Global American Inc. Mini-ITX 2807638 User manual

Product Guide
Mini-ITX Motherboard 2807638
Version 1.0

Copyrights
This manual is copyrighted and all rights are reserved. It does not allow any non authorization in
copied, photocopied, translated or reproduced to any electronic or machine readable form in
whole or in part without prior written consent from the manufacturer.
In general, the manufacturer will not be liable for any direct, indirect, special, incidental or
consequential damages arising from the use of inability to use the product or documentation, even
if advised of the possibility of such damages. The manufacturer keeps the rights in the subject to
change the contents of this manual without prior notices in order to improve the function design,
performance, quality and reliability. The author assumes no responsibility for any errors or
omissions, which may appear in this manual, nor does it make a commitment to update the
information contained herein.
Trademarks
Intel is a registered trademark of Intel Corporation.
Award is a registered trademark of Award Software, Inc.
All other trademarks, products and or product's name mentioned herein are mentioned for
identification purposes only, and may be trademarks and/or registered trademarks of their
respective companies or owners.

Revision History
Revision Revision History Date
-001 First release of the Mini-ITX Motherboard 2807638 Product Guide March 2007

iii
Preface
This Product Guide gives information about board layout, component installation, and
regulatory requirements for Mini-ITX Motherboard 2807638.
Intended Audience
The Product Guide is intended for technically qualified personnel. It is not intended for
general audiences.
Intended Uses
All Mini-ITX motherboards are evaluated as Information Technology Equipment (I.T.E.)
for use in personal computers (PC) for installation in homes, offices, schools, computer
rooms, and similar locations. The suitability of this product for other PC or embedded
non-PC applications or other environments, such as medical, industrial, alarm systems,
test equipment, etc. may not be supported without further evaluation.
Document Organization
The chapters in this Product Guide are arranged as follows:
1 Board Features: a summary of product features
2 Installing and Replacing Board Components: instructions on how to install
the Board and other hardware components
B Regulatory Compliance: safety and EMC regulations and product certifications
Conventions
The following conventions are used in this manual:
CAUTION
Cautions warn the user about how to prevent damage to hardware or loss of data.
NOTE
Notes call attention to important information.

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iv
Terminology
The table below gives descriptions to some common terms used in the product guide.
Term Description
GB Gigabyte (1,073,741,824 bytes)
GHz Gigahertz (one billion hertz)
KB Kilobyte (1024 bytes)
MB Megabyte (1,048,576 bytes)
Mbit Megabit (1,048,576 bits)
MHz Megahertz (one million hertz)
Box Contents
•Mini-ITX Motherboard
•I/O shield
•One ATA-66/100 cable
•Quick Reference Guide
•Configuration and safety labels

v
Contents
1Mini-ITX Motherboard Features
Supported Operating Systems ..............................................................................10
Board Components..............................................................................................11
Processor ...........................................................................................................13
Main Memory......................................................................................................13
Chipset ..............................................................................................................14
Graphics Subsystem ............................................................................................14
Audio Subsystem ................................................................................................14
Input/Output (I/O) Controller ...............................................................................15
LAN Subsystem................................................................................................... 15
RJ-45 LAN Connector LEDs ........................................................................... 16
Hi-Speed USB 2.0 Support ...................................................................................17
Enhanced IDE Interface .......................................................................................17
Expandability......................................................................................................17
BIOS .................................................................................................................17
IDE Auto Configuration................................................................................. 17
PCI Auto Configuration .................................................................................18
Security Passwords ...................................................................................... 18
Power Management Features ................................................................................18
ACPI .......................................................................................................... 18
Hardware Support ....................................................................................... 19
Power Connectors ................................................................................19
Fan Headers ........................................................................................ 19
LAN Wake Capabilities .......................................................................... 20
Wake from USB ................................................................................... 20
Wake from PS/2 Keyboard/Mouse .......................................................... 20
PME# Wakeup Support ......................................................................... 20
Battery .............................................................................................................. 20
Real-Time Clock .................................................................................................. 20
2Installing and Replacing Mini-ITX Motherboard Components
Before You Begin................................................................................................. 21
Installation Precautions........................................................................................22
Prevent Power Supply Overload..................................................................... 22
Observe Safety and Regulatory Requirements ................................................. 22
Installing the I/O Shield ....................................................................................... 23
Installing and Removing the Board........................................................................ 24
Installing and Removing Memory .......................................................................... 25
Installing DIMMs.......................................................................................... 25
Removing DIMMs.........................................................................................27
Connecting the IDE Cable..................................................................................... 27
Connecting Internal Headers ................................................................................ 29
Installing a Front Panel Audio Solution ........................................................... 30
Connecting Hi-Speed USB 2.0 Headers........................................................... 31
Connecting the Front Panel Header ................................................................31
Connecting the Chassis Fan .................................................................................. 32
Connecting Supply Power Cables ........................................................................... 33

