Advantage SIMB-A31 User manual

User Manual
SIMB-A31
Intel® Core™ i7/i5/i3 LGA1150
ATX with DVI, 6 COM, 2 USB 3.0,
7 USB 2.0, Dual LAN

SIMB-A31 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2015
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice.
No part of this manual may be reproduced, copied, translated or transmitted in any
form or by any means without the prior written permission of Advantech Co., Ltd.
Information provided in this manual is intended to be accurate and reliable. However,
Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements
of the rights of third parties, which may result from its use.
Acknowledgements
IBM and PC are trademarks of International Business Machines Corporation.
Intel® Core™ i7/i5/i3, Pentium®, Celeron® is trademark of Intel Corporation
WinBond is a trademark of Winbond Corporation.
All other product names or trademarks are properties of their respective owners.
Part No. 20060A3100 Edition 1
Printed in China Sep 2015

iii SIMB-A31 User Manual
A Message to the Customer
Advantech Customer Services
Each and every Advantech product is built to the most exacting specifications to
ensure reliable performance in the harsh and demanding conditions typical of indus-
trial environments. Whether your new Advantech equipment is destined for the labo-
ratory or the factory floor, you can be assured that your product will provide the
reliability and ease of operation for which the name Advantech has come to be
known.
Your satisfaction is our primary concern. Here is a guide to Advantech’s customer
services. To ensure you get the full benefit of our services, please follow the instruc-
tions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions,
you can easily find answers in your product documentation. These answers are nor-
mally a lot more detailed than the ones we can give over the phone.
So please consult this manual first. If you still cannot find the answer, gather all the
information or questions that apply to your problem, and with the product close at
hand, call your dealer. Our dealers are well trained and ready to give you the support
you need to get the most from your Advantech products. In fact, most problems
reported are minor and are able to be easily solved over the phone.
In addition, free technical support is available from Advantech engineers every busi-
ness day. We are always ready to give advice on application requirements or specific
information on the installation and operation of any of our products.

SIMB-A31 User Manual iv
Declaration of Conformity
FCC Class B
This device complies with the requirements in part 15 of the FCC rules:
Operation is subject to the following two conditions:
This device may not cause harmful interference
This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this device in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his/her own expense. The
user is advised that any equipment changes or modifications not expressly approved
by the party responsible for compliance would void the compliance to FCC regula-
tions and therefore, the user's authority to operate the equipment.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.

