AXIOMTEK IMB524 User manual

IMB523 / 524 / 525
Intel®Socket 1151 CoreTM i7/ i5/ i3 /
Pentium®/ Celeron®
Processors ATX Industrial
Motherboard
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
Wrong type of batteries may cause 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 2020 Axiomtek Co., Ltd.
All Rights Reserved
April 2020, Version A5
Printed in Taiwan

iii
ESD Precautions
Computer boards have integrated circuits sensitive to static electricity. To prevent chipsets
from electrostatic discharge damage, please take care of the following jobs with 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
Chapter 1 Introduction............................................. 1
1.1 Features................................................................................................2
1.2 Specifications........................................................................................2
1.3 Packing list............................................................................................4
Chapter 2 Board and Pin Assignments.................... 5
2.1 Board Layout.........................................................................................5
2.2 Rear I/O.................................................................................................7
2.3 Block Diagram.......................................................................................8
2.4 Jumper Settings..................................................................................10
2.4.1 Clear CMOS (JP8) .....................................................................................11
2.4.2 AT/ATX Mode Select (JP9).........................................................................11
2.4.3 COM1 Mode Select (JP4, JP5, JP6)......................................................... 12
2.4.4 COM2 Mode Select (JP1, JP2, JP3)......................................................... 12
2.4.5 Temperature Sensor Source Select .......................................................... 12
2.5 Connectors..........................................................................................13
2.5.1 Mini PCI-Express Connector (CN22) (Optional) ....................................... 14
2.5.2 Keyboard and PS/2 Mouse Connector (CN1)........................................... 14
2.5.3 Front Panel Header (CN24)...................................................................... 15
2.5.4 GPIO Header (CN25)................................................................................ 15
2.5.5 COM1 Connector (COM1) ........................................................................ 16
2.5.6 LAN and USB 3.1 Connectors (CN5 and CN6) ........................................ 17
2.5.7 Audio Jack (CN4)...................................................................................... 17
2.5.8 Front Audio Header (CN11)....................................................................... 18
2.5.9 COM Headers (COM2 ~ COM6)............................................................... 18
2.5.10 External Sensor Header (CN15) ............................................................... 18
2.5.11 DisplayPort and HDMI Connector (CN2) .................................................. 19
2.5.12 Internal USB Headers (CN16~CN17, CN20, USB1) ................................ 19
2.5.13 SATA3.0 Connectors (SATA1 ~ SATA6)................................................... 20
2.5.14 SMBus Header (CN28) ............................................................................. 20
2.5.15 Voltage Monitor Header (CN27)................................................................ 20
2.5.16 Power Input Connectors (ATX1 and CN26).............................................. 21
2.5.17 PCI-Express x4 Slots (CN12 and CN13) .................................................. 22
2.5.18 Fan Connectors (FAN1~FAN3)................................................................. 23
2.5.19 Internal USB 3.1 Gen1 Connector (CN21)................................................ 24
2.5.20 SIM Card Slots (CN19) (Optional)............................................................. 24

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2.5.21 VGA and DVI-D Connector (CN3)............................................................. 25
2.5.22 TPM Pin Header (CN23)........................................................................... 26
2.5.23 Internal Mouse Connector (CN9) .............................................................. 26
2.5.24 Internal Keyboard Connector (CN8).......................................................... 26
2.5.25 DIMM Sockets (DIMM1 ~ DIMM4)............................................................ 27
Chapter 3 Hardware Description ........................... 29
3.1 Microprocessors..................................................................................29
3.2 BIOS....................................................................................................29
3.3 System Memory..................................................................................29
Chapter 4 AMI BIOS Setup Utility .......................... 31
4.1 Starting................................................................................................31
4.2 Navigation Keys..................................................................................31
4.3 Main Menu ..........................................................................................33
4.4 Advanced Menu..................................................................................34
4.5 Chipset Menu......................................................................................47
4.6 Security Menu .....................................................................................56
4.7 Boot Menu...........................................................................................57
4.8 Save & Exit Menu................................................................................58
Appendix A Watchdog Timer................................... 61
About Watchdog Timer...................................................................................61
How to Use Watchdog Timer .........................................................................61
Appendix B TPM Module Installation...................... 63
Appendix C iAMT Settings ...................................... 67
Entering Management Engine BIOS Extension (MEBx) ................................67
Set and Change Password ............................................................................67
iAMT Settings.................................................................................................69
iAMT Web Console........................................................................................72
Appendix D Configuring SATA for RAID .................. 75
Configuring SATA Hard Drive(s) for RAID Function .......................................75
Appendix E Digital I/O ............................................. 83
Digital I/O Software Programming..................................................................83

