Advantech AIMB-281 User manual

User Manual
AIMB-281
Intel® Core™ i7/i5/i3/Celeron
LGA1155 Mini-ITX with CRT/DVI/
LVDS, 6 COM, Dual LAN, PCIe x4

AIMB-281 User Manual ii
Copyright
The documentation and software included with this product are copyrighted 2015 by
Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right to
improve 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. All
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 that may result from its use.
Acknowledgements
IBM and PC are trademarks of International Business Machines Corporation.
Intel® Core™ i7/i5/i3, Pentium®, Celeron® are trademarks of Intel Corporation.
WinBond is a trademark of Winbond Corporation.
All other product names or trademarks are properties of their respective owners.
Part No. 2006028100 Edition 1
Printed in China June 2015

iii AIMB-281 User Manual
A Message to the Customer
Advantech Customer Services
Every Advantech product is built with exact specifications to ensure reliable perfor-
mance in the harsh and demanding conditions typical of industrial environments.
Whether this Advantech equipment is destined for the laboratory or factory floor, be
assured that your product will provide the reliability and ease of operation for which
Advantech has become renowned.
Because your satisfaction is our primary concern, we have produced this guide to
Advantech’s customer services. To ensure you receive the full benefit of our services,
please follow the instructions provided below.
Technical Support
We want customers to experience the maximum performance from our products.
Should you encounter technical difficulties, we are available to provide assistance.
For the most frequently asked questions, we have provided answers in the product
documentation. Generally, these answers are substantially more detailed than those
provided over the phone.
Please consult this manual first when you encounter a problem. If you still cannot find
the answer, gather all the information or questions that apply to your problem, and
with the product on hand, call your dealer. Our dealers are well trained and ready to
offer the support required to get the most from Advantech products. The majority of
problems reported are minor and can be easily resolved over the phone.
In addition, free technical support from Advantech engineers is available every busi-
ness day. We are always ready and willing to give advice on application requirements
or specific information regarding the installation and operation of any of our products.

AIMB-281 User Manual iv
Declaration of Conformity
FCC Class B
This device complies with the requirements specified in Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
This device must 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 of 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 such
cases, users are required to correct the interference at their own expense. Users are
advised that any equipment changes or modifications not expressly approved by the
party responsible for compliance will void the compliance with FCC Rules, and there-
fore, the user's authority to operate the equipment.
CPU Compatibility
Caution! Batteries may explode if 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 manufacturer. Dis-
card used batteries according to the manufacturer's instructions.
Test Item Description
CPU Family Base Freq Power L3 Cache Mfg Tech Result
Intel i5-3550 3.3GHz 77W 6MB 22nm PASS
Intel i5-3570T 2.3GHz 45W 6MB 22nm PASS
Intel i5-3550S 3.0GHz 65W 6MB 22nm PASS
Intel i5-3450 3.1GHz 77W 6MB 22nm PASS
Intel i5-3570K 3.4GHz 77W 6MB 22nm PASS
Intel i5-2500T 2.3GHz 45W 6MB 32nm PASS
Intel i7-3770T 2.5GHz 45W 8MB 22nm PASS
Intel i7-3770S 3.1GHz 65W 8MB 22nm PASS
Intel i7-3770 3.4GHz 77W 8MB 22nm PASS
Intel i7-3770K 3.5GHz 77W 8MB 22nm PASS
Intel i7-2600K 3.4GHz 95W 8MB 32nm PASS
Intel i3-2125 3.3GHz 65W 3MB 32nm PASS
Intel i3-3220 3.3GHz 55W 3MB 22nm PASS
Intel Xeon E3-1275 3.4GHz 84W 8MB 22nm PASS
Intel Xeon E3-1225 3.1GHz 95W 6MB 32nm PASS
Intel Pentium G620 2.6GHz 65W 3MB 32nm PASS
Intel Celeron G460 1.8GHz 35W 1.5MB 32nm PASS