v SIMB-A31 User Manual
CPU Compatibility
Intel 4th Gen. Core i7/i5/i3/Pentium/Celeron processor
(LGA1150) sSpec. Power FSB Mfg. Tech Advantech P/N
Intel Core™ i3-4330 Processor (4M Cache, 3.50 GHz) SR00B 95W 5 GT/s 32nm 96MPI3-3.5-4M10T
Intel Core™ i3-4330TE Processor (4M Cache, 2.40 GHz) SR180 35W 5 GT/s 22nm 96MPI3-2.4-4M10T
Intel Core™ i3-4340TE Processor (4M Cache, 2.60 GHz) SR1T5 35W 5 GT/s 22nm 96MPI3-2.6-4M10T
Intel Core™ i3-4350 Processor (4M Cache, 3.60 GHz) SR1PF 54W 5 GT/s 22nm N/A
Intel Core™ i3-4350T Processor (4M Cache, 3.10 GHz) SR1PA 35W 5 GT/s 22nm 96MPI3-3.1-4M10T
Intel Core™ i3-4360 Processor (4M Cache, 3.70 GHz) SR1PC 54W 5 GT/s 22nm 96MPI3-3.7-4M10T
Intel Core™ i5-4460 Processor (6M Cache, up to 3.40 GHz) SR1QK 84W 5 GT/s 22nm N/A
Intel Core™ i5-4570S Processor (6M Cache, up to 3.60 GHz) SR05J 65W 5 GT/s 32nm 96MPI5-2.9-6M10T
Intel Core™ i5-4570TE Processor (4M Cache, up to 3.30 GHz) SR00Q 95W 5 GT/s 32nm 96MPI5-2.7-4M10T
Intel Core™ i5-4590 Processor (6M Cache, up to 3.70 GHz) SR1QJ 84W 5 GT/s 22nm N/A
Intel Core™ i5-4590S Processor (6M Cache, up to 3.70 GHz) SR1QN 65W 5 GT/s 22nm 96MPI5-2.9-6M10T
Intel Core™ i5-4590T Processor (6M Cache, up to 3.00 GHz) SR1S6 35W 5 GT/s 22nm 96MPI5-2.0-6M10T
Intel Core™ i7-4770S Processor (8M Cache, up to 3.90 GHz) SR05Y 65W 5 GT/s 32nm 96MPI7-3.1-8M10T
Intel Core™ i7-4770TE Processor (8M Cache, up to 3.30 GHz) SR05Q 65W 5 GT/s 32nm 96MPI7-2.3-8M10T
Intel Core™ i7-4790 Processor (8M Cache, up to 4.00 GHz) QF4L 65W 5 GT/s 22nm N/A
Intel Core™ i7-4790S Processor (8M Cache, up to 4.00 GHz) SR1QM 65W 5 GT/s 22nm 96MPI7-3.2-8M10T
Intel Celeron Processor G1850 (2M Cache, 2.90 GHz) SR1KH 53W 5 GT/s 22nm N/A
Intel Pentium Processor G3240 (3M Cache, 3.10 GHz) SR1K6 53W 5 GT/s 22nm N/A
Intel Pentium Processor G3320TE (3M Cache, 2.30 GHz) Q2'13 55W 5 GT/s 32nm 96MPP-2.3-3M10T
Intel Pentium Processor G3420 (3M Cache, 3.20 GHz) SR1NB 35W 5 GT/s 22nm 96MPP-3.2G-3M10T
Intel Pentium Processor G3420T (3M Cache, 2.70 GHz) SR10L 55W 5 GT/s 22nm N/A
Intel Pentium Processor G3450 (3M Cache, 3.40 GHz) SR1K2 53W 5 GT/s 22nm N/A
Xeon E3-1225 v3 SR1KX 84W 5 GT/s 22nm 96MPXE-3.2-8M10T
Xeon E3-1268L v3 QEEG 45W 5 GT/s 22nm 96MPXE-2.3-8M10T
Xeon E3-1275 v3 SR14S 84W 5 GT/s 22nm 96MPXE-3.5-8M10T

SIMB-A31 User Manual vi
Memory Compatibility
Ordering Information
Category Speed Capacity Vendor Chip_PN ADVANTECH P/N
DDR3 1066 1GB Transcend SEC 119 BCH9 K4B1G0846G 96D3-1G1066NN-TR
DDR3 1333 1GB Transcend J1108BFBG-DJ-F 96D3-1G1333NN-TR
DDR3 1600 2GB Transcend 2JM77 D9PFJ 96D3-2G1600NNTR
DDR3 1333 2GB Apacer H5TQ2G83BFR H9C 96D3-2G1333NN-AP1
DDR3 1066 2GB Transcend SEC 128 BCH9 K4B1G0846G 96D3-2G1066NN-TR
DDR3 1600 2GB ATP 2HM77 D9PFJ N/A
DDR3 1600 2GB ATP SEC 213 HYK0 K4B2G0846B XFWA-AQ56M64A8BKK0
DDR3 1333 2GB Transcend SEC 425 BCH9 K4B1G0846G 96D3-2G13333NN-TR2
DDR3 1333 4GB Kingston H5TQ2G83AFR H9C N/A
DDR3 1600 4GB Kingston D2568JERDPGGBU N/A
DDR3 1333 4GB Kingston D2568JENCPGD9U N/A
DDR3 1066 4GB Apacer H5TQ2G83BFR-H9C N/A
DDR3 1333 4GB Apacer HYNIX H5TQ2G83BFR-H9C N/A
DDR3 1600 4GB ATP SEC K4B2G0846D N/A
DDR3 1600 4GB ATP SEC 213 HYK0 K4B2G0846D N/A
DDR3 1600 4GB Apacer H5TQ2G83DFR PBC N/A
DDR3 1600 4GB Transcend 4JK17 D9PSH 96D3-4G1600NN-TR
DDR3 1600 8GB Kingston D5128JC2BPGGBU N/A
DDR3 1600 8GB Transcend IZD27 D9PBC N/A
DDR3 1333 8GB Apacer J4208BASE-DJ-F 96D3-8G1333NN-AP
DDR3 1600 8GB Transcend 4CE77 D9QBJ 96D3-8G1600NN-TR
DDR3L 1600 4GB Advantech 4JE77 D9QBJ AQD-D3L4GN16-MG
DDR3L 1600 8GB Advantech SEC 407 HYK0 K4B4G0846B AQD-D3L8GN16-SG
DDR3L 1600 8GB ADATA 3CE77 D9QBJ N/A
Part Number PCH Memory VGA DVI USB
3.0/2.0 COM SIM Card
Holder LAN PCIe
x16 PCIe x1 PCI AMP
SIMB-A31-H8100A1E H81 Non ECC 1 1 2/7 6 1 2 1 2 3 1

