Page 1
IMB520 / 521
Intel® Socket 1151 Core
TM
i7/ i5/ i3 /
Pentium®/ Celeron®
Processors ATX Industrial
Motherboard
User’s Manual
Page 2
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 2019 Axiomtek Co., Ltd.
All Rights Reserved
January 2019, Version A1
Printed in Taiwan
Page 3
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.
Page 4
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 ................................................................................................. 6
2.3 Block Diagram ..................................................................................... 7
2.4 Jumper Settings .................................................................................... 8
2.4.1 Clear CMOS (JP8) ...................................................................................... 9
2.4.2 AT/ATX Mode Select (JP9) .......................................................................... 9
2.4.3 COM1 Mode Select (JP4, JP5, JP6) ......................................................... 10
2.4.4 COM2 Mode Select (JP1, JP2, JP3) ......................................................... 10
2.4.5 Temperature Sensor Source Select (JP7) ................................................. 10
2.5 Connectors .......................................................................................... 11
2.5.1 Keyboard and PS/2 Mouse Connector (CN1) ........................................... 12
2.5.2 Front Panel Header (CN24) ...................................................................... 12
2.5.3 GPIO Header (CN25) ................................................................................ 13
2.5.4 COM1 Connector (COM1) ........................................................................ 13
2.5.5 LAN and USB 3.1 Connectors (CN5 and CN6) ........................................ 14
2.5.6 Audio Jack (CN4) ...................................................................................... 14
2.5.7 Front Audio Header (CN11) ....................................................................... 15
2.5.8 COM Headers (COM2 ~ COM6) ............................................................... 15
2.5.9 External Sensor Header (JP7) .................................................................. 15
2.5.10 DisplayPort and HDMI Connector (CN2) .................................................. 16
2.5.11 Internal USB Headers (CN16~CN17, CN20, USB1) ................................ 16
2.5.12 SATA 3.0 Connectors (SATA1 ~ SATA4) ................................................... 17
2.5.13 SMBus Header (CN28) ............................................................................. 17
2.5.14 Voltage Monitor Header (CN27) ................................................................ 17
2.5.15 Power Input Connectors (ATX1 and CN26) .............................................. 18
2.5.16 PCI-Express x4 Slots (PCIe1~PCIe4) ....................................................... 19
2.5.17 PCI-Express x1 Slots (PCIe5) ................................................................... 20
2.5.18 Fan Connectors (FAN1~FAN3) ................................................................. 20
2.5.19 Internal USB 3.1 Gen1 Connector (CN21) ................................................ 21
2.5.20 VGA and DVI-D Connector (CN3) ............................................................. 21
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v
2.5.21 TPM Pin Header (CN23) ......................................................................... 22
2.5.22 Internal Mouse Connector (CN9) ............................................................ 22
2.5.23 Internal Keyboard Connector (CN8) ........................................................ 22
Chapter 3 Hardware Description ........................... 23
3.1 Microprocessors .................................................................................. 23
3.2 BIOS.................................................................................................... 23
3.3 System Memory .................................................................................. 23
Chapter 4 AMI BIOS Setup Utility .......................... 25
4.1 Starting ................................................................................................ 25
4.2 Navigation Keys .................................................................................. 25
4.3 Main Menu .......................................................................................... 27
4.4 Advanced Menu .................................................................................. 28
4.5 Chipset Menu ...................................................................................... 41
4.6 Security Menu ..................................................................................... 50
4.7 Boot Menu ................................ ................................ ........................... 51
4.8 Save & Exit Menu ................................................................................ 52
Appendix A Watchdog Timer ................................... 55
About Watchdog Timer ................................................................................... 55
How to Use Watchdog Timer ......................................................................... 55
Appendix B TPM Module Installation ....................... 57
Appendix C iAMT Settings ...................................... 61
Entering Management Engine BIOS Extension (MEBx) ................................ 61
Set and Change Password ............................................................................ 61
iAMT Settings ................................................................................................. 63
iAMT Web Console ........................................................................................ 66
Appendix D Configuring SATA for RAID .................. 69
Configuring SATA Hard Drive(s) for RAID Function ....................................... 69
Appendix E Digital I/O ............................................. 77
Digital I/O Software Programming .................................................................. 77
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IMB520 / 521 LGA1151 ATX Motherboard
Introduction 1
Chapter 1
Introduction
The IMB520 / 521 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 chipset. Specially designed for optimal computing and
visual performance, the IMB520 / 521 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 VGA ports to meet
professional-grade CAD and media/entertainment needs.
In addition, the IMB520 / 521 supports Intel® Turbo Boost 2.0 technology, Intel®
Hyper-Threading technology, Intel® HD Graphics with DX11, 64GB DDR4 2400/2666MHz
memory, and a PCI-Express 3.0 x16 slot. It also features Intel® Active Management
Technology 12 (iAMT), SATA RAID, as well as PCI Express expansion interfaces, making it
specifically suited for applications with added security features.
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IMB520 / 521 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)
DVI-D, HDMI, Displayport and VGA with triple view support
4 x SATA-600 RAID 0/1/5/10
2 x USB3.1 (Gen2), 4 x USB 3.1 (Gen1) and 7 x USB 2.0 ports
1.2 Specifications
CPU
LGA1151 Socket 8
th
Generation Intel® Core™ i7/ i5/ i3, Pentium® and Celeron®
processor.
Chipset
Intel
®
Q370. (IMB520)
Intel
®
C246. (IMB521)
BIOS
AMI BIOS.
System Memory
Q370:
4 x 288-pin DIMM sockets.
Maximum 64GB 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).
USB Interface
2 x USB3.1(Gen2) ports.
4 x USB 3.1(Gen1) ports.
7 x USB 2.0 ports.
Ethernet
LAN1: 1000/100/10Mbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot
ROM, iAMT with Intel® i219LM.
LAN2: 1000/100/10Mbps Gigabit/Fast Ethernet supports Wake-on-LAN, PXE Boot
ROM with Intel® i211AT.