v AIMB-281 User Manual
Memory Compatibility
Memory Module Information
Item MEM-01 MEM-02 MEM-03
Module Vendor Transcend Transcend Transcend
Module P/N TS1GSK64V3H TS256MSK64V3N TS256MSK64V6N
Chip Vendor Micron Hynix Micron
Chip P/N 2AD27 D9PBC H5TQ2G83CFR IVM77 D9PFJ
Capacity 8 GB 2 GB 2 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 1333 1333 1600
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID
Memory Module Information
Item MEM-04 MEM-05MEM-06
Module Vendor ATP DSL DSL
Module P/N AW24M64F8BLK0S DDR3 1600 2GB CL11 DDR3 1333 4GB CL9
Chip Vendor SEC SEC Elpida
Chip P/N 216 HYKO 113 HCK0 J4208BASE-DJ-F
Capacity 8 GB 2 GB 4 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 160016001066
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID
Memory Module Information
Item MEM-07MEM-08MEM-09
Module Vendor Transcend Kingston ADATA
Module P/N TS128MSK64V1U KVR1333D3S8S9/2G HY7YG1B16
Chip Vendor Elpida Elpida Hynix
Chip P/N J1108BDBG-DJ-F J2108BCSE H5TQ1G83BFR
Capacity 1 GB 2 GB 2 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 1066 1333 1066

AIMB-281 User Manual vi
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-039/040SD3-126/127 SD3-087/088
Memory Module Information
Item MEM-10 MEM-11 MEM-12
Module Vendor Innodisk Innodisk Transcend
Module P/N M3SP-2GMJCL0C-M M3SP-4GMJDL0C-M JM1333KSN-2G
Chip Vendor Micron Micron SpecTek
Chip P/N IQM22 D9PFJ IIM22 D9PFJ PE901
Capacity 2 GB 4 GB 2 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 160016001333
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-142/143 SD3-145/146 SD3-116/117
Memory Module Information
Item MEM-13 MEM-14 MEM-15
Module Vendor DSL Panram ADATA
Module P/N DDR3 1333 2GB CL9 200D38G328,NB,
K2BASESF EL73I1B0873ZV
Chip Vendor Elpida Elpida
Chip P/N J1108BDSE-DJ-F F140X8A09481 J2108BCSE-DJ-F
Capacity 2 GB 8 GB 2 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 1333 1333 1333
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-019/020SD3-140/141 SD3-132/133
Memory Module Information
Item MEM-16 MEM-17 MEM-18
Module Vendor Kingston PQI Apacer
Module P/N KVR1066D3S7/1G MFCBR502SA0101 78.A2GC3.421
Chip Vendor Kingston Hynix Elpida
Chip P/N D1288JPNDPLD9U H5TQ2G83AFR J1108BDBG-DJ-F
Capacity 1 GB 4 GB 2 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered

vii AIMB-281 User Manual
Type SO DIMM SO DIMM SO DIMM
Speed 1066 1066 1066
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-064/065 SD3-075/076 SD3-027/028
Memory Module Information
Item MEM-19 MEM-20 MEM-21
Module Vendor Kingston hynix Transcend
Module P/N KVR1333D3S9/1G HMT112S6TFR8C-H9 TS512MSK64V1N
Chip Vendor Kingston Hynix Hynix
Chip P/N D1288JPNDPLD9U H5TQ1G83TFR H5TQ2G83BFR
Capacity 1 GB 1 GB 4 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 1333 1333 1066
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-066/067 SD3-128/129 SD3-055/056
Memory Module Information
Item MEM-22 MEM-23 MEM-24
Module Vendor Transcend PQI ADATA
Module P/N TS256MSK64V6N MFCBR402PA0105 AD73I1A0873EG
Chip Vendor Micron Hynix ADATA
Chip P/N IVM77 D9PFJ H5TQ1G83BFR AD3BC8A-13339H
Capacity 2 GB 2 GB 1 GB
Unbuffered/Regis- Unbuffered Unbuffered Unbuffered
Type SO DIMM SO DIMM SO DIMM
Speed 16001066 1333
ECC/Non-ECC Non-ECC Non-ECC Non-ECC
Wide Temp Support NIL NIL NIL
Device ID SD3-151/152 SD3-077/078 SD3-123/124

