AXIOMTEK ETM831 Series User manual

ETM831 Series
Intel®Atom
ETX v3.01 SoM
With Multiple I/O Features
User’s Manual

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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
If you replace wrong batteries, it causes the danger of explosion. It is
recommended by the manufacturer that you follow the manufacturer’s
instructions to only replace the same or equivalent type of battery,
and dispose of used ones.
©Copyright 2009 AXIOMTEK Co., Ltd.
All Rights Reserved
November 2009, Version A1
Printed in Taiwan

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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. It
discharges static electricity from your body.
Wear a wrist-grounding strap, available from most electronic
component stores, when handling boards and components.
Trademarks Acknowledgments
AXIOMTEK is a trademark of AXIOMTEK Co., Ltd.
Windows®is a trademark of Microsoft Corporation.
AMI are trademarks of American Megatrend Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business
Machines Corporation.
Intel®and Atomare trademarks of Intel Corporation.
Winbond is a trademark of Winbond Electronics Corp.
Realtek is a trademark of Realtek Semi-Conductor Co., Ltd.
Other brand names and trademarks are the properties and registered
brands of their respective owners.

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Table of Contents
Disclaimers....................................................................................ii
ESD Precautions..........................................................................iii
C h a p t e r 1....................................................................................1
Introduction........................................................................................ 1
1.1 Specifications.............................................................. 2
1.2 Utilities Supported....................................................... 4
C h a p t e r 2....................................................................................5
Board Layout and Connectors...........................................................5
2.1 Board Layout and Fixing Holes...................................5
2.2 Board Dimensions ...................................................... 7
2.3 Heatspreader Installation............................................ 9
2.4 Connectors & Jumper Settings.................................11
2.4.1 ETX Connector – X1: CNS3..................................... 12
2.4.2 ETX Connector – X2: CNS1..................................... 14
2.4.3 ETX Connector – X3: CNS4..................................... 16
2.4.4 ETX Connector – X4: CNS2..................................... 18
2.4.5 7-pin SATA Connectors: SATA1, SATA2.................20
2.4.6 Audio Connector: SFC1(Optional)............................20
2.4.7 Auto Power On Jumper: JP1.....................................21
CHAPTER 3..................................................................................... 22
HARDWARE DESCRIPTION.......................................................... 22
3.1 Microprocessors .......................................................22
3.2 BIOS.......................................................................... 22
3.3 System Memory........................................................ 22
3.4 I/O Port Address MAP ..............................................22
3.5 Interrupt Controller....................................................25
CHAPTER 4..................................................................................... 26
AMI BIOS SETUP UTILITY ............................................................. 26
4.1 Starting......................................................................26
4.2 Navigation Keys........................................................26
4.3 Main Menu ................................................................ 27
4.4 Advanced Menu........................................................ 28
4.5 PCI PnP Menu..........................................................44
4.6 Boot Menu.................................................................45
4.7 Security Menu........................................................... 48

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4.8 Chipset Menu............................................................49
4.9 Exit Menu..................................................................53
A p p e n d i x A ...............................................................................55
Watchdog Timer ..............................................................................55
Using the Watchdog Function.................................................... 56

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Introduction 1
C h a p t e r 1
Introduction
The ETM831 Series is a finest embedded ETX system-on-a-module
in the market, which makes a generic interface to connect the module
to peripherals such as hard disk, mouse, and display. It supports
Intel®AtomN270 processor with 533MHz FSB (Front Side Bus).
The board integrates Intel®945GSE and ICH7M chipsets that support
one 200-pin DDR2-400/533 SDRAM with maximum up to 2GB system
memory capacity. It makes the all-in-one single module together with
excellent Multiple I/O, dual independent display CRT and LVDS LCD
through ETX connector, Fast Ethernet and 5.1 Channel HD Codec
Audio. Through ETX connectors, it also provide one FDD/LPT port,
four PCI and one full ISA bus for expansion purpose, one PATA, two
SATA and four USB 2.0 ports for high speed peripherals. It can
achieve the best stability and reliability that makes your system
perform the most endurable operation in any critical environments.
The built-in Watchdog Timer has enhanced the system reliability that
achieves a unique feature to distinguish itself from other boards.

