AXIOMTEK IMB760 User manual

IMB760
Dual Intel®LGA4189 Xeon®Scalable
Ice Lake-SP Processor EATX
Industrial Motherboard with 4 PCIe
x16, 2 PCIe x8, VGA, NVMe & IPMI
User’s Manual

ii
Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness or usefulness of any information in this document. Axiomtek does not make any
commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
CAUTION
The wrong type of batteries might cause an explosion. It is recommended that users only
replace with the same or equivalent type of batteries as suggested by the manufacturer once
properly disposing of any used ones.
©Copyright 2022 Axiomtek Co., Ltd.
All Rights Reserved
June 2022, Version A1
Printed in Taiwan

iii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please follow the precautions:
◼Do not remove boards or integrated circuits from their anti-static packaging until you are
ready to install them.
◼Before holding the board or integrated circuit, touch an unpainted portion of the system
unit chassis for a few seconds to discharge static electricity from your body.
◼Wear a grounding wrist strap, available from most electronic component stores, when
handling boards and components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
Intel®and Celeron®are trademarks of Intel Corporation.
Windows®is a trademark of Microsoft Corporation.
AMI is a trademark of American Megatrend Inc.
IBM, PC/AT, PS/2, and VGA are trademarks of International Business Machines Corporation.
Other brand names and trademarks are the properties and registered brands of their
respective owners.

iv
Table of Contents
Disclaimers ......................................................................................................ii
ESD Precautions............................................................................................. iii
Section 1 Introduction............................................. 1
1.1 Features ................................................................................................2
1.2 Specifications ........................................................................................2
1.3 Packing list ............................................................................................4
Section 2 Board and Pin Assignments.................... 5
2.1 Board Layout.........................................................................................5
2.2 Rear I/O.................................................................................................6
2.3 Block Diagram.......................................................................................7
2.4 Jumper Settings ....................................................................................8
2.4.1 Clear CMOS (JP7) ...................................................................................... 9
2.4.2 AT/ATX Mode Select (JP10)........................................................................ 9
2.5 Connectors..........................................................................................10
2.5.1 VGA Connector (VGA1) .............................................................................11
2.5.2 LAN with IPMI and USB 3.1 Connectors (CN2) .........................................11
2.5.3 USB 3.1 Connectors (CN1) ..........................................................................11
11
2.5.4 10GbE LAN port (LAN1 & 2) ..................................................................... 12
12
2.5.5 GPIO Header (CN5) .................................................................................. 12
2.5.6 TPM Pin Header (CN11) ............................................................................. 12
2.5.7 M.2 2280 Key M PCIe x4 SSD slot (CN7 and CN10) ............................... 13
2.5.8 Front Panel Header (CN18) ...................................................................... 14
2.5.9 Power Input Connectors (ATX1, ATX2, CN12, CN13, CN16 and CN17).. 15
2.5.10 PMBUS Connector (PMBUS1).................................................................. 16
2.5.11 Internal USB 3.1 Gen1 Connector (CN15)................................................ 16
2.5.12 COM1 Connector (COM1) ........................................................................ 16
2.5.13 Fan Connectors (FAN1~FAN6 and CPU FAN1/2) .................................... 17
2.5.14 Internal USB Headers (USB3~4) .............................................................. 17
2.5.15 SATA 3.0 Connectors (SATA1 ~ SATA4)................................................... 18
2.5.16 LAN Active LED connectors (JP26 and JP27) .......................................... 18
2.5.17 Programmable LED connectors (JP28) .................................................... 18
2.4.18 Internal Keyboard Connector (CN3)........................................................ 18
2.5.19 Internal Mouse Connector (CN4) ............................................................ 19
2.5.20 Serial Port Connector (IPMICOM1)........................................................... 19
2.6 Hardware Installation...........................................................................20
2.6.1 Installing the CPU...................................................................................... 20

v
Section 3 Hardware Description ........................... 27
3.1 Microprocessors..................................................................................27
3.2 BIOS....................................................................................................27
3.3 System Memory ..................................................................................27
Section 4 AMI BIOS Setup Utility.......................... 29
4.1 Starting................................................................................................29
4.2 Navigation Keys ..................................................................................29
4.3 Main Menu ..........................................................................................31
4.4 Advanced Menu ..................................................................................32
4.5 Platform Configuration.........................................................................44
4.6 Socket Configuration...........................................................................47
4.7 Server Mgmt........................................................................................52
4.8 Security Menu .....................................................................................53
4.9 Boot Menu...........................................................................................54
4.10 Save & Exit Menu................................................................................55
Appendix A Watchdog Timer ..................................... 57
About Watchdog Timer...................................................................................57
How to Use Watchdog Timer .........................................................................57
Appendix B TPM Module Installation ........................ 59
Appendix C Configuring SATA for RAID..................... 63
Configuring SATA Hard Drive(s) for RAID Function .......................................63
Appendix D Digital I/O................................................ 69
Digital I/O Software Programming..................................................................69