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IMB520 / 521 LGA1151 ATX Motherboard
Introduction 3
Serial ATA
4 x SATAIII with RAID 0/1/5/10.
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
1 x PCI-Express x16 slot.
4 x PCI-Express x4 slots.
1 x PCI-Express x1 slots.
1 x PCI slots.
Power Input
1 x ATX power input connector.
1 x 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.
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IMB520 / 521 LGA1151 ATX Motherboard
4 Board and Pin Assignments
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
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 5
Chapter 2
Board and Pin Assignments
2.1 Board Layout
Top side
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IMB520 / 521 LGA1151 ATX Motherboard
6 Board and Pin Assignments
2.2 Rear I/O
I/O side
I/O bracket
Page 13
IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 7
2.3 Block Diagram
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IMB520 / 521 LGA1151 ATX 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 applying power to the IMB520 / 521 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 2-3
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 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.
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 9
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
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IMB520 / 521 LGA1151 ATX Motherboard
10 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 (JP7)
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 2-3.
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
Onboard Sensor(Default)
1-2 close
External Sensor
2-3 close
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 11
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
CN14
PCI-Express x16 Slots
PCIe1 ~ PCIe4
PCI-Express x4 Slots
PCI1
PCI Slots
PCIe5
PCI-Express x1 Slots
CN15
External Sensor Connector
CN16, CN17, CN20
Internal USB2.0 Headers
CN21
Internal USB3.1 GEN1 Connector
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 ~ SATA4
SATA III Connector
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IMB520 / 521 LGA1151 ATX Motherboard
12 Board and Pin Assignments
2.5.1 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
2.5.2 Front Panel Header (CN24)
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+
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 13
2.5.3 GPIO Header (CN25)
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.
2.5.4 COM1 Connector (COM1)
This is a high rise 9-pin D-Sub connector for COM1 serial port interface. The pin
assignments of RS-232/422/485 are listed in the table below.
Note
[*]
: Signals of COM1 can be RS-232/422/485 by selecting JP4, JP5 and JP6
(see section 2.4.3).
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
RS-232
[*]
RS-422
[*]
RS-485
[*]
1
DCD#
TX-
485- 2 RXD
TX+
485+
3
TXD
RX+
N/C
4
DTR#
RX-
N/C 5 GND
GND
GND
6
DSR#
N/C
N/C 7 RTS#
N/C
N/C 8 CTS#
N/C
N/C
9
RI#
N/C
N/C
2 4 6 8 10
1 3 5 7 9
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IMB520 / 521 LGA1151 ATX Motherboard
14 Board and Pin Assignments
LAN
USB
2.5.5 LAN and USB 3.1 Connectors (CN5 and CN6)
The motherboard comes with two high performance plug and play Ethernet interfaces
(RJ-45) which are 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 Gen2 (CN6) or USB3.1 Gen1 (CN5)
connectors on the rear I/O are for installing USB peripherals such as a keyboard, mouse,
scanner, etc.
Note
Speed LED turns orange for 1000Mbps or green for 100Mbps. The light
is off for 10Mbps.
CN6 supports AMT and USB3.1 GEN 2 when the chipset is customized
into Intel® Q370 & C246. Both CN5 and CN6 support Wake-on-LAN.
2.5.6 Audio Jack (CN4)
Install an audio driver, and then attach audio devices to CN4.
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
Pin
USB Signal
Pin
USB Signal
1
USB3_POWER
2
USB1 -
3
USB1 +
4
GND
5
USB3_SSRX1-
6
USB3_SSRX1+
7
GND
8
USB3_SSTX1-
9
USB3_SSTX1+
10
USB3_POWER
11
USB2 -
12
USB2 +
13
GND
14
USB3_SSRX2-
15
USB3_SSRX2+
16
GND
17
USB3_SSTX2-
18
USB3_SSTX2+
Pin Color
Signal
Blue
Line-in
Green
Line-out
Pink
MIC-in
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 15
2.5.7 Front Audio Header (CN11)
This is a front audio header (5x2-pin p=2.00mm) for convenient connection and control
of audio devices.
2.5.8 COM Headers (COM2 ~ COM6)
The motherboard comes with 5x2-pin p=2.54mm headers for COM2~COM6 serial port
interfaces.
COM2~COM6:
COM2 ~ COM6
2.5.9 External Sensor Header (JP7)
The external sensor header is an 1x3-pin p=2.54mm header. The function of JP7 is to
connect an external sensor.
Pin
Signal
Pin
Signal
1
MIC_IN
2
GND
3
LINE_IN_L
4
GND
5
LINE_IN_R
6
GND
7
AUD_OUT_L
8
GND
9
AUD_OUT_R
10
GND
Pin
Signal
Pin
Signal
1
DCD#
2
DSR#
3
RXD#
4
RTS#
5
TXD#
6
CTS#
7
DTR#
8
RI# 9 GND
10
N/C
Pin
Signal
1
Sys_Temp
2
GND
9
1
10
2
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IMB520 / 521 LGA1151 ATX Motherboard
16 Board and Pin Assignments
CN2A
CN2B
2.5.10 DisplayPort and HDMI Connector (CN2)
CN2 is a double-deck connector comprising an upper connector for DisplayPort (CN2A)
and a lower connector for HDMI (CN2B).
2.5.11 Internal USB Headers (CN16~CN17, CN20, USB1)
These are 5x2-pin p=2.54mm headers for USB 2.0 interface.
The USB1 is a Type-A 180D connector for USB2.0 signal.
