DFI G5C900-B User Manual

G5C900-B

COM Express Board

User’s Manual

935-G5C901-000G

A01500719

Copyright

This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior writ­ten permission from the copyright holders.

This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any ex­press or implied warranties of merchantability or fitness for any par­ticular purpose. The user will assume the entire risk of the use or the
results of the use of this document. Further, the manufacturer re­serves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or en­tity of such revisions or changes.

© 2008. All Rights Reserved.

Trademarks

Windows® 2000, Windows® CE, Windows® XP and Windows® XP
Embedded are registered trademarks of Microsoft Corporation.
Product names or trademarks appearing in this manual are for iden­tification purpose only and are the properties of the respective own­ers.

FCC and DOC Statement on Class B

This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a residential
installation. 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. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following meas­ures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.

• Consult the dealer or an experienced radio TV technician for
help.

Notice:

1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.

2. Shielded interface cables must be used in order to comply with
the emission limits.

Table of Contents

About this Manual................................................................................

Warranty.................................................................................................

Static Electricity Precaution................................................................

Safety Measures.....................................................................................

About the Package...............................................................................

Specifications..........................................................................................

Board Layout..........................................................................................

System Memory......................................................................................

CPU...........................................................................................................

Installing G5C900-B on the Carrier Board.....................................

Jumper Settings......................................................................................

5

5

6

6

7

8

10

11

15

17

20

Connectors.............................................................................................

LEDs............................................................................................................

SPI Flash ROM Socket..........................................................................

Cooling Options....................................................................................

BIOS Setup.............................................................................................

Supported Software..............................................................................

Watchdog Timer....................................................................................

21

27

28

29

33

72

115

About this Manual

An electronic file of this manual is included in the CD. To view the
user’s manual in the CD, insert the CD into a CD-ROM drive. The
autorun screen (Main Board Utility CD) will appear. Click “User’s
Manual” on the main menu.

Warranty

1. Warranty does not cover damages or failures that arised from
misuse of the product, inability to use the product, unauthorized
replacement or alteration of components and product specifica­tions.

2. The warranty is void if the product has been subjected to physi­cal abuse, improper installation, modification, accidents or unau­thorized repair of the product.

3. Unless otherwise instructed in this user’s manual, the user may
not, under any circumstances, attempt to perform service, adjust­ments or repairs on the product, whether in or out of warranty.
It must be returned to the purchase point, factory or authorized
service agency for all such work.

4. We will not be liable for any indirect, special, incidental or
consequencial damages to the product that has been modified
or altered.

COM Express Board

Static Electricity Precautions

It is quite easy to inadvertently damage your PC, system board,
components or devices even before installing them in your system
unit. Static electrical discharge can damage computer components
without causing any signs of physical damage. You must take extra
care in handling them to ensure against electrostatic build-up.

1. To prevent electrostatic build-up, leave the board in its anti-static
bag until you are ready to install it.

2. Wear an antistatic wrist strap.

3. Do all preparation work on a static-free surface.

4. Hold the device only by its edges. Be careful not to touch any of
the components, contacts or connections.

5. Avoid touching the pins or contacts on all modules and connec­tors. Hold modules or connectors by their ends.

Important:

Electrostatic discharge (ESD) can damage your processor,
disk drive and other components. Perform the upgrade in­struction procedures described at an ESD workstation
only. If such a station is not available, you can provide
some ESD protection by wearing an antistatic wrist strap
and attaching it to a metal part of the system chassis. If a
wrist strap is unavailable, establish and maintain contact
with the system chassis throughout any procedures requir­ing ESD protection.

Safety Measures

To avoid damage to the system:

• Use the correct AC input voltage range

To reduce the risk of electric shock:

• Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

..

.

..

Battery:

• Danger of explosion if battery incorrectly replaced.

• Replace only with the same or equivalent type recommend
the manufacturer.

• Dispose of used batteries according to local ordinance.

by

6

About the Package

The package contains the following items. If any of these items are
missing or damaged, please contact your dealer or sales representa­tive for assistance.

; The system board
; A user’s manual
; One “Main Board Utility” CD
; One QR (Quick Reference)

The board and accessories in the package may not come similar to
the information listed above. This may differ in accordance to the
sales region or models in which it was sold. For more information
about the standard package in your region, please contact your
dealer or sales representative.

COM Express Board

7

COM Express Board

Specifications

Processor

Chipset

System Memory

BIOS

Graphics

• Intel® CoreTM Duo/Solo processor
Intel® CoreTM2 Duo processor

- 667MHz/533MHz system data bus

• Intel® Celeron® M processor

- 533MHz system data bus (on Ultra Low Voltage)

• Processor socket: mPGA478M

• Cooling options

- Heatspreader

- Heat sink with cooling fan

®

• Intel

• One 200-pin SODIMM socket (1.8V)

• Supports up to 2GB DDR2 SDRAM

• Supports 533MHz and 667MHz DDR2 SDRAM

• SPI interface BIOS (8Mbit)

• Internal graphics features

• Integrated graphics interface

chipset

- Intel® 945GME Graphics Memory Controller Hub (GMCH)