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IMB760 LGA4189 EATX Motherboard
Introduction 1
Section 1
Introduction
The IMB760 is an advanced EATX industrial severboard based on the Intel® Xeno® Scalable
Ice Lake-SP processors in dual LGA4189 socket, and it comes with an Intel® C627A chipset.
Featuring optimal computing and visual performance, the IMB760 motherboard is an ideal
solution for developing major industry applications ranging from financial modeling to deep
learning AI and complex video analytics.
To maximize the expandibility, the Intel® Ice Lake-SP-based IMB760 comes with an internal
USB dongle, six USB 3.1 Gen1 and eight USB 2.0, one RS-232/422/485, two 10 Gigabit LANs
with Intel® X550-AT2 and one IPMI LAN via Intel® I210-AT.Also, it provides eight-channel
programmable digital I/O, one HD Codec audio connector, SMBus, plus one PS/2 keyboard
and mouse interface. It also supports VGA display interface and multiple accelerator card slots
to deliver superior graphics performance, while Trusted Platform Module 2.0 (TPM 2.0) is
available for option to ensure critical information security.

IMB760 LGA4189 EATX Motherboard
2 Introduction
1.1 Features
⚫Dual Intel® Xeon® Scalable Ice Lake-SP platform up to 270W TDP
⚫16 x 288-pin DDR4-3200 RDIMM for up to 1TB of system memory
⚫4 PCIe x16, 2 PCIe x8
⚫Supports two M.2 Key M
⚫Supports TPM 2.0 (optional)
⚫IPMI (optional)
⚫Supports multiple accelerator cards
⚫Supports internal USB dongle
1.2 Specifications
⚫CPU
◼LGA4189 Socket Intel®Xeno®Scalable Ice Lake-SP processor
⚫Chipset
◼Intel®C627A
⚫BIOS
◼AMI BIOS
⚫System Memory
◼C627A:
➢16 x 288-pin DIMM sockets
➢Maximum 1TB DDR4 R-DIMM memory (max. 64GB per slot)
➢Supports 3200MHz
➢Supports the memory with ECC function
⚫Onboard Multi I/O
◼1 x RS-232/422/485 (rear I/O, BIOS selection)
◼1 x PS/2 keyboard (internal box header)
⚫USB Interface
◼6 x USB3.1(Gen1) ports (4 x real I/O, 2 x internal box header)
◼6 x USB 2.0 ports (4 x internal box header, 2 x 180D TypeA)

IMB760 LGA4189 EATX Motherboard
Introduction 3
⚫Ethernet
◼LAN1: 10Gbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot ROM with
Intel®X550-AT2
◼LAN2: 10Gbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot ROM with
Intel®X550-AT2
◼LAN3: IPMI LAN via Intel®i210-AT 1000/100/10Mbps Gigabit/Fast Ethernet, PXE
Boot ROM (shared with BMC AST2500)
⚫Storage
◼8 x SATAIII with RAID 0/1/5/10
◼2 x M.2 M-Key 2280 with PCIe x4 / SATA signal for NVMe SSD (with RAID0 & 1
supported)
⚫Display
◼1 x 15-pin D-Sub as VGA connector. Maximum resolution up to 1920x1200 @60Hz
◼Graphics controller via AST2500 BMC
⚫Expansion Interface
◼4 x PCI-Express x16 slots
◼2 x PCI-Express x8 slots
⚫Power Input
◼1 x 24-pinATX power input connector
◼1 x 12V ATX power input connector
◼4 x 12V ATX power input connector for CPU Power
⚫Operating Temperature
◼10°C ~ 35°C, depends on cooler solution
⚫Storage Temperature
◼-20°C ~ 85°C
⚫Operating Humidity
◼10% to 95% relative humidity, non-condensing
⚫Dimensions
◼305 x 330mm (12” x 13”)
Note
All specifications and images are subject to change without notice.

IMB760 LGA4189 EATX Motherboard
4 Introduction
1.3 Packing list
⚫Bulk packing
◼1 x Motherboard
◼1 x I/O bracket
⚫Gift box
◼1 x Motherboard
◼1 x I/O bracket

IMB760 LGA4189 EATX Motherboard
Board and Pin Assignments 5
Section 2
Board and Pin Assignments
2.1 Board Layout
Top view

IMB760 LGA4189 EATX Motherboard
6 Board and Pin Assignments
2.2 Rear I/O
I/O side
I/O bracket