Pin
Signal
Pin
Signal
1
LANE 0
21
DATA2
2
GND
22
GND
3
LANE 0#
23
DATA2#
4
LANE 1
24
DATA1
5
GND
25
GND
6
LANE 1#
26
DATA1#
7
LANE 2
27
DATA0
8
GND
28
GND
9
LANE 2#
29
DATA1#
10
LANE 3
30
Clock
11
GND
31
GND
12
LANE 3#
32
Clock#
13
Detect Pin
33
NC
14
GND
34
NC
15
AUX CH
35
SCL
16
GND
36
SDA
17
AUX CH#
37
GND
18
Hot Plug Detect
38
+5V POWER
19
GND
39
Hot Plug Detect
20
DP_PWR(3.3V)
Pin
Signal
Pin
Signal
1
+5 V_DUAL
2
+5 V_DUAL
3
USB 5, 7, 12-
4
USB 6, 8, 13-
5
USB 5, 7, 12+
6
USB 6, 8, 13+
7
GND
8
GND
10
GND
Pin
Signal
1
+5V_DUAL
2
USB-
3
USB+
4
GND
Page 23
IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 17
2.5.12 SATA 3.0 Connectors (SATA1 ~ SATA4)
These Serial Advanced Technology Attachment (Serial ATA or SATA) connectors are for
SATA 3.0 interface allowing up to 6.0Gb/s data transfer rate. It is a computer bus
interface for connecting to devices such as hard disk drive.
2.5.13 SMBus Header (CN28)
The CN28 (5x1-pin p=2.00mm) is for SMBus (System Management Bus) interface.
2.5.14 Voltage Monitor Header (CN27)
The function of CN27 (8x1-pin p=2.54mm) is for voltage monitoring. It doesn’t supply
power.
Pin
Signal
1
GND
2
SATA_TX+
3
SATA_TX-
4
GND
5
SATA_RX-
6
SATA_RX+
7
GND
Pin
Signal
Pin
Signal
1
SMB_SCL
2
N/C 3 GND
4
SMB_SDA
5
+5V
Pin
Signal
Pin
Signal
1
GND
2
GND
3
VCC5_SB
4
+3.3V
5
-5V 6 +5V 7 -12V
8
+12V
1 2 3
4
Page 24
IMB520 / 521 LGA1151 ATX Motherboard
18 Board and Pin Assignments
2.5.15 Power Input Connectors (ATX1 and CN26)
Steady and sufficient power can be supplied to all components on the motherboard by
connecting the power connector. Please make sure all components and devices are
properly installed before connecting the power connector.
An external power supply plug fits into ATX1 and CN26 in only one orientation. Properly
press down power supply plug until it completely and firmly fits into the connector. Loose
connection may cause system instability.
ATX1 CPU power input connector:
CN26 24-pin power input connector:
Pin
ATX1 Signal
Pin
ATX1 Signal
1
GND
5
+12V
2
GND
6
+12V
3
GND
7
+12V
4
GND
8
+12V
Pin
CN26 Signal
Pin
CN26 Signal
1
3.3V
13
3.3V 2 3.3V
14
-12V
3
GND
15
GND
4
+5V
16
PS_ON
5
GND
17
GND
6
+5V
18
GND
7
GND
19
GND
8
PWR OK
20
-5V 9 5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
3.3V
24
GND
1 4 5 8 1
12
13
24
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 19
2.5.16 PCI-Express x4 Slots (PCIe1~PCIe4)
This motherboard has two PCI-Express x4 slots.
Pin
Signal
Pin
Signal
B1
+12V_PS
A1
GND
B2
+12V_PS
A2
+12V_PS
B3
+12V_PS
A3
+12V_PS
B4
GND
A4
GND
B5
SMB_CLK_RESUME
A5
N/C
B6
SMB_DATA_RESUME
A6
N/C
B7
GND
A7
N/C
B8
+3.3V_PS
A8
N/C
B9
N/C
A9
+3.3V_PS
B10
+3.3V_SB
A10
+3.3V_PS
B11
PCH_WAKE_N
A11
PWRGD
B12
N/C
A12
GND
B13
GND
A13
CLKOUT_PCIE_P5
B14
PCIE1_SLOT1_TX_DP_C
A14
CLKOUT_PCIE_N5
B15
PCIE1_SLOT1_TX_DN_C
A15
GND
B16
GND
A16
PCIE1_SLOT1_RX_DP_C
B17
PCIEX4_SLOT1_PRSNT2_N
A17
PCIE1_SLOT1_RX_DN_C
B18
GND
A18
GND
B19
PCIE2_TX_DP
A19
N/C
B20
PCIE2_TX_DN
A20
GND
B21
GND
A21
PCIE2_RX_DP
B22
GND
A22
PCIE2_RX_DN
B23
PCIE3_TX_DP
A23
GND
B24
PCIE3_TX_DN
A24
GND
B25
GND
A25
PCIE3_RX_DP
B26
GND
A26
PCIE3_RX_DN
B27
PCIE4_TX_DP
A27
GND
B28
PCIE4_TX_DN
A28
GND
B29
GND
A29
PCIE4_RX_DP
B30
N/C
A30
PCIE4_RX_DN
B31
N/C
A31
GND
B32
GND
A32
N/C
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IMB520 / 521 LGA1151 ATX Motherboard
20 Board and Pin Assignments
2.5.17 PCI-Express x1 Slots (PCIe5)
This motherboard has two PCI-Express x1 slots.
Pin
Signal
Pin
Signal
B1
+12V_PS
A1
GND
B2
+12V_PS
A2
+12V_PS
B3
+12V_PS
A3
+12V_PS
B4
GND
A4
GND
B5
SMB_CLK_RESUME
A5
N/C
B6
SMB_DATA_RESUME
A6
N/C
B7
GND
A7
N/C
B8
+3.3V_PS
A8
N/C
B9
N/C
A9
+3.3V_PS
B10
+3.3V_SB
A10
+3.3V_PS
B11
PCH_WAKE_N
A11
PWRGD
B12
N/C
A12
GND
B13
GND
A13
CLKOUT_PCIE_P8
B14
PCIE5_SLOT_TX_DP_C
A14
CLKOUT_PCIE_N8
B15
PCIE5_SLOT_TX_DN_C
A15
GND
B16
GND
A16
PCIE5_SLOT_RX_DP_C
B17
N/C
A17
PCIE5_SLOT_RX_DN_C
B18
GND
A18
GND
2.5.18 Fan Connectors (FAN1~FAN3)
This motherboard has three fan connectors. Find fan speed option(s) at BIOS Setup
Utility: Advanced\HW Monitor\PC Health Status.