- Intel® ICH7M

- DVMT 3.0 support

®

- Intel

- Intel

- Dual Independent display pipes

- Intel Gen 3.5 Integrated Graphics Engine

- Analog CRT

- LVDS interface

Dual-Frequency Graphics Technology

®

Smart 2D Display Technology

- Integrated 400MHz RAMDAC

- Analog monitor supports up to UXGA

- Panel support up to UXGA (1600x1200)

- 25MHz-112MHz single/dual channel @ 18/24bpp, TFT panel
type support

LAN

Audio

Expansion
Interfaces

• One Realtek RTL8111C PCI Express Gigabit controller

• Supports 10Mbps, 100Mbps and 1Gbps data transmission

• IEEE 802.3 (10/100Mbps) and IEEE 802.3ab (1Gbps) compliant

• Supports AC97 digital interface

• 1 PCI Express x16

• 3 PCI Express x1

• 4 PCI (Master)

8

COM Express Board

Serial ATA

IDE

Damage Free
Intelligence

Connectors

Temperature

Humidity

Power

Regulatory

PCB

• Supports 2 Serial ATA interfaces which are compliant with SATA

1.0 specification

• Supports up to 2 IDE devices

• Supports up to Ultra ATA 100

• Monitors CPU temperature and overheat alarm

• Monitors CPU Smar t fan speed and failure alarm

• Monitors Vcore/1.8V/1.5V voltages and failure alarm

• COM Express connectors

- Two 220-pin COM Express standard connectors

- Module connector pin: Tyco 3-6318490-6

• 1 CPU fan connector

• Operating: 0

• Non-operating: -40oC to 85oC

• Operating: 10% to 90%

• Input: 12V, 5VSB, VCC_RTC

• EMC: CE, FCC Part 15 Class B

• Dimensions

- COM Express basic form factor

- 9.5cm (3.74") x 12.5cm (4.9")

• Compliance

- PICMG COM Express R1.0 basic form factor, Type 2

o

C to 60oC

9

COM Express Board

Board Layout

10

System Memory

SODIMM

COM Express Board

BIOS Setting

Configure the system memory in the Advanced Chipset Features
submenu of the BIOS. Refer to chapter 3 of the carrier board
manual for more information.

11

COM Express Board

Installing SODIMM

Note:

The board used in the following illustrations may not resemble
the actual board. These illustrations are for reference only.

1. Make sure the PC and all other peripheral devices connected to
it has been powered down.

2. Disconnect all power cords and cables.

3. Locate the SODIMM socket on the board.

4. Note the key on the socket. The keying mechanism ensures the
module can be plugged into the socket in only one way.

12

5. Grasping the module by its edges, inser t the module into the
socket at an approximately 30 degrees angle. Note that the
socket and module are both keyed, which means the module can
be plugged into the socket in only one direction.

COM Express Board

6. To seat the module into the socket, apply firm even pressure to
each end of the module until it slips down into the socket. The
contact fingers on the edge of the module will almost completely
disappear inside the socket.

7. Push down the module until the clips at each side of the socket
lock into position. You will hear a distinctive “click”, indicating the
module is correctly locked into position.

ClipClip

8. To remove the module, simultaneously push the retaining clips
outward to unlock the module.

13

COM Express Board

9. If the board already comes installed with the heat sink / fan
assembly, you will still be able to install the module without re­moving the heat sink / fan assembly. Avoid constant removal and
installation of the assembly as this will easily damage the compo­nents on the board.

Despite limited space to accessing the SODIMM socket, installing
the module is basically the same as described earlier.

a) Insert the module into

the socket at an approxi­mately 30 degrees angle.

b) Push down the module

until the clips at each side
of the socket lock into
position.

c) To remove the module,

simultaneously push the
retaining clips outward to
unlock the module. You
can also use a thin blunt
object to push the clips
outward. The module will
release from the socket.

14

CPU

Overview

The board is equipped with a surface mount mPGA478M CPU
socket.

Installing the CPU

1. Make sure the PC and all other peripheral devices connected to
it has been powered down.

2. Disconnect all power cords and cables.

3. Locate the mPGA478M socket on the board.

COM Express Board

X

4. Use a screwdriver to turn the screw to its unlock position.

Lock

Unlock

15

COM Express Board

5. Position the CPU above the socket. The gold triangular mark on
the CPU must align with pin 1 of the CPU socket.

Important:

1. Only Use Intel® CoreTM Duo/Solo processor or
Intel® Celeron® M processor manufactured on
65nm technology. Intel Pentium M and Intel Celeron

M processors manufactured on 0.13 micron and 90nm
technology are not supported. Installing an incompatible
processor will cause severe damage to both the proces­sor and board.

2. Handle the CPU by its edges and avoid touching the
pins.

Pin 1 of the socket

Gold
triangular
mark

6. Insert the CPU into the socket until it is seated in place. The
CPU will fit in only one orientation and can easily be inserted
without exerting any force. Use a screwdriver to turn the screw
to its lock position.

Important:

Do not force the CPU into the socket. Forcing the CPU into
the socket may bend the pins and damage the CPU.