Mni-ITX Motherboard 2807638 Product Guide
vi
Setting the Board Jumpers................................................................................... 34
Front Panel Audio Header/Jumper Block .........................................................34
BIOS Configuration Jumper........................................................................... 35
Clearing Passwords ...................................................................................... 36
Replacing the Battery ..........................................................................................37
ARegulatory Compliance
Safety Regulations .............................................................................................. 42
Place Battery Marking ..................................................................................42

Contents
vii
Figures
1. Mini-ITX Motherboard 2807638 Components..................................................... 11
2. Back Panel Audio Connectors .......................................................................... 15
3. LAN Connector LEDs ......................................................................................16
4. Location of the Standby Power Indicator........................................................... 19
5. Installing the I/O Shield .................................................................................23
6. Board Mounting Screw Holes........................................................................... 24
7. Use DDR DIMMs ............................................................................................25
8. Installing a DIMM .......................................................................................... 26
9. Connecting the IDE Cable ............................................................................... 28
10. Internal Headers ........................................................................................... 29
11. Location of the Chassis Fan Header..................................................................32
12. Connecting a 2 x 10 or 2 x 12 Power Supply Cable ............................................ 33
13. Board Jumpers..............................................................................................34
14. Removing the Battery ....................................................................................41
Tables
1. Feature Summary............................................................................................9
2. Mini-ITX Motherboard Components................................................................... 12
3. RJ-45 10/100 Ethernet LAN Connector LEDs ..................................................... 16
4. Front Panel Audio Header Signal Names ...........................................................30
5. Hi-Speed USB 2.0 Header Signal Names...........................................................31
6. Front Panel Header Signal Names .................................................................... 31
7. Front Panel Audio Header/Jumper Block ...........................................................35
8. Jumper Settings for the BIOS Setup Program Modes .......................................... 35
11. Safety Regulations.........................................................................................42

Mini-ITX Motherboard 2807638 Product Guide
viii

9
1 Mini-ITX Motherboard Features
This chapter briefly describes the main features of the Mini-ITX Motherboard.
Table 1 summarizes the features of the Board.
Table 1. Feature Summary
Form Factor Mini-ITX (171.45 millimeters [6.75 inches] x 171.45 millimeters
[6.75 inches])
Processor Intel®Celeron®processor
Main Memory •One 240-pin SDRAM Dual Inline Memory Module (DIMM) socket
•533/400 MHz single channel DDR2 SDRAM interface
•Supports up to 1 GB of system memory
Chipset •SiS662* Graphics and Memory Controller (Northbridge)
•SiS964L* I/O Controller (Southbridge)
Graphics SiS Integrated Mirage* 1 Graphics Engine
Audio •ADI AD1888 Audio Codec
•Support for AC’97 two-channel audio
Expansion
Capabilities
One PCI bus add-in card connector
Peripheral
Interfaces
•Six USB 2.0 ports
―Two ports routed to the back panel
―Four ports routed to two USB headers
•One IDE interface with ATA-100 support (two devices)
•One VGA connector
•One parallel port
•One serial port
•PS/2* keyboard and mouse ports
BIOS •Intel®BIOS
•Support for SMBIOS
•Intel®Rapid BIOS Boot
LAN Support •10/100 Mb/s LAN Subsystem
Power
Management
•Support for Advanced Configuration and Power Interface (ACPI); no
support for S3
•Wake on USB, PCI, PS/2, LAN, and front panel