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IMB523 / 524 / 525 LGA1151 ATX Motherboard
Introduction 1
Chapter 1
Introduction
The IMB523 / 524 / 525 is an advanced ATX industrial motherboard based on the 8th
Generation Intel® Core™ i7/ i5/ i3/ Pentium® and Celeron® processors (Coffeelake) in an
LGA1151 socket and comes with an Intel® Q370 / H310 / C246 chipset. Specially designed for
optimal computing and visual performance, the IMB523 / 524 / 525 motherboard is an ideal
solution for major industry applications ranging from financial modeling to designing complex
buildings and vehicles. With its built-in Intel® HD Graphics GFX, this industrial grade
motherboard delivers superb 3D visual performance and supports triple display through DVI-D,
HDMI and VGAports to meet professional-grade CAD and media/entertainment needs.
In addition, the IMB523 / 524 / 525 supports Intel® Turbo Boost 2.0 technology, Intel®
Hyper-Threading technology, Intel® HD Graphics with DX11, 64GB DDR4 2400/2666MHz
memory (Q370 / C246), 32 GB DDR4 2400/2666MHz memory (H310), and a PCI-Express 3.0
x16 slot. It also features Intel® Active Management Technology 12 (iAMT) (Q370 / C246),
SATA RAID, as well as PCI Express expansion interfaces, making it specifically suited for
applications with added security features.

IMB523 / 524 / 525 LGA1151 ATX Motherboard
2 Introduction
1.1 Features
LGA1151 socket 8th Generation Intel® Core™ i7/i5/i3, Pentium® and Celeron®
processors (Coffeelake) up to 95W
4 x DDR4 2400/2666MHz DIMM with maximum memory capacity up to 64GB (max. 16GB
per slot) (Q370 / C246)
2 x DDR4 2400/2666MHz DIMM with maximum memory capacity up to 32GB (max. 16GB
per slot) (H310)
DVI-D, HDMI, Displayport and VGA with triple view support (Q370 / C246)
DVI-D, HDMI, Displayport and VGA with double view support (H310)
6 x SATA-600 RAID 0/1/5/10 (Q370 / C246)
4 x SATA-600 (H310)
2 x USB3.1 (Gen2), 4 x USB 3.1 (Gen1) and 7 x USB 2.0 ports (Q370 / C246)
4 x USB 3.1 (Gen1) and 5 x USB 2.0 ports (H310)
1 x SIM slot (Optional)
PCI Express Mini Card support (Optional)
1.2 Specifications
CPU
LGA1151 Socket 8th Generation Intel®Core™ i7/ i5/ i3, Pentium®and Celeron®
processor.
Chipset
Intel®Q370. (IMB523)
Intel®H310. (IMB524)
Intel®C246. (IMB525)
BIOS
AMI BIOS.
System Memory
Q370:
4 x 288-pin DIMM sockets.
Maximum 64GB DDR4 memory (max. 16GB per slot).
Supports 2400/2666MHz.
H310:
2 x 288-pin DIMM sockets.
Maximum 32GB DDR4 memory (max. 16GB per slot).
Supports 2400/2666MHz.
C246:
4 x 288-pin DIMM sockets.
Maximum 64GB DDR4 memory (max. 16GB per slot).
Supports 2400/2666MHz.
Supports the memory with ECC function.
Onboard Multi I/O
1 x PS/2 keyboard and mouse.
Six serial ports:
- 4 x RS-232 (internal box headers).
- 2 x RS-232/422/485 (one in rear I/O, and the other in internal box header).