The FAN1 (4x1-pin p=2.54mm) is for the the CPU fan connector.
The FAN2 and FAN3 (4x1-pin p=2.54mm) are for system fan connectors.
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
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IMB520 / 521 LGA1151 ATX Motherboard
Board and Pin Assignments 21
2.5.19 Internal USB 3.1 Gen1 Connector (CN21)
The CN21 is a 19-pin internal connector for installing versatile USB 3.1 compliant
peripherals.
2.5.20 VGA and DVI-D Connector (CN3)
CN3 is a double-deck connector comprising an lower connector for DVI-D port and a
upper connector for VGA port.
The high rise DVI-D connector provides transmission of fast and high quality video
signals between a source device (graphic card) and a display device (monitor).
The 15-pin D-Sub connector is commonly used for VGA display.
Pin
Signal
Pin
Signal
1
VBUS0
2
SSRX5-
19
VBUS1
3
SSRX5+
18
SSRX6-
4
GND
17
SSRX6+
5
SSTX5-
16
GND
6
SSTX5+
15
SSTX6-
7
GND
14
SSTX6+
8
USB10-
13
GND
9
USB10+
12
USB11-
10
ID
11
USB11+
Pin
Signal
Pin
Signal
1
TX2-
2
TX2+
3
Ground
4
NC 5 NC 6 DVI_SPD_CLK
7
DVI_SPD DATA
8
NC
9
TX1-
10
TX1+
11
Ground
12
NC
13
NC
14
VGAVCC
15
Ground
16
HPDETECT
17
TX0-
18
TX0+
19
Ground
20
NC
21
NC
22
Ground
23
TXC+
24
TXC-
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
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22 Board and Pin Assignments
2.5.21 TPM Pin Header (CN23)
These are 7x2-pin p=2.0mm headers for SPI interface with an AX93515 TPM module.
Note
The screw type is M2*0.4.
2.5.22 Internal Mouse Connector (CN9)
The internal mouse (PS/2 type) interface is available through a 5-pin connector.
2.5.23 Internal Keyboard Connector (CN8)
The internal keyboard (PS/2 type) interface is available through a 5-pin connector.
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
Pin
Signal
1
Mouse Clock
2
Mouse Data
3
NC 4 GND
5
+5V level
Pin
Signal
1
Keyboard Clock
2
Keyboard Data
3
NC 4 GND
5
+5V level
13 11 9 7 5 3 1
14 12 10 8 6 4 2
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IMB520 / 521 LGA1151 ATX Motherboard
Hardware Description 23
Chapter 3
Hardware Description
3.1 Microprocessors
The IMB520 / 521 series supports Intel® Core™ i7/ i5/ i3, Pentium® and Celeron® processors,
which enable your system to operate under Windows® 10 and Linux environments. The
system performance depends on the microprocessor. Make sure all correct settings are
arranged for your installed microprocessor to prevent the CPU from damages.
Note
Caution: Make sure turnoff power supply, before you install the processor
into the CPU socket.
3.2 BIOS
The IMB520 / 521 series uses AMI Plug and Play BIOS.
3.3 System Memory
The IMB520 / 521 supports four 288-pin DDR4 DIMM sockets for maximum memory capacity
up to 64GB DDR4 SDRAMs. The memory module comes in sizes of 2GB, 4GB, 8GB and
16GB.
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24 Hardware Description
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AMI BIOS Setup Utility 25
Chapter 4
AMI BIOS Setup Utility
The AMI UEFI BIOS provides users with a built-in setup program to modify basic system
configuration. All configured parameters are stored in a flash chip to save the setup information
whenever the power is turned off. This chapter provides users with detailed description about
how to set up basic system configuration through the AMI BIOS setup utility.
4.1 Starting
To enter the setup screens, follow the steps below:
1. Turn on the computer and press <Del> during the Power On Self Test (POST) to enter
BIOS setup, otherwise, POST will continue with its test routines.
2. Once you enter the BIOS, the main BIOS setup menu displays. You can access the other
setup screens from the main BIOS setup menu, such as the Advanced and Chipset
menus.
Note
If your computer cannot boot after making and saving system changes with BIOS
setup, you can restore BIOS optimal defaults by setting JP8 (see section 2.4.1).
It is strongly recommended that you should avoid changing the chipset’s defaults. Both AMI
and your system manufacturer have carefully set up these defaults that provide the best
performance and reliability.
4.2 Navigation Keys
The BIOS setup/utility uses a key-based navigation system called hot keys. Most of the BIOS
setup utility hot keys can be used at any time during the setup navigation process. These keys
include <F1>, <F2>, <Enter>, <ESC>, <Arrow> keys, and so on.
Note
Some of the navigation keys differ from one screen to another.
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26 AMI BIOS Setup Utility
Hot Keys
Description
Left/Right
The Left and Right <Arrow> keys allow you to select a setup screen.
Up/Down
The Up and Down <Arrow> keys allow you to select a setup screen or sub
screen.
Enter
The <Enter> key allows you to display or change the setup option listed for a
particular setup item. The <Enter> key can also allow you to display the setup
sub screens.
+ Plus/Minus
The Plus and Minus <Arrow> keys allow you to change the field value of a
particular setup item.
F1
The <F1> key allows you to display the General Help screen.
F2
The <F2> key allows you to Load Previous Values.
F3
The <F3> key allows you to Load Optimized Defaults.
F4
The <F4> key allows you to save any changes you have made and exit Setup.
Press the <F4> key to save your changes.
Esc
The <Esc> key allows you to discard any changes you have made and exit the
Setup. Press the <Esc> key to exit the setup without saving your changes.
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AMI BIOS Setup Utility 27
4.3 Main Menu
When you first enter the setup utility, you will enter the Main setup screen. You can always
return to the Main setup screen by selecting the Main tab. System Time/Date can be set up as
described below. The Main BIOS setup screen is shown below.
BIOS Information
Display the BIOS information.