IMB760 LGA4189 EATX Motherboard
Board and Pin Assignments 7
2.3 Block Diagram

IMB760 LGA4189 EATX Motherboard
8 Board and Pin Assignments
2.4 Jumper Settings
Pin description
A jumper is a small component consisting of a jumper clip and jumper pins. Install a jumper clip
on two jumper pins to close the jumper pins. Remove the jumper clip from two jumper pins to
open the jumper pins. The following illustration shows how to set up a jumper.
Before connecting the power to the IMB760 series motherboard, make sure all of the jumpers
are in factory default position. Below you can find a summary table of all jumpers and onboard
default settings.
Note
Turn off the power before changing any default jumper settings.
Jumper
Description
Setting
JP7
Clear CMOS
Default: Normal operation
1-2 Close
JP10
AT/ATX power mode select
Default: AT mode
1-2 Close
Note
To identify the first pin of a header or jumper, please refer to the following
information:
⚫Usually, there is a thick line or a triangle mark near the header or jumper pin
1.
⚫A square pad, which you can find on the back of the motherboard, is usually
used for pin 1.

IMB760 LGA4189 EATX Motherboard
Board and Pin Assignments 9
2.4.1 Clear CMOS (JP7)
This jumper (3x1-pin p=2.54mm) allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system setup parameters
by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM
data in CMOS, which includes system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. Move the jumper clip from pins 1-2 (default) to pins 2-3. Keep the clip on pins 2-3
for about 5~10 seconds, then move the clip back to pins 1-2.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup to re-set
the data.
2.4.2 AT/ATX Mode Select (JP10)
This jumper (3x1-pin p=2.54mm) allows you to select AT or ATX power mode.
Function
Setting
Normal operation (Default)
1-2 close
Clear CMOS
2-3 close
Function
Setting
AT mode (Default)
1-2 close
ATX mode
2-3 close

IMB760 LGA4189 EATX Motherboard
10 Board and Pin Assignments
2.5 Connectors
Signals go to other parts of the system through connectors. Loose or improper connection
might cause problems, Make sure all connectors are properly and firmly connected. Here is a
summary table showing the connectors on the hardware.
Connector
Description
VGA1
VGA Connector
CN2
LAN (Shared IPMI LAN) + USB3.1 GEN1 Connector
CN1
USB3.1 GEN1 Connector
LAN1
10G LAN Connector
LAN2
10G LAN Connector
CN11
TPM 2.0 Connector (Optional)
CN7
M.2 Connector
CN10
M.2 Connector
U1
CPU1 Socket
U2
CPU2 Socket
CN18
Front Panel Header
ATX1
24-pin ATX Power Input Connector
CN16
CPU1 Power Input Connector
CN17
CPU1 AUX Power Input Connector
CN12
CPU2 Power Input Connector
CN13
CPU2 AUX Power Input Connector
ATX2
CPU2 ATX 12V Power Input Connector
PMBUS1
PMBUS Connector
CN15
Internal USB3.1 GEN1 Connector
COM1
COM port Connector
FAN1~6
System Fan Connectors
CPUFAN1
CPU1 Fan Connector
CPUFAN2
CPU2 Fan Connector
USB1
Internal USB2.0 Type A Connector
USB2
Internal USB2.0 Type A Connector
USB3
Internal USB2.0 Headers
USB4
Internal USB2.0 Headers
Slot2, Slot7
PCI-Express x8 Slots (Gen4)
Slot3, Slot4, Slot5, Slot6
PCI-Express x16 Slots (Gen4)
SATA1~SATA4
SATA III Connector
CN3
Internal PS2 Key Board Connector
CN4
Internal PS2 Mouse Connector
IPMICOM1
Internal IPMI COM Connector
CN5
Internal DIO Connector
JP26, JP27
LAN Active LED connectors
JP28
Programmable LED connectors
P1-DIMMA~P1-DIMMH
CPU1 DDR4 RDIMM Connector
P2-DIMMA~P2-DIMMH
CPU1 DDR4 RDIMM Connector

IMB760 LGA4189 EATX Motherboard
Board and Pin Assignments 11
LAN
USB
USB
2.5.1 VGA Connector (VGA1)
The 15-pin D-Sub connector is for VGA display.
2.5.2 LAN with IPMI and USB 3.1 Connectors (CN2)
The motherboard comes with one plug and play Ethernet interfaces (RJ-45) which
supports IPMI management, which is fully compliant with the IEEE 802.3 standard.
Connection can be established by plugging one end of the Ethernet cable into this RJ-45
connector and the other end to a 1000/100/10 Base-T hub.
The Universal Serial Bus compliant with USB 3.1 Gen1 (CN2) connectors on the rear I/O
are used for connecting USB peripherals such as a keyboard, mouse, scanner, etc.
2.5.3 USB 3.1 Connectors (CN1)
The Universal Serial Bus compliant with USB 3.1 Gen1 (CN1) connectors on the rear I/O
are used for installing USB peripherals such as a keyboard, mouse, scanner, etc.
Pin
Signal
Pin
Signal
1
Red
2
Green
3
Blue
4
NC
5
GND
6
GND
7
GND
8
GND
9
VCC
10
GND
11
NC
12
DDC DATA
13
Horizontal Sync
14
Vertical Sync
15
DDC CLK
Pin
LAN Signal
Pin
LAN Signal
L1
Tx+ (Data
transmission positive)
L2
Tx- (Data transmission
negative)
L3
Rx+ (Data reception
positive)
L4
RJ-1 (For 1000 Base-T
only)
L5
RJ-1 (For 1000
Base-T only)
L6
Rx- (Data reception
negative)
L7
RJ-1 (For 1000
Base-T only)
L8
RJ-1 (For 1000 Base-T
only)
A
100 LAN LED (Green)
/ 1000 LAN LED
(Orange)
B
Active LED