AIMB-281 User Manual viii
*Use external VGA card to perform this test, DO NOT use on-board internal VGA.
Ordering Information
*() not populated on MP version.
Product Warranty (2 years)
Advantech warrants the original purchaser that all its products will be free from
defects in materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products that have been repaired or altered by
persons other than the repair personnel authorized by Advantech, or that 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
customers never need to use our repair service. If an Advantech product is defective,
it will be repaired or replaced at no charge during the warranty period. For out-of-war-
ranty repairs, customers are billed according to the cost of replacement materials,
service time, and freight. Please consult your dealer for more details.
If you believe your product to be defective, please follow the steps outlined below.
1. Collect all information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and record any onscreen messages displayed when the
problem occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any relevant 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 completed Repair and Replacement
Order card, and proof of purchase date (such as a photocopy of your sales
receipt) in a shippable container. Products returned without a proof of purchase
date are not eligible for warranty service.
5. Write the RMA number clearly on the outside of the package, then ship the
package prepaid to your dealer.
Memory No. Test Procedure Result
MEM-01
System can boot up Pass
Check if BIOS can detect correct capacity and speed Pass
System can power on/off x 10 Pass
Run Memtest86 for 3 loops Pass
Run Prime95 for 1 hour Pass
Part Number Chipset CRT DVI LVDS GbE LAN COM
AIMB-281G2-00A1E H61 Yes Yes Yes 2 6

ix AIMB-281 User Manual
Initial Inspection
Before installing the motherboard, please check to ensure that the following materials
have been shipped:
1 x AIMB-281 mini-ITX motherboard
1 x driver CD
2 x COM cable (2 x 10 pin)
2 x SATA cable (2 in 1,7-pins)
1 x I/O shield
1 x startup manual
1 x warranty card
If any of the above items are missing or damaged, please contact your distributor or
sales representative immediately. We have carefully inspected the AIMB-281
mechanically and electrically before shipment. The product should be free of marks
and scratches and in perfect working order upon receipt. While unpacking, check the
AIMB-281 device for signs of shipping damage (for example, damaged box,
scratches, or dents). If the product is damaged or fails to meet the specifications,
notify our service department or your local sales representative immediately. Also
remember to notify the carrier. Retain the shipping carton and packing material for
inspection by the carrier. After inspection, we will make arrangements to repair or
replace the unit.

AIMB-281 User Manual x

xi AIMB-281 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..........................................................................4
Table 1.1: Jumpers......................................................................4
Table 1.2: Rear Panel Connector................................................4
Table 1.3: Internal Connector......................................................4
1.5 Board Layout: Jumper and Connector Locations......................................5
Figure 1.1 Jumper and Connector Locations...............................5
Figure 1.2 I/O Connectors ...........................................................5
1.6 AIMB-281 Board Diagram.........................................................................6
Figure 1.3 AIMB-281 Block Diagram...........................................6
1.7 Safety Precautions....................................................................................7
1.8 Jumper Settings........................................................................................7
1.8.1 How to Set Jumpers......................................................................7
1.8.2 Clear CMOS (JCMOS1)................................................................8
1.8.3 LVDS Back Light Power Selection................................................9
1.8.4 AT/ATX Power Mode Select (JPSON)........................................10
1.9 System Memory......................................................................................10
1.10 Memory Installation Procedures..............................................................10
1.11 Cache Memory........................................................................................11
1.12 Processor Installation..............................................................................11
Chapter 2 Connecting Peripherals ....................13
2.1 Introduction .............................................................................................14
2.2 USB Ports ...............................................................................................14
Table 2.1: Pin Definitions (USB78)............................................15
2.3 VGA/DVI-D Connector ............................................................................15
Table 2.2: VGA Connector (VGA1) ...........................................16
Table 2.3: DVI Connector (DVI1)...............................................16
2.4 Serial Ports (COM12 ~ COM56) .............................................................17
Table 2.4: Serial Port Connectors (COM34, COM56)...............18
2.5 PS/2 Keyboard/Mouse Connector...........................................................18
2.6 CPU Fan Connector (CPU_FAN1)..........................................................19
Table 2.5: CPU Fan Connector (CPU_FAN1)...........................19
2.7 System FAN Connector (SYS_FAN1).....................................................20
Table 2.6: System Fan Connector (SYS_FAN1).......................20
2.8 System Panel (F_PANEL).......................................................................21
Table 2.7: System Panel (F_PANEL)........................................21
2.9 Line-Out, Mic-In Connector (AUDIO1/AUDIO2)......................................22
2.10 Serial ATA Interface (SATA1 ~ SATA3)..................................................23
2.11 Front Headphone Connector (FP_AUDIO1) ...........................................24
Table 2.8: Front Headphone Connector (FP_AUDIO1).............24
2.12 ATX Power Connector (EATXPWR1, ATX12V1)....................................25
Table 2.9: ATX Power Connector (EATXPWR1, ATX12V1).....25

