN34
BMC_CN1
SYSFAN4
BMC_CN2
SPI_SKT1_U512
EC_SMBUS1
PCI_SLOT1
HDAUD1
PCIEX16_SLOT2
PCIEX16_SLOT3
PCIEX16_SLOT4
PCIEX16_SLOT5
PCIEX16_SLOT6
COM2
KBMS1
GPIO1
SMBUS1
PCIEX8_SLOT7
DIMMI1
DIMMH1
DIMMG1
DIMMJ1
DIMMK1
DIMML1
CPU1
CN1
SGPIO1
USB11
JWDT1
LANLED1
JME1
SATA0~7
USB5_6
USB7_8
USB9_10
SLOT12V1
JFP1/JFP2/JFP3
SYSFAN0~3
CPUFAN0
DIMMF1
DIMME1
DIMMD1
PMBUS1
CPUFAN1
ATX12V2
DIMMA1
DIMMB1
DIMMC1
ATXPWR1
CPU0
PCN1
SYS_LED1
LPC1
ATX12V1
VOLT1
SPI_CN1
BIOS_SKT1
PSON1
PEHP1
JTHR_SEL1
EX_THR1
JPCICLK1
JCMOS1
JCASE1
VROC1
BH2

ASMB-925 User Manual 6
Figure 1.2 Rear I/O
Table 1.2: Onboard LAN LED Color Definition
10/100/1000 Mbps LAN Link/Activity LED Scheme
LAN1 & LAN2 (1G)
Left LED Right LED
10 Mbps Link
Active Off Off Green Blinking green
100 Mbps Link
Active Amber Amber Green Blinking green
1000 Mbps Link
Active Green Green Green Blinking green
No Link Off Off
Table 1.3: Onboard LAN LED Color Definition
100/1000 & 10G Mbps LAN Link/Activity LED Scheme
LAN3 & LAN4 (10G)
Left LED Right LED
100 Mbps Link
Active Off Off Green Blinking green
COM1 LAN1 LAN2 LAN34
VGA1 USB1_2 USB3_4
ASMB-925T2-00A1
COM1 LAN1 LAN2
VGA1 USB1_2 USB3_4
ASMB-925-00A1
ASMB-925I-00A1

7 ASMB-925 User Manual
Chapter 1 Overview
1G Mbps Link
Active Amber Amber Green Blinking green
10G Mbps Link
Active Green Green Green Blinking green
No Link Off Off
Table 1.4: Jumpers
Label Function Default
JCMOS1 CMOS clear 1-2
JME1 ME update 1-2
JWDT1 Watch dog function enable 1-2
PSON1 AT(1-2) / ATX(2-3) mode 2-3
JCASE1 Chassis case open alarm disable 1-2
JTHR_SEL On board(1-2) /external(2-3) thermistor 1-2
JPCICLK1 PCI clock selection for 33 MHz(2-3) / 66 MHz(1-2) 2-3
Keep CMOS data/
Disable ME update/ Clear CMOS data/ Enable ME update/
Table 1.5: Connectors
Label Function
ATXPWR1 ATX 24 pin main power connector
ATX12V1 Processor power connector (for CPU0)
ATX12V2 Processor power connector (for CPU1)
SLOT12V1 For PCIe slot 12V input only
SATA0~SATA7 Serial ATA0~7
USB7_8, USB9_10 USB 2.0 header 7, 8, 9, 10
USB11 USB 2.0 port 11 (Type-A)
USB1_2, USB3_4,
USB5_6 USB 3.0 port 1, 2, 3, 4; USB 3.0 port 5, 6 (20-pin header)
PCI_SLOT1 PCI slot
PCIEX16_SLOT2 PCIE x16 slot
PCIEX16_SLOT3 PCIE x16 slot
PCIEX16_SLOT4 PCIE x16 slot
PCIEX16_SLOT5 PCIE x16 slot
PCIEX16_SLOT6 PCIE x16 slot
PCIEX8_SLOT7 PCIE x8 slot
DIMMA1~DIMML1 DDR4 slot
CPUFAN0, CPUFAN1 CPU FAN connector
SYSFAN0~SYSFAN4 System FAN connector
LAN1, LAN2 GbE LAN connector
Table 1.3: Onboard LAN LED Color Definition
123
123

ASMB-925 User Manual 8
LAN34 10GbE LAN connector
VGA1_COM1 VGA and COM connector
COM2 Serial port: RS-232
KBMS1 External keyboard and mouse connector (6 pin)
BIOS_SKT1 BIOS ROM
LANLED1 LAN LED extension connector
SMBUS1 Front panel SMBus header
BMC_CN1, BMC_CN2 IPMI module header
GPIO1 GPIO connector
SGPIO1 SATA SGPIO header
HDAUD1 Audio header
JFP1, JFP2, JFP3 Front panel header
PMBUS1 Power supply SMBbus I2C header
EX_THR1 For external thermistor cable use
SYS_LED1 For optional system LED indicator
LPC1 Low pin count connector for Advantech designed LPC modules
VOLT1 Alarm Board Power connector
SPI_CN1 SPI flash card pin header
PEHP1 NVMe RAID LED control
BH2 battery connector
VROC1 VROC hardware key header
CN1 CPLD code update header
PCN1 CPU power code update header
SPI_SKT1_U512 EC ROM
Table 1.6: Onboard LED
LED Description LED Definition
5V_LED1 Power on LED Off:
Power off On (Green): System is On
5VSB_LED1 Standby LED Off:
No input AC Power
On (Green):
System is ON, in sleep mode,
or in soft-off mode
LED3 BMC heartbeat LED (ASMB-925I/ASMB-
925T2 SKU Only)
Blinking (Green):
Controller is working normally
Table 1.5: Connectors

9 ASMB-925 User Manual
Chapter 1 Overview
1.5 Block Diagram
Figure 1.3 Block Diagram
1.6 System Memory
ASMB-925 Series has twelve 288-pin memory slots for DDR4 2133/2400/2666 MHz
memory modules with maximum capacity of 384 GB (Maximum 32 GB for each
DIMM). ASMB-925 Series supports registered DIMMs memory module.

ASMB-925 User Manual 10
1.7 Memory Installation
1.8 Processor Installation
The ASMB-925 Series is designed for Intel Xeon Scalable processors.
Step 1
Remove dust cover.
Single CPU
Installed
(CPU0)
Dual CPU Installed
(CPU0 & CPU1)
123456 23456789101112Quantity of memory
installed
DIMMA1VVVVVV VVVVVVVVVVV
DIMMB1 VVVVV VVVVVVVVVV
DIMMC1 VVVV VVVVVVVV
DIMMD1 VVV VVVVVV
DIMME1 VV VVVV
DIMM F1 V V V
DIMM G1 VVVVVVVVVVV
DIMM H1 VVVVVVVVV
DIMM I1 VVVVVVV
DIMM J1 VVVVV
DIMM K1 VVV
DIMM L1 V

11 ASMB-925 User Manual
Chapter 1 Overview
Step 2
Install CPU on CPU clip and align pin 1 mark.
Step 3
Install the CPU clip assembly on the heatsink as a processor + heatsink module.

ASMB-925 User Manual 12
Step 4
Put the processor heatsink module into the motherboard bolster plate by using a T-30
screw driver (follow heatsink label direction 1-2-3-4).