System Date/Time
Use this option to change the system time and date. Highlight System Time or System Date
using the <Arrow> keys. Enter new values through the keyboard. Press the <Tab> key or the
<Arrow> keys to move between fields. The date must be entered in MM/DD/YY format. The
time is entered in HH:MM:SS format.
Access Level
Display the access level of current user.
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28 AMI BIOS Setup Utility
4.4 Advanced Menu
The Advanced menu also allows users to set configuration of the CPU and other system
devices. You can select any of the items in the left frame of the screen to go to the sub menus:
► ACPI Settings
► Trusted Computing
► Platform Misc Configuration
► CPU Configuration
► SATA and RST Configuration
► NCT6106D Super IO Configuration
► NCT6106D Hardware Monitor
► PCH-FW configuration
► AMT configuration
► USB Configuration
► PCI Subsystem Settings
► CSM Configuration
► Serial Port Console Redirection
For items marked with “”, please press <Enter> for more options.
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AMI BIOS Setup Utility 29
ACPI Settings
This screen shows ACPI Settings.
ACPI Sleep State
Select the ACPI (Advanced Configuration and Power Interface) sleep state. Configuration
options are Suspend Disabled and S3 (Suspend to RAM). The default is S3 (Suspend to
RAM). This option selects the ACPI sleep state the system will enter when the suspend
button is pressed.
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30 AMI BIOS Setup Utility
AMT BIOS Features
Enable or disable Active Management Technology BIOS features. The default is Enabled.
Trusted Computing
Enable or disable security device support.
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AMI BIOS Setup Utility 31
CPU Configuration
This screen shows CPU information, and you can change the value of the selected
option.
Hardware Prefetcher
Turn on/off the MLC streamer prefetcher.
Adjacent Cache Line Prefetch
Turn on/off prefetching of adjacent cache lines.
Hyper-Threading
Enable or disable Hyper-threading Technology, which allows a single physical processor to
multitask as multiple logical processors. When disabled, only one thread per enabled core
is enabled.
Intel Virtualization Technology
Enable or disable Intel Virtualization Technology. When enabled, a VMM (Virtual Machine
Mode) can utilize the additional hardware capabilities. It allows a platform to run multiple
operating systems and applications independently, hence enabling a single computer
system to work as several virtual systems.
Active Processor Cores
Number of cores to enable in each processor package.
AES
Enable / Disable AES (Advanced Encryption Standard)
Boot performance mode
Select the performance state that the BIOS will set starting from reset vector.
Intel (R) SpeedStep(tm)
Allows more than two frequency ranges to be supported.
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32 AMI BIOS Setup Utility
Turbo Mode
Enable/Disable processor Turbo Mode (requires EMTTM enabled too). AUTO means
enabled, unless max turbo ratio is bigger than 16 - SKL A0 W/A.
C states
Enable/Disable CPU Power Management, which allows CPU to go to power saving
C-states when it's not 100% utilized.
Compatibility Support Module (CSM) Configuration
This screen displays CSM information.
CSM Support
Enabled / Disable CSM Support.
GateA20 Active
UPON REQUEST - GA20 can be disabled using BIOS services. ALWAYS - do not allow
disabling GA20. This option is useful when any RT code is executed above 1MB.
Option ROM Messages
Set display mode for Option ROM.
INT19 Trap Response
BIOS reaction on INT19 trapping by Option ROM: IMMEDIATE - execute the trap right
away; POSTPONED - execute the trap during legacy boot.
Boot option filter
This option controls Legacy/UEFI ROMs priority.
Storage
Controls the execution of UEFI and Legacy Storage OpROM.
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AMI BIOS Setup Utility 33
Video
Controls the execution of UEFI and Legacy Video OpROM.
Other PCI devices
Determines OpROM execution policy for devices other than Network, Storage, or Video.
NCT6106D Hardware Monitor
This screen monitors hardware health status.
This screen displays the temperature of system and CPU, cooling fans speed in RPM and
system voltages (VCC_CPU, DDR, +12V, +5V and +3.3V).
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34 AMI BIOS Setup Utility
NCT6106D Super IO Configuration
You can use this screen to select options for the Super IO Configuration, and change the
value of the selected option. A description of the selected item appears on the right side of
the screen. For items marked with “”, please press <Enter> for more options.
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AMI BIOS Setup Utility 35
Serial Port 1~6 Configuration
Use these items to set parameters related to serial port 1~6.
PCH-FW Configuration
This screen displays ME Firmware information.
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36 AMI BIOS Setup Utility
PCI Subsystem Settings
This screen allows you to set PCI Subsystem mode.
PCI Latency Timer
Set the value to be programmed into PCI Latency Timer Register.
VGA Palette Snoop
Enables or Disables VGA Palette Registers Snooping.
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AMI BIOS Setup Utility 37
Platform Misc Configuration
This screen allows you to set Platform Misc Configuration.
Native PCIE Enable
Bit - PCIe Native * control\n 0 - ~ Hot Plug\n 1 - SHPC Native Hot Plug control\n 2 - ~
Power Management Events\n 3 - PCIe Advanced Error Reporting control\n 4 - PCIe
Capability Structure control\n 5 - Latency Tolerance Reporting control.
Native ASPM
Enabled - OS Controlled ASPM, Disabled - BIOS Controlled ASPM.
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38 AMI BIOS Setup Utility
SATA Configuration
During system boot up, the BIOS automatically detects the presence of SATA devices. In
the SATA Configuration menu, you can see the hardware currently installed in the SATA
ports.
SATA Controller(s)
Enable or disable the SATA Controller feature. The default is Enabled.
SATA Mode Selection
Determine how SATA controller(s) operate. Operation mode options are RAID and AHCI
(Advanced Host Controller Interface). The default is the AHCI mode.
SATA Controller Speed
Indicates the maximum speed the SATA controller can support.
Hot Plug
Designates this port as Hot Pluggable.
Spin Up Device
If enabled for any of ports, Staggerred Spin Up will be performed and only the drives that
have this option enabled will spin up at boot. Otherwise all drives spin up at boot.