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Introduction 3
USB Interface
Q370 / C246:
2 x USB3.1(Gen2) ports.
4 x USB 3.1(Gen1) ports.
7 x USB 2.0 ports.
H310:
4 x USB 3.1(Gen1) ports.
5 x USB 2.0 ports.
Ethernet
LAN1: 1000/100/10Mbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot
ROM, iAMT (Q370 / C246) with Intel®i219LM.
LAN2: 1000/100/10Mbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot
ROM with Intel®i211AT.
Serial ATA
Q370 / C246:
6 x SATAIII with RAID 0/1/5/10.
H310:
4 x SATAIII.
Audio
Realtek ALC662 HDA Codec.
Supports MIC-in/line-in/line-out.
Display
1 x 15-pin D-Sub as VGA connector. Resolution max. up to 1920x1200 @60Hz.
1 x HDMI 1.4b with max. resolution up to 4096x2160 @24Hz.
1 x Displayport with max. resolution up to 4096 x 2304 @60Hz, Do not supports
DP++.
1 x DVI-D with resolution max. up to 1920×1200 @60Hz.
Expansion Interface
Q370 / C246:
1 x PCI-Express x16 slot.(without bifurcation)
2 x PCI-Express x4 slots.
4 x PCI slots.
1 x Mini PCIe connector w/ SIM slot (Optional).
H310:
1 x PCI-Express x16 slot. (without bifurcation)
2 x PCI-Express x4 slots.(with PCIe x1 signal)
4 x PCI slots.
Power Input
One ATX power input connector.
One 12V ATX power input connector for CPU Power.
Operating Temperature
0°C ~ 60°C.
Storage Temperature
-20°C ~ 75°C.
Form Factor
305 x 244mm.
Note
All specifications and images are subject to change without notice.

IMB523 / 524 / 525 LGA1151 ATX 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
1 x Driver DVD

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Layout
IMB523 / 525 Top side

IMB523 / 524 / 525 LGA1151 ATX Motherboard
6 Board and Pin Assignments
IMB524 Top side

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Board and Pin Assignments 7
2.2 Rear I/O
I/O side
I/O bracket

IMB523 / 524 / 525 LGA1151 ATX Motherboard
8 Board and Pin Assignments
2.3 Block Diagram
IMB523 / 525

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Board and Pin Assignments 9
IMB524

IMB523 / 524 / 525 LGA1151 ATX Motherboard
10 Board and Pin Assignments
2.4 Jumper Settings
Pin description
Ajumper 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 applying power to the IMB523 / 524 / 525 series, 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 power before changing any default jumper settings.
Jumper
Description
Setting
JP8
Clear CMOS
Default: Normal Operation
1-2 Close
JP9
AT/ATX Power Mode Select
Default: ATX Mode
2-3 Close
JP3, JP6
COM1/2 RS-232/422/485 Mode Select
Default: RS-232
1-2 Close
JP1, JP2
3-5, 4-6 Close
JP4, JP5
3-5, 4-6 Close
JP7
System Temperature Sensor Source Select
Default: Internal Sensor
External Sensor can be installed on CN15
2-3 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 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.

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Board and Pin Assignments 11
2.4.1 Clear CMOS (JP8)
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-enter
data.
2.4.2 AT/ATX Mode Select (JP9)
This 3x1-pin p=2.54mm jumper 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
1-2 close
ATX mode (Default)
2-3 close