vii SIMB-A31 User Manual
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandise
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Initial Inspection
Before you begin installing your motherboard, please make sure that the following
materials have been shipped:
SIMB-A31 Intel LGA1150 Core i7/i5/i3 ATX Motherboard
SATA HDD cable x 1
I/O port bracket x 1
Startup manual x 1
SATA power cable x 1
Warranty card x 1
If any of these items are missing or damaged, contact your distributor or sales repre-
sentative immediately. We have carefully inspected the SIMB-A31 mechanically and
electrically before shipment. It should be free of marks and scratches and in perfect
working order upon receipt. As you unpack the SIMB-A31, check it for signs of ship-
ping damage. (For example, damaged box, scratches, dents, etc.) If it is damaged or
it fails to meet the specifications, notify our service department or your local sales
representative immediately. Also notify the carrier. Retain the shipping carton and
packing material for inspection by the carrier. After inspection, we will make arrange-
ments to repair or replace the unit.

SIMB-A31 User Manual viii

ix SIMB-A31 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ...............................................................................................2
1.2 Features....................................................................................................2
1.3 Specifications............................................................................................2
1.3.1 System..........................................................................................2
1.3.2 Memory.........................................................................................2
1.3.3 Input/Output..................................................................................3
1.3.4 Graphics........................................................................................3
1.3.5 Ethernet LAN ................................................................................3
1.3.6 Industrial features .........................................................................3
1.3.7 Mechanical and environmental specifications...............................3
1.4 Jumpers and Connectors..........................................................................3
Table 1.1: Jumpers......................................................................4
Table 1.2: Connectors.................................................................4
1.5 Board layout: Jumper and Connector Locations.......................................5
Figure 1.1 Jumper and Connector Location ................................5
Figure 1.2 I/O Connectors ...........................................................5
1.6 SIMB-A31 Board Diagram.........................................................................6
Figure 1.3 SIMB-A31 Block Diagram...........................................6
1.7 Safety Precautions....................................................................................6
1.8 Jumper Settings........................................................................................7
1.8.1 How to Set Jumpers......................................................................7
1.8.2 JCMOS1 & JMECLR1: CLEAR CMOS & ME LOCK ....................7
1.8.3 ATX_AT: ATX, AT Mode Selector.................................................7
Table 1.3: ATX_AT: ATX, AT Mode Selector..............................7
1.8.4 WTD_OUT: Watchdog Timer........................................................8
1.8.5 SETCOM2A & SETCOM2B: COM2 RS232/422/485 mode selector
......................................................................................................8
Table 1.4: COM2 RS 232/422/485 mode selector (SETCOM2A/
SETCOM2B)...............................................................8
1.8.6 JSETCOM1, SETCOM2C, JSETCOM3, JSETCOM4: Power
setting for COM1, COM2, COM3, COM4......................................8
1.9 System Memory........................................................................................9
1.10 Memory Installation Procedures................................................................9
1.11 Processor Installation................................................................................9
Chapter 2 Connecting Peripherals ....................11
2.1 Introduction .............................................................................................12
2.2 USB Ports (LAN1_USB12/LAN2_USB34/USB56/USB78/USB9)...........12
Table 2.1: LAN LED Indicator....................................................12
2.3 VGA/ DVI-D Connector ...........................................................................13
2.4 Serial Ports (COM1~COM6) ...................................................................14
2.5 PS/2 Keyboard and Mouse Connector (KBMS1)/Internal PS/2 Keyboard
and Mouse Header (KBMS2)..................................................................15
2.6 CPU Fan Connector (CPU_FAN)............................................................16
2.7 System FAN Connector (SYS_FAN1 & SYS_FAN2)..............................17
2.8 PowerSwitch/HDD LED/SMBUS/Speaker, Power LEDandKeyboardLock
Pin Header (JFP1,JFP2).........................................................................18
2.9 Line In, Line Out, Mic In Connector (AUDIO)..........................................19
2.10 SMBUS Header (SMBUS) ......................................................................20
2.11 Serial ATA Interface (SATA1 ~ SATA3)..................................................21
2.12 Adjust Audio Volume connector (VOL_ADJ1).........................................22
2.13 PCI express x16, PCI express x1, PCI slots...........................................23