SATA Device Type
Identify the SATA port is connected to a solid-state drive (SSD) or hard disk drive (HDD).
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AMI BIOS Setup Utility 39
Serial Port Console Redirection
This screen allows you to set serial port console redirection.
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40 AMI BIOS Setup Utility
USB Configuration
This screen shows USB configuration.
USB Devices
Displays all detected USB devices.
Legacy USB Support
Enables Legacy USB support. AUTO option disables legacy support if no USB devices are
connected.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership
change should be claimed by XHCI driver.
USB Mass Storage Driver Support
Enable/Disable USB Mass Storage Driver Support.
USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.
Device reset time-out
USB mass storage device Start Unit command time-out.
Device power-up delay
Maximum time the device will take before it properly reports itself to the Host Controller.
'Auto' uses default value: for a Root port it is 100 ms, for a Hub port the delay is taken from
Hub descriptor.
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AMI BIOS Setup Utility 41
4.5 Chipset Menu
The Chipset menu allows users to change the advanced chipset settings. You can select any
of the items in the left frame of the screen to go to the sub menus:
► System Agent (SA) Configuration
► PCH-IO Configuration
For items marked with “”, please press <Enter> for more options.
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42 AMI BIOS Setup Utility
System Agent (SA) Configuration
This screen allows users to configure System Agent (SA) parameters. For items marked
with “”, please press <Enter> for more options.
Graphics Configuration
Open the sub menu for parameters related to graphics configuration.
Memory Configuration
Open the sub menu for information related to system memory.
PEG Port Configuration
Open the sub menu for parameters related to PEG port configuration.
VT-d
VT-d capability.
Above 4GB MMIO BIOS assignment
Enable/Disable above 4GB Memory MappedIO BIOS assignment. This is enabled
automatically when Aperture Size is set to 2048MB.
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AMI BIOS Setup Utility 43
Graphics Configuration
This screen shows graphics configuration.
Primary IGFX Boot Display
Select the video device which will be activated during POST (Power-On Self Test). The
default is Auto.
Internal Graphics
Keep IGFX enabled based on the setup options.
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44 AMI BIOS Setup Utility
Memory Configuration
This screen shows system memory information.
PEG Port Configuration
This screen shows PEG Port/POE Port feature information.
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AMI BIOS Setup Utility 45
Max Link Speed
Configure PEG 0:1:0 Max Speed.
PEG Port Feature Configuration
This screen shows PEG port feature configuration.
Detect Non-Compliance Device
Detect Non-Compliance PCI Express Device in PEG.
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46 AMI BIOS Setup Utility
PCH-IO Configuration
This screen allows you to set PCH parameters.
PCH LAN Controller
Enable or disable onboard PCH LAN controller.
Wake on LAN Enable
Enable or disable integrated LAN to wake the system.
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AMI BIOS Setup Utility 47
USB Configuration
This screen shows USB configuration.
XHCI Disable Compliance Mode
Provides options to disable Compliance Mode. Default is FALSE to not disable
Compliance Mode. Set TRUE to disable Compliance Mode.
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48 AMI BIOS Setup Utility
PCI Express Configuration
This screen shows PCI Express configuration.
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AMI BIOS Setup Utility 49
PCIe Speed
Configure PCIe Speed.
ASPM
Set the ASPM Level:\nForce L0s - Force all links to L0s State\nAUTO - BIOS auto
configure\nDISABLE - Disables ASPM.
Detect Non-Compliance Device
Detect Non-Compliance PCI Express Device. If enabled, it will take more time at POST
time.
HD Audio Configuration
This screen shows HD Audio information
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50 AMI BIOS Setup Utility
4.6 Security Menu
The Security menu allows users to change the security settings for the system.
Administrator Password
This item indicates whether an administrator password has been set (installed or
uninstalled).
User Password
This item indicates whether a user password has been set (installed or uninstalled).
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AMI BIOS Setup Utility 51
4.7 Boot Menu
The Boot menu allows users to change boot options of the system.
Setup Prompt Timeout
Number of seconds to wait for setup activation key. 65535(0xFFFF) means indefinite
waiting.
Bootup NumLock State
Use this item to select the power-on state for the keyboard NumLock.
Quiet Boot
Select to display either POST output messages or a splash screen during boot-up.
Launch PXE OpROM policy
Use this item to enable or disable the boot ROM function of the onboard LAN chip when
the system boots up.
Boot Option Priorities
These are settings for boot priority. Specify the boot device priority sequence from the
available devices.
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52 AMI BIOS Setup Utility
4.8 Save & Exit Menu
The Save & Exit menu allows users to load your system configuration with optimal or fail-safe
default values.
Save Changes and Exit
When you have completed the system configuration changes, select this option to leave
Setup and return to Main Menu. Select Save Changes and Exit from the Save & Exit menu
and press <Enter>. Select Yes to save changes and exit.
Discard Changes and Exit
Select this option to quit Setup without making any permanent changes to the system
configuration and return to Main Menu. Select Discard Changes and Exit from the Save &
Exit menu and press <Enter>. Select Yes to discard changes and exit.
Save Changes and Reset
When you have completed the system configuration changes, select this option to leave
Setup and reboot the computer so the new system configuration parameters can take
effect. Select Save Changes and Reset from the Save & Exit menu and press <Enter>.
Select Yes to save changes and reset.
Discard Changes and Reset
Select this option to quit Setup without making any permanent changes to the system
configuration and reboot the computer. Select Discard Changes and Reset from the Save
& Exit menu and press <Enter>. Select Yes to discard changes and reset.
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AMI BIOS Setup Utility 53
Save Changes
When you have completed the system configuration changes, select this option to save
changes. Select Save Changes from the Save & Exit menu and press <Enter>. Select Yes
to save changes.
Discard Changes
Select this option to quit Setup without making any permanent changes to the system
configuration. Select Discard Changes from the Save & Exit menu and press <Enter>.
Select Yes to discard changes.