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Introduction
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1.1 Specifications
zCPU: Intel®AtomN270 1.6GHz/512KB L2 cache processor
zCPU Frequency: FSB533MHz
zSystem Chipset: Intel®945GSE and ICH7M
zBIOS
AMI BIOS, Y2K compliant
8Mbit SPI Flash, DMI, Plug and Play
RPL/PXE Ethernet Boot ROM
SmartView for multiple LCD type selection, display
mode option and application extension features
“Load Optimized Default” customized Setting in the BIOS
flash chip to prevent from CMOS battery fail
zSystem Memory
One x 200-pin DDR2-400/533 SODIMM socket
Maximum to 2GB DDR2 memory
zL2 Cache: integrated in CPU
zOnboard IDE
One PATA port supported through ETX connector
Two SATA-150 connectors
zOnboard Multi-I/O
Two UARTs through ETX connector
zUSB Interface
Four USB ports with fuse protection and complies with
USB Spec. Rev. 2.0
zWatchdog Timer
1~255 seconds; up to 255 levels
zGraphics
CRT: up to 2048 x 1536
LCD: 18/24-bit signal&dual channel LVDS up to 1600x1200
or 1920 x 1200 ( With Chrontel CH7308B populated )

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Introduction 3
zExpansion Interface
Four PCI Bus Masters supported
One Full ISA supported
zEthernet
One RTL8103EL Fast Ethernet controller
zAudio
5.1 channel HD Codec Audio (optional)
Realtek ALC662, HD audio
MIC-in, Line-in, Line-out
zPower Management
ACPI (Advanced Configuration and Power Interface)
zForm Factor
ETX form factor 95 mm x114 mm
NOTE: All specifications and images are subject to change
without notice.

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Introduction
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1.2 Utilities Supported
zChipset Driver
zVGA Driver
zEthernet Driver
zAudio Driver

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description 5
C h a p t e r 2
Board Layout and Connectors
2.1 Board Layout and Fixing Holes
Component Side

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description
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Solder Side

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description 7
2.2 Board Dimensions
Component Side

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description
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Solder Side

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description 9
2.3 Heatspreader Installation
1. There is a protective plastic covering on the thermal pads. This
must be removed before the heatspreader can be mounted.
Each heatspreader is designed for a specific ETM module. The
thermal pads on the heatspreader are designed to make contact
with the necessary components on the ETM module. When
mounting the heatspreader you must make sure that the thermal
pads on the heatspreader make complete contact (no space
between thermal pad and component) with the corresponding
components on the ETM module. This is especially critical for
ETM modules that have higher CPU speeds (for example
1.0GHz or more) to ensure that the heatspreader acts as a
proper thermal interface for cooling solutions.
2. The two M2.5x8 screws and two M2.5x12 screws are used to
mount the heatspreader and ETM module assembly to the
baseboard. (see Figure 1)
3. If you have an additional thermal solution on the heatspreader,
please refer to the ETM831 thermal solution design guide (see
Figure 2) to design your thermal solution.
Figure 1: ETM831 Heatspreader Assembly Guide

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description
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Figure 2: ETM831 Thermal Solution Design Guide

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description 11
2.4 Connectors & Jumper Settings
Connectors connect the CPU card with other parts of the system.
Loose or improper connection might cause problems. Make sure all
connectors are properly and firmly connected. Here is a summary table
shows you all connectors on the ETM831 Series.
Connectors Label
SATA Connector SATA1
SATA Connector SATA2
DDRⅡSO-DIMM DIMM1
Auro Power Button JP1
ETX Connector – X1 SCN3
ETX Connector – X2 SCN1
ETX Connector – X3 SCN4
ETX Connector – X4 SCN2
Audio Connector
(CH5.1: Rear-R/L,Center,LFE) SFC1
Proper jumer settings configure the ETM831 to meet your application
purpose. We are herewith listing a summary table of all jumpers and
default settings for onboard devices, respectively.
Jumper Default Setting Jumper Setting
JP1 Auto Power ON
Default: Disable Short