SIMB-A31 User Manual x
2.14 Front Headphone Connector (F_AUDIO) ............................................... 24
2.15 ATX Power Connector (ATX_POWER, ATX12V1)................................. 25
2.16 SPI Flash Connector (SPI_CON)............................................................ 26
2.17 General Purpose I/O Connector (GPIO)................................................. 27
2.18 LPC Connector for Debug (LPC)............................................................ 28
Chapter 3 BIOS Operation ................................. 29
3.1 Introduction ............................................................................................. 30
3.2 BIOS Setup............................................................................................. 30
3.3 Main BIOS Setup.................................................................................... 31
3.3.1 Advanced BIOS Features........................................................... 32
3.3.2 PCI Configuration ....................................................................... 33
3.3.3 PCI Express Settings.................................................................. 34
3.3.4 ACPI settings.............................................................................. 35
3.3.5 Trusted Computing..................................................................... 36
3.3.6 S5 RTC wake Settings................................................................ 36
3.3.7 CPU Configuration...................................................................... 37
3.3.8 SATA Configuration.................................................................... 37
3.3.9 USB Configuration...................................................................... 38
3.3.10 Super IO Configuration............................................................... 39
3.3.11 Smart Fan Configuration............................................................. 41
3.4 Chipset Configuration Setting................................................................. 42
3.4.1 PCH-IO Configuration................................................................. 43
3.4.2 USB Configuration...................................................................... 47
3.4.3 PCH Azalia Configuration........................................................... 48
3.4.4 System agent Configuration ....................................................... 48
3.4.5 NB PCIe Configuration ............................................................... 50
3.4.6 Memory Information.................................................................... 51
3.5 Boot Configuration.................................................................................. 51
3.6 Security Setting....................................................................................... 52
3.7 Save & Exit Configuration....................................................................... 53
Chapter 4 Chipset Software Installation Utility 55
4.1 Before You Begin.................................................................................... 56
4.2 Introduction ............................................................................................. 56
4.3 Windows 7 Driver Setup ......................................................................... 57
Chapter 5 VGA Setup ......................................... 59
5.1 Introduction ............................................................................................. 60
5.2 Windows 7 .............................................................................................. 60
Chapter 6 LAN Configuration............................61
6.1 Introduction ............................................................................................. 62
6.2 Installation............................................................................................... 62
6.3 Windows® 7 Driver Setup (Realtek RTL8111G-CG).............................. 62
Appendix A Programming the Watchdog Timer.63
A.1 Programming the Watchdog Timer......................................................... 64
A.1.1 Watchdog Timer Overview ......................................................... 64
A.1.2 Programming the Watchdog Timer............................................. 64
Table A.1: Watchdog Timer Registers....................................... 66