AIMB-281 User Manual xii
2.13 SPI Flash Connector (JSPI).................................................................... 26
Table 2.10:SPI Flash Connector (SPI1)..................................... 26
2.14 LCD Inverter Connector (JBKL1)............................................................ 27
Table 2.11:LCD Inverter Connector (JBKL1) ............................. 27
2.15 LVDS Connector (JLVDS1) .................................................................... 28
Table 2.12:LVDS Connector (JLVDS1)...................................... 28
2.16 General Purpose I/O Connector (JDIO1)................................................ 29
Table 2.13:General Purpose I/O Connector (JDIO1) ................. 29
2.17 LPC Connector for Debug (JLPC1) ........................................................ 30
Table 2.14:General Purpose I/O Connector (JDIO1) ................. 30
2.18 JSETCOM1............................................................................................. 31
Table 2.15:JSETCOM1.............................................................. 31
2.19 LPT1 ....................................................................................................... 32
Table 2.16:LPT1......................................................................... 32
Chapter 3 BIOS Operation................................. 33
3.1 Introduction............................................................................................. 34
3.2 BIOS Setup............................................................................................. 34
3.3 Main BIOS Setup.................................................................................... 35
3.3.1 Advanced BIOS Features........................................................... 36
3.3.2 PCI Express Settings.................................................................. 37
3.3.3 ACPI Settings ............................................................................. 38
3.3.4 Trusted Computing..................................................................... 39
3.3.5 S5 RTC Wake Settings............................................................... 39
3.3.6 SATA Configuration.................................................................... 40
3.3.7 Intel Trusted Execution Technology Configuration..................... 40
3.3.8 USB Configuration...................................................................... 41
3.3.9 Super I/O Configuration.............................................................. 42
3.3.10 Smart Fan Configuration............................................................. 47
3.3.11 CPU PPM Configuration............................................................. 49
3.4 Chipset Configuration Setting................................................................. 49
3.4.1 PCH-IO Configuration................................................................ 50
3.4.2 USB Configuration...................................................................... 54
3.4.3 PCH Azalia Configuration........................................................... 55
3.4.4 System Agent Configuration....................................................... 55
3.4.5 NB PCIe Configuration ............................................................... 58
3.4.6 Memory Information.................................................................... 59
3.5 Boot Configuration.................................................................................. 59
3.6 Security Settings..................................................................................... 60
3.7 Save & Exit Configuration....................................................................... 61
Chapter 4 Chipset Software Installation Utility 63
4.1 Before Beginning .................................................................................... 64
4.2 Introduction............................................................................................. 64
4.3 Windows XP/Windows 7 Driver Setup.................................................... 65
Chapter 5 VGA Setup.........................................67
5.1 Introduction............................................................................................. 68
5.2 Windows 7/XP......................................................................................... 68
Chapter 6 LAN Configuration............................ 69
6.1 Introduction............................................................................................. 70
6.2 Installation............................................................................................... 70

xiii AIMB-281 User Manual
6.3 Windows® 7/XP Driver Setup (Realtek RTL8111E-VL)..........................70
Appendix A Programming the Watchdog Timer..71
A.1 Programming the Watchdog Timer.........................................................72
A.1.1 Watchdog Timer Overview..........................................................72
A.1.2 Programming the Watchdog Timer.............................................72
Table A.1: Watchdog Timer Registers.......................................74
A.1.3 Example Program.......................................................................75
Appendix B Jumper Settings & Connector List ..79
B.1 Jumper Settings......................................................................................80