Restore Defaults
It automatically sets all Setup options to a complete set of default settings when you select
this option. Select Restore Defaults from the Save & Exit menu and press <Enter>.
Save as User Defaults
Select this option to save system configuration changes done so far as User Defaults.
Select Save as User Defaults from the Save & Exit menu and press <Enter>.
Restore User Defaults
It automatically sets all Setup options to a complete set of User Defaults when you select
this option. Select Restore User Defaults from the Save & Exit menu and press <Enter>.
Boot Override
Select a drive to immediately boot that device regardless of the current boot order.
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54 AMI BIOS Setup Utility
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Watchdog Timer 55
Appendix A
Watchdog Timer
About Watchdog Timer
Software stability is a major issue in most applications. Some embedded systems are not
watched by humans for 24 hours. It is usually too slow to wait for someone to reboot when
computer hangs. The systems need to be able to reset automatically when things go wrong.
The watchdog timer gives us that solution.
The watchdog timer is a counter that triggers a system reset when it counts down to zero from
a preset value. The software starts the counter with an initial value and must reset it
periodically. If the counter ever reaches zero which means the software has crashed, the
system will reboot.
How to Use Watchdog Timer
Start
Un-Lock WDT:
O 2E 87 ; Un-lock super I/O
O 2E 87 ; Un-lock super I/O
Select Logic device:
O 2E 07
O 2F 08
Set Second or Minute:
O 2E F0
O 2F N ; N=00 or 08 (See Note below)
Set base timer:
O 2E F1
O 2F M ; M=00,01,02,…FF(Hex) ,Value=0 to 255
WDT counting re-set timer:
O 2E F1
O 2F M ; M=00,01,02,…FF (See Note below)
IF No re-set timer:
; WDT time-out, generate RESET
;IF to disable WDT:
O 2E 30
O 2F 00 ; Can be disabled at any time
Timeout Value Range
1 to 255
Minute / Second
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56 Watchdog Timer
Note:
If N=00h, the time base is set to second.
M = time value
00h: Time-out Disable
01h: Time-out occurs after 1 second
02h: Time-out occurs after 2 seconds
03h: Time-out occurs after 3 seconds
.
.
FFh: Time-out occurs after 255 seconds
If N=08h, the time base is set to minute.
M = time value
00h: Time-out Disable
01h: Time-out occurs after 1 minute
02h: Time-out occurs after 2 minutes
03h: Time-out occurs after 3 minutes
.
.
FFh: Time-out occurs after 255 minutes
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TPM Module Installation 57
Appendix B
TPM Module Installation
The TPM 2.0 (Trusted Platform Module 2.0) module is a modularized design applying to the
IMB520 / 521 and provides enhanced hardware security for the computer. In this appendix you
will learn how to install the TPM 2.0 module into the IMB520 / 521. Please read and follow the
instructions below carefully.
1. Insert TPM module into the SPI interface of motherboard, as illustrated below.
2. There are two ways to confirm whether the TPM Module is installed successfully or not:
a. Enter the BIOS setup menu and go to Trusted Computing. On the first line will show
“TPM2.0 Device Found”.
(In the Advance menu, go to Trusted Computing)
AX93515 TPM
module
TPM SPI interface
TPM module Put On
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58 TPM Module Installation
(In the Trusted Computing section, on the first of line will show “TPM2.0 Device
Found”, if installation is successful.)
b. In the Windows 10 OS environment, enter Device Manager, and select the item of
Security devices. The screen will show “Trusted Platform Module 2.0” if installation is
successful.
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TPM Module Installation 59
c. In the Windows 10 OS environment, enter Control Panel, select the item of BitLocker
Drive Encryption, and enter TPM Administration. The screen will show the
information below if installation is successful.
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60 TPM Module Installation
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iAMT Settings 61
Appendix C
iAMT Settings
The Intel® Active Management Technology (Intel® AMT) utilizes built-in platform capabilities
and popular third-party management and security applications to let IT administrators
remotely discover, repair and better protect their networked computing assets, thus
significantly improving IT management efficiency.
In order to use Intel® AMT you must enter the ME BIOS (<Ctrl + P> during system startup),
change the ME BIOS password, and then select “Intel® iAMT” as the manageability feature.
Entering Management Engine BIOS Extension (MEBx)
1. Go to BIOS to enable the iAMT function.
2. Exit from BIOS after starting iAMT, and press <Ctrl + P> to enter MEBx Setting.
Note: It is advised to press <Ctrl + P> before the screen pops out.
Set and Change Password
1. You will be asked to set a password at first login. The default password is “admin”.
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62 iAMT Settings
2. You will be asked to change the password before setting ME.
3. Confirm your new password while revising. The new password must consist of eight
characters, including at least:
One upper case letter
One lower case letter
One number
One special symbol, such as ‘!’, ‘$’, ‘;’ (except: ‘:’, ‘,’, ‘”’ )
The default value demonstrates an example of a valid password: !!11qqQQ
Underline ( _ ) and space are valid characters for the password, but they won’t make
higher complexity.
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iAMT Settings 63
iAMT Settings
1. Select Intel® AMT configuration and press <Enter>.
2. Select Network Setup to configure iAMT.
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64 iAMT Settings
3. Select TCP/IP to go into Network interface and set it to Enabled. Go into DHCP Mode and
set it to Disabled.
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iAMT Settings 65
4. If DHCP Mode is disabled, complete the following settings:
IP address
Subnet mask
5. Go back to Intel® AMT Configuration, then select Activate Network Access and press
<Enter>.
6. Exit from MEBx after completing the iAMT settings.
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66 iAMT Settings
iAMT Web Console
1. On a web browser, type http://(IP ADDRESS):16992, which connects to iAMT Web.
Example: http://10.1.40.214:16992
2. To log on, you will be required to type in your username and password for access to the
Web.