xi SIMB-A31 User Manual
A.1.3 Example Program.......................................................................67
Appendix B I/O Pin Assignments..........................71
B.1 LAN&USB Connector (LAN1_USB12, LAN2_USB34)............................72
Table B.1: LAN&USB Connector (LAN1_USB12, LAN2_USB34).
..................................................................................72
B.2 USB Connector (56/78/9)........................................................................73
Table B.2: USB Connector (USB56/78).....................................73
B.3 VGA,DVI-D Connector (VGA/DVI) ..........................................................74
Table B.3: VGA,DVI-D Connector (VGA/DVI)............................74
B.4 COM Port Connector (COM2).................................................................75
Table B.4: COM Port Connector (COM1) ..................................75
Table B.5: COM Port Connector (COM2) ..................................75
B.5 COM Port Connector (COM3456)...........................................................76
Table B.6: COM Port Connector (COM3456) ............................76
B.6 KB/MS Connector (KBMS1)....................................................................77
Table B.7: KB/MS Connector (KBMS1) .....................................77
B.7 KB/MS Header (KBMS2).........................................................................78
Table B.8: KB/MS Header (KBMS2)..........................................78
B.8 CPU FAN Connector (CPU_FAN)...........................................................78
Table B.9: CPU FAN Connector (CPU_FAN)............................78
B.9 System Fan Connector (SYS_FAN1/SYS_FAN2 ).................................79
Table B.10:System Fan Connector (SYS_FAN1/SYS_FAN2)....79
B.10 Power Switch/HDD LED/SMBUS/Speaker (JFP1)..................................79
Table B.11:Power Switch/HDD LED/SMBUS/Speaker (JFP1)...79
B.11 Audio jack (AUDIO).................................................................................80
Table B.12:Audio Jack (AUDIO).................................................80
B.12 SMBUS Connector (SMBUS)..................................................................80
Table B.13:SMBUS Connector (SMBUS)...................................80
B.13 SATA Connector (SATA1/2/3) ................................................................81
Table B.14:SATA Connector (SATA1/2/3)..................................81
B.14 VOLT Connector (VOLT_CON) ..............................................................82
Table B.15:VOLT Connector (VOLT_CON)................................82
B.15 Front Audio Header (F_AUDIO)..............................................................82
Table B.16:Front Audio Header (F_AUDIO) ...............................82
B.16 ATX 24-pin Power Connector (ATX_POWER) .......................................83
Table B.17:ATX 24-pin Power Connector (ATX_POWER).........83
B.17 ATX 4-pin Power Connector (ATX12V1).................................................84
Table B.18:ATX 4-pin Power Connector (ATX12V1)..................84
B.18 SPI Connector (SPI_CON)......................................................................84
Table B.19:SPI Connector (SPI_CON).......................................84
B.19 GPIO Connector (GPIO) .........................................................................85
Table B.20:GPIO Connector (GPIO)...........................................85
B.20 Debug Port (LPC)....................................................................................85
Table B.21:Debug Port (LPC)....................................................85

SIMB-A31 User Manual xii

Chapter 1
1General Information

SIMB-A31 User Manual 2
1.1 Introduction
SIMB-A31 is designed with the Intel H81 for industrial applications that require both
performance computing and enhanced power management capabilities. The mother-
board supports Intel Core i7-4770S 3.1 GHz/Core i5-4570S 2.9 GHz/Core i7-4770TE
2.3 GHz/Core i5-4570TE 2.7 GHz/Core i3-4330 3.5 GHz/ Pentium G3320TE 2.3 GHz
processor up to 8 MB L3 cache and DDR3 1333/1600 up to 16 GB. It has rich I/O
connectivity of 6 serial ports, 2 USB 3.0, 7 USB 2.0, dual GbE LAN and 3 SATA III/II
ports.
1.2 Features
Rich I/O connectivity: Dual GbE LAN via PCIe x 1 bus, 3 x PCI 32- bit/33 MHz
PCI slots, 2 USB 3.0, 7 USB 2.0, 6 serial ports, 1 PCIe x 16, and 2 PCIe x 1.
Standard ATX form factor with industrial feature: The SIMB-A31 is a full fea-
tured ATX motherboard with balanced expandability and performance.
Wide selection of storage devices: SATA HDD, customers benefit from the
flexibility of using the most suitable storage device for larger capacity.
Optimized integrated graphic solution: With Intel® Flexible Display Interface,
it supports versatile display options and 32-bit 3D graphics engine.
1.3 Specifications
1.3.1 System
CPU: Intel Core 4th i7/i5/i3/Pentium
BIOS: AMI EFI 64 Mbit SPI BIOS
System chipset: Intel® H81
SATA hard disk drive interface: Three on-board SATA connectors with data
transmission rate up to 600/300 MB
1.3.2 Memory
RAM: Up to 16 GB in 2 slots 240-pin DIMM sockets. Supports dual-channel
DDR3 1333/1600 MHz SDRAM.
–Supports non-ECC unbuffered DIMMs and do not support any memory con-
figuration that mixes non-ECC with ECC unbuffered DIMMs.
Note! A 32-bit OS may not fully detect 16 GB of RAM when 16 GB is installed.