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10
R
Supported Operating Systems
The Board supports the following operating systems:
•Microsoft Windows* XP Professional
•Microsoft Windows XP Home
•Microsoft Windows XP Starter Edition

Mini-ITX Motherboard Features
11
Mini-ITX Motherboard Components
Figure 1 shows the location of the major components on Mini-ITX Motherboard 2807638.
Figure 1. Mini-ITX Motherboard 2807638 Components

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12
Table 2. Mini-ITX Motherboard 2807638 Components
Label Description
A PCI bus add-in card connector
B Hi-speed USB 2.0 headers
C Front panel audio header
D Back panel connectors
E Rear fan (3-pin) header
F 12 V processor core voltage connector (2 x 2)
G Main power connector (2 x 10)
H Processor
I DDR 2 DIMM connector
J IDE connector
K Front panel header
L Battery
M BIOS configuration jumper

Mini-ITX Motherboard Features
13
Processor
CAUTION
Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 2)
power connector to the Board may result in damage to the board, or the
system may not function properly.
The Mini-ITX Motherbaord 2807638 includes an Intel Celeron processor. The processor is
soldered to the Board and is not customer upgradeable.
Main Memory
NOTE
To be fully compliant with all applicable Intel®SDRAM memory specifications, the
board should be populated with DIMMs that support the Serial Presence Detect (SPD)
data structure. If your memory modules do not support SPD, you will see a
notification to this effect on the screen at power up. The BIOS will attempt to
configure the memory controller for normal operation.
The Board has one 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline
Memory Module (DIMM) connector with gold-plated contacts. It supports:
•533/400 MHz unbuffered, non-registered DDR2 DIMMs
•Serial Presence Detect (SPD) memory only
•Non-ECC memory
•Up to 1 GB of system memory utilizing 512 Mb or 1 Gb technology

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14
Chipset
The chipset used on Mini-ITX Motherboard 2807638 consists of the following devices:
•SiS662 Graphics and Memory Controller (Northbridge)
•SiS964L I/O Controller (Southbridge)
Graphics Subsystem
The Mini-ITX Motherboard 2807638 graphics subsystem features the SiS* Mirage* 1 Graphics
Engine which is integrated in the SiS662 Graphics and Memory Controller.
Audio Subsystem
Mini-ITX Motherboard 2807638 includes a 2-channel audio subsystem based on the following
devices:
•SiS964L I/O Controller
•ADI AD1888 audio codec
The subsystem features:
•S/N (signal-to-noise) ratio: 90 dB
•Microphone input that supports dynamic, condenser, and electret microphones
The subsystem supports the following audio interfaces:
•Front panel audio header, including pins for:
―Line out
―Microphone in
•Back panel audio connectors (see Figure 2):
―Line In
―Line Out
―Mic In

Mini-ITX Motherboard Features
15
Item Description
A Line In
B Line Out
C Mic In
Figure 2. Back Panel Audio Connectors
NOTE
The back panel audio line out connector is designed to power headphones or amplified
speakers only. Poor audio quality occurs if passive (non-amplified) speakers are
connected to this output.
Input/Output (I/O) Controller
The super I/O controller features the following:
•One serial port
•One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
•Serial IRQ interface compatible with serialized IRQ support for PCI systems
•PS/2-style mouse and keyboard interfaces
•Intelligent power management, including a programmable wake up event interface
•PCI power management support
LAN Subsystem
The LAN provides the following functions:
•10/100 Mb/s Ethernet LAN
•Support for RJ-45 connector with status indicator LEDs
•Programmable transit threshold
•Configurable EEPROM that contains the MAC address