AIMB-281 User Manual xiv

Chapter 1
1General Information

AIMB-281 User Manual 2
1.1 Introduction
AIMB-281 is designed with the Intel H61 for industrial applications that require both
high-performance computing and enhanced power management capabilities. The
motherboard supports Intel Core i7-3770 3.4 GHz/Core i5-3550S 3.0 GHz/Core i7-
2600 3.4 GHz/Core i5-3570 2.3 GHz/Core i5-3450 3.1 GHz/Core i5-2500T 2.3 GHz/
Core i3-2125 3.3 GHz/Core i3-3220 3.3 GHz/Xeon E3-1275 3.4 GHz/Xeon E3-1225
3.1 GHz/Pentium G620 2.6 GHz/Celeron G460 1.8 GHz processors, L3 cache of up
to 8 MB, and DDR3 1066/1333/1600 memory up to 16 GB. AIMB-281 also offers rich
I/O connectivity with 6 serial ports, 8 USB 2.0, dual GbE LAN, and 3 SATA II ports.
1.2 Features
Rich I/O Connectivity: Dual GbE LAN via PCIe x 1 bus, 8 USB 2.0 ports, 6
serial ports, 1 mini PCIe, and 1 PCIe x 4.
Standard Mini-ATX Form Factor with Industrial Features: The full-featured
mini-ATX motherboard offers balanced expandability and performance.
Wide Selection of Storage Devices: SATA HDD, customers benefit from the
flexibility of suitable storage devices with a higher capacity.
Optimized Integrated Graphics Solution: The Intel® Flexible Display Inter-
face supports versatile display options and a 32-bit 3D graphics engine.
1.3 Specifications
1.3.1 System
CPU: Intel Core i7-3770 3.4 GHz/Core i5-3550S 3.0GHz/Core i7-2600 3.4GHz/
Core i5-3570 2.3 GHz/Core i5-3450 3.1 GHz/Core i5-2500T 2.3 GHz/Core i3-
2125 3.3 GHz/Core i3-3220 3.3 GHz/Xeon E3-1275 3.4 GHz/Pentium G620 2.6
GHz/Celeron G460 1.8 GHz processor
BIOS: AMI EFI 32 Mbit SPI BIOS
System Chipset: Intel® H61
SATA Hard Disk Drive Interface: Equipped with 3 on-board SATA connectors
with a data transmission rate of up to 300 MB
1.3.2 Memory
RAM: Supports up to 16 GB in two 204-pin DIMM sockets. Supports dual-chan-
nel DDR3 1066/1333/1600f MHz SDRAM.
–Supports non-ECC unbuffered DIMMs. Does not support memory configura-
tions that mix non-ECC with ECC unbuffered DIMMs.
Note! A 32-bit OS may not detect the RAM when only 16 GB is installed.

3 AIMB-281 User Manual
Chapter 1 General Information
1.3.3 Input/Output
PCIe Slot: One mini-PCIe expansion slot and one PCIe x4 expansion slot.
Parallel Port: Configured to LPT1 or disabled. LPT1 supports EPP/SPP/ECP.
Serial Port: Six serial ports, two RS-232 with hardware auto-flow control, and
four RS-232.
PS/2 Mouse Connector: One connector is located on the mounting bracket for
easy connection to PS/2 keyboard and mouse.
USB Port: Supports up to 8 USB 2.0 ports with transmission rates of up to 480
Mbps.
GPIO: Supports 8-bit GPIO from super I/O for general purpose control applica-
tions.
1.3.4 Graphics
Controller: Intel® HD Graphics
Display Memory: Offers a maximum of 256 MB of shared memory when a min-
imum of 2 GB of system memory is installed
DVI: Supports DVI up to 1920 x 1200 resolution @ 60Hz refresh rate
CRT: Supports VGA up to 2048 x 1536 resolution @ 75Hz refresh rate
LVDS: Supports LVDS up to 1920 x 1200 resolution
1.3.5 Ethernet LAN
Supports dual 10/100/1000 Mbps Ethernet port (s) via PCI Express x1 bus,
which provides a data transmission rate of 500 MB/s
Controller: LAN 1: Realtek 8111E; LAN 2: Realtek 8111E
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 LGA1155 Core i7-2600 3.4 GHz, 8MB L3 cache, 2pcs 4GB DDR3 1600
MHz, +5V @1.38A, +3.3V @ 1.2A, +12V @ 7.25A, 5Vsb @ 0.15A, -12V @
0.24A
Measure the maximum current value with the system under maximum load
(CPU: Top speed, RAM: Full loading)
Board Size: 170 x 170 mm (6.69 x 6.69")
Board Weight: 1.04 kg