3 SIMB-A31 User Manual
Chapter 1 General Information
1.3.3 Input/Output
PCIe slot: 1 PCIe x16 expansion slot and 2 PCIe x1 expansion slot.
PCI Bus: 3 PCI slot, 32-bit/33 MHz PCI 2.2 compliant
Parallel port: Configured to LPT1 or disabled. LPT1 supports EPP/SPP/ECP.
Serial port: Six serial ports, one RS-232/422/485 with hardware auto-flow con-
trol and five RS-232.
Keyboard and PS/2 mouse connector: Two 6-pin mini-DIN connectors are
located on the mounting bracket for easy connection to PS/2 keyboard and
mouse.
USB port: Supports up to 2 USB 3.0, 7 USB 2.0 ports with transmission rates
up to 5G/480 Mbps.
1.3.4 Graphics
Controller: Intel® HD Graphics
Display memory: 1 GB maximum shared memory with 2GB and above system
memory installed
DVI: Supports DVI up to resolution 1920 x 1200 @ 60Hz refresh rate
CRT1: Supports VGA up to resolution 1920 x 1200 @ 60Hz refresh rate
1.3.5 Ethernet LAN
Supports dual 10/100/1000 Mbps Ethernet port (s) via PCI Express x1 bus
which provides 500 MB/s data transmission rate
Controller: LAN 1: Realtek RTL8111G-CG; LAN 2: Realtek RTL8111G-CG
1.3.6 Industrial features
Watchdog timer: Can generate a system reset. The watchdog timer is pro-
grammable, with each unit equal to one second or one minute (255 levels)
1.3.7 Mechanical and environmental specifications
Operating temperature: 0 ~ 60° C (32 ~ 140° F, depending on CPU)
Storage temperature: -20 ~ 70° C (-4 ~ 158° F)
Humidity: 5 ~ 95% non-condensing
Power supply voltage: +3.3 V, +5 V, +12 V, -12 V, 5 Vsb
Power consumption:
-Intel® Core™ i7-4770S CPU @ 3.10GHz + DDR3 8G X2 1600 + SATA H.D.D,
+5V @ 1.41A, +3.3V @ 1.14A, +12V @ 4.8A, 5Vsb @ 0.42A, -12V@ 0.13A
Measure the maximum current value which system under maximum load (CPU:
Top speed, RAM: Full loading)
Board size: 305 x 203 mm (12" x 8.0")
Board weight: 0.5 kg
1.4 Jumpers and Connectors
Connectors on the SIMB-A31 motherboard link it to devices such as hard disk drives
and a keyboard. In addition, the board has a number of jumpers used to configure
your system for your application.
The tables below list the function of each of the board jumpers and connectors. Later
sections in this chapter give instructions on setting jumpers. Chapter 2 gives instruc-
tions for connecting external devices to your motherboard.

SIMB-A31 User Manual 4
Table 1.1: Jumpers
Label Function
JCOMS1 Clear CMOS (Default 2-3)
JMECLR1 ME LOCK (Default 2-3)
WTD_OUT Watchdog Timer (Enable 2-3)
SETCOM2A/
SETCOM2B COM2A & COM2B RS-232/422/485 jumper setting
JSETCOM1,
JSETCOM2,
JSETCOM3,
JSETCOM4
RI#(1-2)/5V(3-4)/12V(5-6) Select
ATX_AT ATX Mode(2-3)/AT Mode(1-2)
VOL_ADJ1 Volume Adjustment
Table 1.2: Connectors
Label Function
KBMS1 Keyboard & Mouse connector
COM1 Serial port 1 connector
COM2 Serial port 2 connector
VGA VGA connector
DVI DVI connector
LAN1_USB12 LAN1 & USB12(2.0) connector
LAN2_USB34 LAN2 & USB34(3.0) connector
AUDIO Line-in/Line-out/Mic-in connector
F_AUDIO Front panel audio header
COM3456 Serial port 3/4/5/6 on board header
LANLED LAN LED header
GPIO GPIO header
VOLT_CON VOLT header
SMBUS SMBUS header
USB56 USB56 header
USB78 USB78header
LPC LPC debug header
LPT LPTheader
USB9 USB9header
SATA1/SATA2 SATA III connector
SATA3 SATA II connector
SATAPWR1/
SATAPWR2 SATAPWR1/SATAPWR2header
MINI_CARD1 MINICARD connector
SIM SIM card holder
SPI_CON SPIheader
ATX POWER ATX power connector
SYSFAN1/SYSFAN2 SYSFAN1/SYSFAN2header
CPU_FAN CPUFANheader
ATX12V ATX CPU power connector
KBMS2 Keyboard & Mouseheader