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16
x
x
x
x
RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN connector located on the back panel (see
Figure 3).
Figure 3. LAN Connector LEDs
Table 3 describes the LED states when the board is powered up and the
10/100 Ethernet LAN subsystem is operating.
Table 3. RJ-45 10/100 Ethernet LAN Connector LEDs
LED LED State Indicates
Off LAN link is not establishedA (Green)
On LAN link is established
Blinking LAN activity is occurring
Off 10 Mbits/s data rate is selectedB (Yellow)
On (steady state) 100 Mbits/s data rate is selected

Board Features
17
Hi-Speed USB 2.0 Support
NOTE
Computer systems that have an unshielded cable attached to a USB port might not
meet FCC Class B requirements, even if no device or a low-speed USB device is
attached to the cable. Use a shielded cable that meets the requirements for a
full-speed USB device.
The Board supports up to six USB 2.0 ports (two ports routed to the back
panel and four ports routed to two internal USB 2.0 headers). The USB 2.0 ports are
backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at
USB 1.1 speeds.
USB 2.0 support requires both an operating system and drivers that fully support
USB 2.0 transfer rates. Disabling Hi-Speed USB in the BIOS reverts all USB 2.0 ports
to USB 1.1 operation. This may be required to accommodate operating systems that
do not support USB 2.0.
Enhanced IDE Interface
The IDE interface handles the exchange of information between the processor and
peripheral devices such as hard disks and optical drives inside the computer. The
interface supports:
•Up to two IDE devices (such as hard drives)
•ATAPI-style devices (such as CD-ROM or DVD drives)
•Older PIO Mode devices
•Ultra DMA-33/66/100 modes
Expandability
The Board supports one PCI add-in card.
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI
and IDE auto-configuration utilities, and the video BIOS.
IDE Auto Configuration
If you install an IDE device (such as a hard drive) in your computer, the auto-
configuration utility in the BIOS automatically detects and configures the device for
your computer. You do not need to run the BIOS Setup program after installing an
IDE device. You can override the auto-configuration options by specifying manual
configuration in the BIOS Setup program.

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18
PCI Auto Configuration
If you install a PCI add-in card in your computer, the PCI auto-configuration utility in
the BIOS automatically detects and configures the resources (IRQs, DMA channels,
and I/O space) for that add-in card. You do not need to run the BIOS Setup program
after you install a PCI add-in card.
Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can
be accessed and who can boot the computer. A supervisor password and a user
password can be set for the BIOS Setup and for booting the computer, with the
following restrictions:
•The supervisor password gives unrestricted access to view and change all Setup
options. If only the supervisor password is set, pressing <Enter> at the password
prompt of Setup gives the user restricted access to Setup.
•If both the supervisor and user passwords are set, you must enter either the
supervisor password or the user password to access Setup. Setup options are then
available for viewing and changing depending on whether the supervisor or user
password was entered.
•Setting a user password restricts who can boot the computer. The password
prompt is displayed before the computer is booted. If only the supervisor
password is set, the computer boots without asking for a password. If both
passwords are set, you can enter either password to boot the computer.
Related Links:
For instructions on resetting the password, see Clearing Passwords on page 36.
Power Management Features
Power management is implemented at several levels, including:
•Advanced Configuration and Power Interface (ACPI)
•Hardware support:
―Power connectors
―Fan headers
―LAN Wake capabilities
―Wake from USB
―Wake from PS/2 keyboard/mouse
―PME# wakeup support
ACPI
ACPI gives the operating system direct control over the power management and Plug
and Play functions of a computer. The use of ACPI with the Board requires an
operating system that provides full ACPI support.

Board Features
19
Hardware Support
Power Connectors
The Board has two power connectors. See Figure 12 on page 33 for the
location of the power connectors.
Fan Headers
The Board has a 3-pin processor fan header and a 3-pin chassis fan header.
See Figure 11 on page 32 for the location of the chassis fan header.
The Board’s standby power indicator, shown in Figure 4, is lit when there is
standby power to the system. This includes the memory module and PCI bus
connector, even when the computer appears to be off.
If the system has a dual-colored power LED on the front panel, the sleep state is
indicated by the LED turning amber.
Figure 4. Location of the Standby Power Indicator