USER: admin (default value)
PASS: (MEBx password)
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iAMT Settings 67
3. Enter the iAMT Web.
4. Click Remote Control, and select commands on the right side.
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68 iAMT Settings
5. When you have finished using the iAMT Web console, close the Web browser.
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Configuring SATA for RAID 69
Appendix D
Configuring SATA for RAID
Configuring SATA Hard Drive(s) for RAID Function
Before you begin the SATA configuration, please prepare:
Two SATA hard drives (to ensure optimal performance, it is recommended that you use
two hard drives with identical model and capacity). If you do not want to create RAID with
the SATA controller, you may prepare only one hard drive.
Please follow up the steps below to configure SATA hard drive(s):
1. Install SATA hard drive(s) in your system.
2. Enter the BIOS Setup to configure SATA controller mode and boot sequence.
3. Configure RAID by the RAID BIOS.
1. Installing SATA hard drive(s) in your system.
Connect one end of the SATA signal cable to the rear of the SATA hard drive, and the other end
to available SATA port(s) on the board. Then, connect the power connector of power supply to
the hard drive.
2. Configuring SATA controller mode and boot sequence by the BIOS Setup.
You have to make sure whether the SATA controller is configured correctly by system BIOS
Setup and set up BIOS boot sequence for the SATA hard drive(s).
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70 Configuring SATA for RAID
2.1. Turn on your system, and then press the <Del> button to enter BIOS Setup during running
POST (Power-On Self Test). If you want to create RAID, just go to the Advanced Settings
menu/SATA Configuration, select the “SATA Mode Selection”, and press <Enter> for more
options.
A list of options appears, please select “RAID”.
[RAID]
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Configuring SATA for RAID 71
2.2. Under the Boot Settings menu, set DVD-ROM for First Boot Option to boot DVD-ROM
after system restarts.
2.3. Save and exit the BIOS Setup.
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72 Configuring SATA for RAID
3. Configuring RAID by the RAID BIOS.
Enter the RAID BIOS setup utility to configure a RAID array. Skip this step and proceed if you
do not want to create a RAID.
3.1. After the POST memory testing and before the operating system booting, a message
“Press <Ctrl - I> to enter Configuration Utility” shows up. Accordingly, press <Ctrl - I> to
enter the RAID BIOS setup utility.
3.2. After you press <Ctrl - I>, the “Create RAID Volume” screen will appear. If you want to
create a RAID array, select the “Create RAID Volume” option in the Main Menu and press
<Enter>.
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Configuring SATA for RAID 73
3.3. After entering the “Create Volume Menu” screen, you can type the disk array name with
1~16 letters (letters cannot be special characters) in the item “Name”.
3.4. When finished, press <Enter> to select a RAID level. There are four RAID levels: RAID0,
RAID1, RAID5 and RAID10. Select a RAID level and press <Enter>.
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74 Configuring SATA for RAID
3.5. Set the stripe block size. The KB is the standard unit of stripe block size. The stripe block
size can be 4KB to 128KB. After the setting, press <Enter> for the array capacity.
3.6. After setting all the items on the menu, select “Create Volume” and press <Enter> to start
creating the RAID array.
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Configuring SATA for RAID 75
3.7. When prompting for confirmation, press <Y> to create this volume, or <N> to cancel the
creation.
After the creation is completed, you will see detailed information about the RAID Array in the
Disk/Volume Information section, including RAID mode, disk block size, disk name, and disk
capacity, etc.
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76 Configuring SATA for RAID
Delete RAID volume
If you want to delete a RAID volume, select the “Delete RAID Volume” option in the Main Menu.
Press <Enter> and follow on-screen instructions.
Press <Esc> to exit the RAID BIOS utility. Now, you can proceed to install a SATA driver
controller and the operating system.
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Digital I/O 77
Appendix E
Digital I/O
Digital I/O Software Programming
I2C to GPIO PCA9554PW GPIO[3:0] is Output, GPIO[7:4] is Input.
I2C address: 0b0100100x.
IOBASE: 0xF040
Registers:
Command byte
Command
Protocol
Function
0
Read byte
Input port register
1
Read/write byte
Output port register
2
Read/write byte
Polarity inversion register
3
Read/write byte
Configuration register
The command byte is the first byte to follow the address byte during a write transmission. It is
used as a pointer to determine which of the following registers will be written or read.
Register 0: Input port register.
This register is a read-only port. It reflects the incoming logic levels of the pins, regardless of
whether the pin is defined as an input or an output by Register 3. Writes to this register have
no effect.
The default ‘X’ is determined by the externally applied logic level, normally ‘1’ when no external
signal is externally applied because of the internal pull-up resistors.
Bit
Symbol
Access
Value
Description
7
I7
Read only
X
Determined by externally applied
logic level.
6
I6
Read only
X 5 I5
Read only
X 4 I4
Read only
X 3 I3
Read only
X 2 I2
Read only
X 1 I1
Read only
X 0 I0
Read only
X
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78 Digital I/O
Register 1: Output port register.
This register reflects the outgoing logic levels of the pins defined as outputs by Register 3. Bit
values in this register have no effect on pins defined as inputs. Reads from this register return
the value that is in the flip-flop controlling the output selection, not the actual pin value.
Bit
Symbol
Access
Value
Description
7
O7 R 1*
Reflects outgoing logic levels of pins defined as
outputs by Register 3.
6
O6 R 1* 5 O5 R 1* 4 O4 R 1* 3 O3 R 1* 2 O2 R 1* 1 O1 R 1* 0 O0 R 1*
* : Default value
Register 3: Configuration register.
This register configures the directions of the I/O pins. If a bit in this register is set, the
corresponding port pin is enabled as an input with high-impedance output driver. If a bit in this
register is cleared, the corresponding port pin is enabled as an output. At reset, the I/Os are
configured as inputs with a weak pull-up to VDD.
Bit
Symbol
Access
Value
Description
7
C7
R/W
1*
Configure the directions of the I/O pins.
0 = Corresponding port pin enabled as an output.
1 = Corresponding port pin configured as input
(default value).
6
C6
R/W
1*
5
C5
R/W
1* 4 C4
R/W
1* 3 C3
R/W
1* 2 C2
R/W
1* 1 C1
R/W
1*
0
C0
R/W
1*
* : Default value
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