AIMB-281 User Manual 4
1.4 Jumpers and Connectors
The AIMB-281 motherboard is equipped with connectors for integrating additional
devices, such as hard disk drives and a keyboard. The board also features several
jumpers for configuring the system to each application.
The function of every board jumper and connector is listed in the table below. Instruc-
tions for setting jumpers are provided in subsequent sections of this chapter. The pro-
cedure for connecting external devices to the motherboard is explained in Chapter 2.
Table 1.1: Jumpers
Label Function Note
JCMOS1 Clear CMOS 3 x 1 header, pitch 2.0 mm
JPSON AT/ATX Mode Select 3 x 1 header, pitch 2.0 mm
JLVDS_BKL1 BL Select 3 x 1 header, pitch 2.0 mm
SelectCOM SelectCOM 9 x 2 header, pitch 2.0 mm
SPI1 4 x 2 header, pitch 2.54 mm
JLPC 6 x 2 header, pitch 2.0 mm
LPT 13 x 2 header, pitch 2.54 mm
Table 1.2: Rear Panel Connector
Label Function Note
KBMS_USB PS/2 KB/Mouse/2 USB 2.0 6-pin mini-Din
DVI DVI Port 29-pin DVI-D port
VGA1 VGA Port D-sub 15-pin, female
LAN1USB12 RJ-45 Ethernet Connector x 1
USB 2.0 Connector x 2
LAN2USB34 RJ-45 Ethernet Connector x 1
USB 2.0 Connector x 2
Audio1 Audio, Line-Out, Mic-In
Table 1.3: Internal Connector
Label Function Note
CPU_FAN CPU Fan Connector 4 x 1 wafer, pitch 2.54 mm
SYS_FAN1 System Fan Connector 3 x 1 wafer, pitch 2.54 mm
COM3~6 Pin Header Connector * 2 10 x 2 header, pitch 2.0 mm
JDIO GPIO Connector 5 x 2 header, pitch 2.0mm
F_PANEL1 Intel Front Panel Connector 5 x 2 header, pitch 2.54mm
EATXPWR EATX Power Connectors 12 x 2 header
FPAUD1 Audio Mic-In and Line-Out Connector 5 x 2 header, pitch 2.54 mm
JLVDS 24-bit LVDS Connector 2 x 20 connector
JBKL LCD Inverter Connector 1 x 5 connector
SATA1 ~ 3 SATA Data Connector * 3 7P male connector
ATX12V ATX Power Connector 2 x 2 pin power connector
USB78 USB Connector * 1 5 x 2 header, pitch 2.0 mm

5 AIMB-281 User Manual
Chapter 1 General Information
1.5 Board Layout: Jumper and Connector
Locations
Figure 1.1 Jumper and Connector Locations
Figure 1.2 I/O Connectors

AIMB-281 User Manual 6
1.6 AIMB-281 Board Diagram
Figure 1.3 AIMB-281 Block Diagram
Intel Core i7/i5/i3/
Pentium/Celeron
processor
BIOS
Infineon SLB9635 TPM
1.2 (Optional)
Audio Codec
Realtek ALC892
Super I/O
NCT6776F
2 RS-232,
PS/2, WDT,
8 bit GPIO
4 RS-232
Flex Display
Interface
DMI x 4
H61
PCIe GEN2
DDR3 1066/1333/1600 MHz SO-DIMM
DDR3 1066/1333/1600 MHz SO-DIMM
Channel A
Channel B
GbE LAN1: RTL8111E
Mini-PCIe
PCIe x4
LPC
HD Audio
SPI
CRT
DVI-D
8USB PORTS
DVI
CRT PCIe x1
PCIe x 1
3 SATA 2 PORTS
300 MB/s
GbE LAN2 : RTL8111E
PCIe x1
Fintek F81216AD
USB 2.0
LVDS 24/48 bit