IMB760 LGA4189 EATX Motherboard
12 Board and Pin Assignments
2.5.4 10GbE LAN port (LAN1 & 2)
The IMB760 comes with two 10GbE LAN ports. The pin assignments are listed on the
following table.
2.5.5 GPIO Header (CN5)
This header (5x2-pin p=2.00mm) is for digital I/O interface.
Note
The default value of DIO1 to DIO8 is set as GPI with high level.
2.5.6 TPM Pin Header (CN11)
The header (7x2-pin p=2.0mm) is for SPI interface with an AX93515 TPM module.
Note
The screw type is M2*0.4.
Pin
Description
J1
MDI0+
J2
MDI0-
J3
MDI1+
J4
MDI2+
J5
MDI2-
J6
MDI1-
J7
MDI3+
J8
MDI3-
Left LED
Speed LED：
10G (Green)
1G (Orange)
100M (No light)
Right LED
Active LED (Green)
Pin
Signal
Pin
Signal
1
DIO1
2
DIO8
3
DIO2
4
DIO7
5
DIO3
6
DIO6
7
DIO4
8
DIO5
9
NC
10
GND
Pin
Signal
Pin
Signal
1
VCC3P3
2
GND
3
MOSI
4
MISO
5
CLK
6
CS2
7
RST
8
PIRQ
9
PP
10
NC
11
NC
12
NC
13
NC
14
MC
13 11 9 7 5 3 1
14 12 10 8 6 4 2

IMB760 LGA4189 EATX Motherboard
Board and Pin Assignments 13
2.5.7 M.2 2280 Key M PCIe x4 SSD slot (CN7 and CN10)
The IMB760 comes with two M.2 2280 Key M slot with PCIe x4 for NVMe SSD storage
or SATA signal for NGFF SSD.
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
GND
2
+3.3V
3
GND
4
+3.3V
5
PEX3_RX-
6
NC
7
PEX3_RX+
8
NC
9
GND
10
LED_1#
11
PEX3_TX-
12
+3.3V
13
PEX3_TX+
14
+3.3V
15
GND
16
+3.3V
17
PEX2_RX-
18
+3.3V
19
PEX2_RX+
20
NC
21
GND
22
NC
23
PEX2_TX-
24
NC
25
PEX2_TX+
26
NC
27
GND
28
NC
29
PEX1_RX-
30
NC
31
PEX1_RX+
32
NC
33
GND
34
NC
35
PEX1_TX-
36
NC
37
PEX1_TX+
38
M.2_DEVSLP
39
GND
40
NC
41
PEX0_RX-
42
NC
43
PEX0_RX+
44
NC
45
GND
46
NC
47
PEX0_TX-
48
NC
49
PEX0_TX+
50
PERST#
51
GND
52
CLKREQ#
53
PEX0_REFCLKn
54
PEWAKE#
55
PEX0_REFCLKp
56
NC
57
GND
58
NC
59
CONNECTOR
Key M
60
CONNECTOR
Key M
61
CONNECTOR
Key M
62
CONNECTOR
Key M
63
CONNECTOR
Key M
64
CONNECTOR
Key M
65
CONNECTOR Key
M
66
CONNECTOR Key
M
67
NC
68
NC
69
NC
70
+3.3V
71
GND
72
+3.3V
73
GND
74
+3.3V
75
GND

IMB760 LGA4189 EATX Motherboard
14 Board and Pin Assignments
2.5.8 Front Panel Header (CN18)
This is a front panel header (7x2-pin p=2.54mm).
Note
[*]: The buzzer on the motherboard will be active when pin 2 and pin 4 are
connected; the external speaker on the chassis will be active when pin 2
and pin 4 are open.
Pin
Signal
1
Power LED+
2
SPK- [*]
3
GND
4
BUZZER
5
Power LED-
6
N/C
7
N/C
8
SPK+ [*]
9
PWR-
10
PWR+
11
RESET-
12
RESET+
13
HD LED-
14
HD LED+