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description
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2.4.1 ETX Connector – X1: SCN3
Pin Description Pin Description
1 GND 2 GND
3 PCICLK3 4 PCICLK4
5 GND 6 GND
7 PCICLK1 8 PCICLK2
9 PCI_REQ3# 10 PCI_GNT3#
11 PCI_GNT2# 12 VCC3
13 PCI_REQ2# 14 PCI_GNT1#
15 PCI_REQ1# 16 VCC3
17 PCI_GNT0# 18 CPUFAN_IN
19 VCC 20 VCC
21 SERIRQ 22 PCI_REQ0#
23 PCI_AD0 24 VCC3
25 PCI_AD1 26 PCI_AD2
27 PCI_AD4 28 PCI_AD3
29 PCI_AD6 30 PCI_AD5
31 PCI_C/BE0# 32 PCI_AD7
33 PCI_AD8 34 PCI_AD9
35 GND 36 GND
37 PCI_AD10 38 LINE_IN_L
39 PCI_AD11 40 MIC_IN
41 PCI_AD12 42 LINE_IN_R
43 PCI_AD13 44 ASVCC
45 PCI_AD14 46 LINE_OUT_L
47 PCI_AD15 48 ASGND
49 PCI_C/BE1# 50 LINE_OUT_R
51 VCC 52 VCC
53 PCI_PAR 54 PCI_SERR#

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description 13
Pin Description Pin Description
55 PCI_PERR# 56 CPUFAN_OUT
57 PCI_PME# 58 USB2-
59 PCI_LOCK# 60 PCI_DEVSEL#
61 PCI_TRDY# 62 USB3-
63 PCI_IRDY# 64 PCI_STOP#
65 PCI_FRAME# 66 USB2+
67 GND 68 GND
69 PCI_AD16 70 PCI_C/BE2#
71 PCI_AD17 72 USB3+
73 PCI_AD19 74 PCI_AD18
75 PCI_AD20 76 USB0-
77 PCI_AD22 78 PCI_AD21
79 PCI_AD23 80 USB1-
81 PCI_AD24 82 PCI_C/BE3#
83 VCC 84 VCC
85 PCI_AD25 86 PCI_AD26
87 PCI_AD28 88 USB0+
89 PCI_AD27 90 PCI_AD29
91 PCI_AD30 92 USB1+
93 PCI_RST# 94 PCI_AD31
95 PCI_INTC# 96 PCI_INTD#
97 PCI_INTA# 98 PCI_INTB#
99 GND 100 GND
-- End of ETX Connector-X1 (SCN3) Pin Assignment Table --

ETM831 All-In-One ETX v3.01 SoM User’s Manual
Hardware Description
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2.4.2 ETX Connector – X2: SCN1
Pin Description Pin Description
1 GND 2 GND
3 ISA_SD14 4 ISA_SD15
5 ISA_SD13 6 MASTER#
7 ISA_SD12 8 DREQ7
9 ISA_SD11 10 DACK7#
11 ISA_SD10 12 DREQ6
13 ISA_SD9 14 DACK6#
15 ISA_SD8 16 DREQ5
17 ISA_MEMW# 18 DACK5#
19 ISA_MEMR# 20 DREQ0
21 ISA_LA17 22 DACK0#
23 ISA_LA18 24 IRQ14
25 ISA_LA19 26 IRQ15
27 ISA_LA20 28 IRQ12
29 ISA_LA21 30 IRQ11
31 ISA_LA22 32 IRQ10
33 ISA_LA23 34 IOCS16#
35 GND 36 GND
37 SBHE# 38 MEMCS16#
39 ISA_SA0 40 ISA_OSC
41 ISA_SA1 42 BALE
43 ISA_SA2 44 TC
45 ISA_SA3 46 DACK2#
47 ISA_SA4 48 IRQ3
49 ISA_SA5 50 IRQ4
51 VCC 52 VCC
53 ISA_SA6 54 IRQ5