IMB523 / 524 / 525 LGA1151 ATX Motherboard
12 Board and Pin Assignments
2.4.3 COM1 Mode Select (JP4, JP5, JP6)
Use these jumpers (3x2-pin p=2.54mm) to set COM1 port to operate in RS-232, RS-422
or RS-485 communication mode.
JP6 JP4 JP5
2.4.4 COM2 Mode Select (JP1, JP2, JP3)
Use these jumpers (3x2-pin p=2.54mm) to set COM1 port to operate in RS-232, RS-422
or RS-485 communication mode.
JP3 JP1 JP2
2.4.5 Temperature Sensor Source Select
Use these jumpers (3x1-pin p=2.54mm) to set temperature sensor source to operate
form external or onboard mode.
Note
An external sensor can be installed at CN15.
Function
Setting
RS-232 mode
(Default)
JP6 1-2 close
JP4 3-5, 4-6 close
JP5 3-5, 4-6 close
RS-422 mode
JP6 3-4, 7-8 close
JP4 1-3, 2-4 close
JP5 1-3, 2-4 close
RS-485 mode
JP6 5-6, 7-8 close
JP4 1-3, 2-4 close
JP5 1-3, 2-4 close
Function
Setting
RS-232 mode
(Default)
JP3 1-2 close
JP1 3-5, 4-6 close
JP2 3-5, 4-6 close
RS-422 mode
JP3 3-4, 7-8 close
JP1 1-3, 2-4 close
JP2 1-3, 2-4 close
RS-485 mode
JP3 5-6, 7-8 close
JP1 1-3, 2-4 close
JP2 1-3, 2-4 close
Function
Setting
External Sensor
1-2 close
Onboard Sensor(Default)
2-3 close

IMB523 / 524 / 525 LGA1151 ATX Motherboard
Board and Pin Assignments 13
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
CN1
PS/2 KB/MS Connector
CN2
DP/HDMI Connector
CN3
DVI-D/ VGA Connector
CN4
Audio Jack
CN5
RJ45 + USB3.1 GEN1 Connector
CN6
RJ45 (iAMT)+ USB3.1 GEN2 Connector
CN8, CN9
Internal PS/2 KB/MS Connector
CN11
Front Audio Header
CN12, CN13
PCI-Express x4 Slots
CN14
PCI-Express x16 Slots
CN15
External Sensor Connector
CN16, CN17, CN20
Internal USB2.0 Headers
CN19
SIM Slot (Optional)
CN21
Internal USB3.1 GEN1 Connector
CN22
Mini PCI-Express Connector (Optional)
CN23
TPM 2.0 Connector (Optional)
CN24
Front Panel Header
CN25
DIO Connector
CN26
24-pin Power Input Connector
CN27
Voltage Monitor Header
CN28
SMBus Header
ATX1
CPU Power Input Connector
COM1
Comport Connector
COM2 ~ COM6
Comport Box Header
FAN1
CPU Fan Connector
FAN2, FAN3
System Fan Connectors
PCI1 ~ PCI4
PCI Slots
SATA1 ~ SATA6
SATA III Connector

IMB523 / 524 / 525 LGA1151 ATX Motherboard
14 Board and Pin Assignments
2.5.1 Mini PCI-Express Connector (CN22) (Optional)
Note
Screw type is M2*0.4.
2.5.2 Keyboard and PS/2 Mouse Connector (CN1)
The board supports a keyboard and mouse interface. Connector CN1 is a DIN connector
for PS/2 keyboard connection via a Y-Cable.
Pin
Signal
CN1
1
Keyboard Data
2
Mouse Data
3
GND
4
VCC
5
Keyboard Clock
6
Mouse Clock
Pin
Signal
Pin
Signal
1
WAKE#
2
+3.3V_DUAL
3
N/C
4
GND
5
N/C
6
+1.5V
7
CLKREQ#
8
UIM_PWR
9
GND
10
UIM_DATA
11
REFCLK-
12
UIM_CLK
13
REFCLK+
14
UIM_RESET
15
GND
16
UIM_VPP
17
N/C
18
GND
19
N/C
20
W_DISABLE#
21
GND
22
PERST#
23
PE_RXN7
24
+3.3V_DUAL
25
PE_RXP7
26
GND
27
GND
28
+1.5V
29
GND
30
SMB_CLK_RESUME
31
PE_TXN7
32
SMB_DATA_RESUME
33
PE_TXP7
34
GND
35
GND
36
USB3-
37
GND
38
USB3+
39
+3.3V_DUAL
40
GND
41
+3.3V_DUAL
42
N/C
43
GND
44
N/C
45
N/C
46
N/C
47
N/C
48
+1.5V
49
N/C
50
GND
51
N/C
52
+3.3V_DUAL