5 SIMB-A31 User Manual
Chapter 1 General Information
1.5 Board layout: Jumper and Connector Locations
Figure 1.1 Jumper and Connector Location
Figure 1.2 I/O Connectors
JFP1 Front panel (power LED) header
SPDIF OUT SPDIF out header
Table 1.2: Connectors

SIMB-A31 User Manual 6
1.6 SIMB-A31 Board Diagram
Figure 1.3 SIMB-A31 Block Diagram
1.7 Safety Precautions
Warning! Always completely disconnect the power cord from chassis whenever
you work with the hardware. Do not make connections while the power
is on. Sensitive electronic components can be damaged by sudden
power surges. Only experienced electronics personnel should open the
PC chassis.
Caution! Always ground yourself to remove any static charge before touching the
motherboard. Modern electronic devices are very sensitive to electro-
static discharges. As a safety precaution, use a grounding wrist strap at
all times. Place all electronic components on a static-dissipative surface
or in a static-shielded bag when they are not in the chassis.
Caution! The computer is provided with a battery-powered real-time clock circuit.
There is a danger of explosion if battery is incorrectly replaced. Replace
only with same or equivalent type recommended by the manufacturer.
Discard used batteries according to manufacturer's instructions.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer’s
instructions.

7 SIMB-A31 User Manual
Chapter 1 General Information
1.8 Jumper Settings
This section provides instructions on how to configure your motherboard by setting
the jumpers. It also includes the motherboards's default settings and your options for
each jumper.
1.8.1 How to Set Jumpers
You can configure your motherboard to match the needs of your application by set-
ting the jumpers. A jumper is a metal bridge that closes an electrical circuit. It consists
of two metal pins and a small metal clip (often protected by a plastic cover) that slides
over the pins to connect them. To “close” (or turn ON) a jumper, you connect the pins
with the clip. To “open” (or turn OFF) a jumper, you remove the clip. Sometimes a
jumper consists of a set of three pins, labeled 1, 2, and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful when set-
ting jumpers.
1.8.2 JCMOS1 & JMECLR1: CLEAR CMOS & ME LOCK
1.8.3 ATX_AT: ATX, AT Mode Selector
*Default
JCMOS1 JMECLR1
Clear CMOS PIN 1-2
Keep CMOS data PIN 2-3 ME lock PIN 2-3 Unlock PIN 1-2
Table 1.3: ATX_AT: ATX, AT Mode Selector
Function Jumper Setting
1-2 AT Mode
2-3* ATX Mode

SIMB-A31 User Manual 8
1.8.4 WTD_OUT: Watchdog Timer
1.8.5 SETCOM2A & SETCOM2B: COM2 RS232/422/485 mode
selector
Users can use SETCOM2A & SETCOM2B to select among RS232/422/485 mode for
COM2A/COM2B. The default setting is RS232.
SETCOM2A
SETCOM2B
1.8.6 JSETCOM1, SETCOM2C, JSETCOM3, JSETCOM4: Power
setting for COM1, COM2, COM3, COM4
Table 1.4: COM2 RS 232/422/485 mode selector (SETCOM2A/
SETCOM2B)
Function Jumper Setting
*RS232 SETCOM2B PIN 1-2 SETCOM2A 2-3 5-6 8-9 11-12
RS422 SETCOM2B PIN 3-4 SETCOM2A 1-2 4-5 7-8 10-11
RS485 SETCOM2B PIN 5-6 SETCOM2A 1-2 4-5 7-8 10-11
*: Default