16

COM Express Board

Installing G5C900-B on the Carrier Board

1. Insert the screws into
the mounting holes ­from the bottom
through the top of the
carrier board.

Screws

2. From the top side of
the board, fasten the
bolts into the screws.

Mounting
hole

Bolts

17

COM Express Board

3. The right photo shows
the solder side of the
board with the screws
already fixed in place.

4. The right photo shows
the component side of
the board with the bolts
already fixed in place.

5. Grasping G5C900-B by
its edges, position it on
top of the carrier board
with its mounting holes
aligned with the bolts
on the carrier board.
This will also align the
COM Express connec­tors of the two boards
to each other.

Press G5C900-B down
firmly until it is com­pletely seated on the
COM Express connec­tors of the carrier
board.

18

6. Position the heat sink on
top of G5C900-B with
the heat sink’s mounting
holes aligned with the
mounting holes of
G5C900-B.

COM Express Board

Screws

Use the provided long
screws to secure the
heat sink to the board.

7. Connect the cooling
fan’s cable connector to
the CPU fan connector
on the board.

Screwdriver

Heat sink

G5C900-B

19

COM Express Board

Jumper Settings

Clear CMOS Data

312

1-2 On: Normal

(default)

312

2-3 On:

Clear CMOS Data

JP1

X

If you encounter the following,

a) CMOS data becomes corrupted.
b) You forgot the supervisor or user password.

you can reconfigure the system with the default values stored in the
ROM BIOS.

To load the default values stored in the ROM BIOS, please follow
the steps below.

1. Power-off the system and unplug the power cord.

2. Set JP1 pins 2 and 3 to On. Wait for a few seconds and set JP1
back to its default setting, pins 1 and 2 On.

3. Now plug the power cord and power-on the system.

20

Connectors

CPU Fan Connector

COM Express Board

Fan Speed

X

Detect

Power

Ground

3

1

Connect the CPU fan’s cable connector to the CPU fan connector
(J1) on the board. The cooling fan will provide adequate airflow
throughout the chassis to prevent overheating the CPU and board
components.

BIOS Setting

The “PC Health Status” submenu of the BIOS will display the current
speed of the cooling fan. Refer to chapter 3 of the carrier board
manual for more information.

21

COM Express Board

COM Express Connectors

The COM Express connectors are used to interface the G5C900-B
COM Express board to the carrier board.

Connect the COM Express connectors, lcoated on the solder side of
the board, to the COM Express connectors on the carrier board.
Refer to the “Installing G5C900-B on the Carrier Board” section for
more information.

COM Express
connectors

Refer to the following pages for the pin functions of these connec­tors.

22

COM Express Board

GPIO13

GPIO14

GPIO15

3032.81 MIL

2956.69 MIL

3763.79 MIL

N.C.
N.C.

GPIO12

5056.19 MIL

N.C.
N.C.
GPIO6
N.C.
N.C.

3430.94 MIL

23

COM Express Board

N.C.
N.C.

N.C.
N.C.

GPIO38 2662.05 MIL

GPIO39 3084.59 MIL

N.C.
N.C.

N.C.
N.C.

1048.63 MIL

1019.41 MIL

N.C.

N.C.
N.C.

N.C.

24

N.C.
N.C.

GPIO7

3905.19 MIL

COM Express Board

N.C.

N.C.
N.C.

N.C.

N.C.

N.C.

N.C.

N.C.

25

COM Express Board

N.C.

N.C.
N.C.

1779.21 MIL

PCI_C/BE0#
PCI_AD9

RSVD

N.C.

26

LEDs

COM Express Board

Standby

Power LED

DRAM

Power LED

DRAM Power LED

This LED will light when the system’s power is on.

Standby Power LED

This LED will light when the system is in the standby mode.

Important:

If the DRAM Power LED or Standby Power LED is lighted, you
must power-off the system then turn off the power supply’s
switch or unplug the power cord prior to installing any memory
modules or add-in cards.

27

COM Express Board

SPI Flash ROM Socket

1. The photo on the right
shows the location of
the SPI flash ROM
socket.

2. If you need to replace
the ROM, open the left
cover first then the right
cover of the socket.

3. Take out the ROM and
replace it with a new
one. Close the right
cover first then the left
cover.

Open left cover

Open right cover

SPI Flash ROM

28

Cooling Options

COM Express Board

Heatspreader

Heatspreader on G5C900-B

(top view)

1

2

5

Bottom View of the Heatspreader

• "1" to "5" denote the locations of the thermal pads
designed to contact the corresponding components
that are on G5C900-B.

• Remove the plastic covering from the thermal pads
prior to mounting the heatspreader onto G5C900-B.

3

4

29

COM Express Board

Dimensions

B

A

A1

B

A

B

B

A1

B

Top View

"A" and "A1" mounting holes

• These mounting holes are used to
secure the heatspreader onto
G5C900-B.

• "A" - Use M2.5 screws with minimum
length of 3.7 mm.
"A1" - Use M2.5 screws with minimum
length of 13 mm.

"B" mounting posts

• These mounting posts are used to
mount the heatspreader and G5C900­B assembly onto the carrier board.

• Use M2.5 screws with minimum
length of 15 mm.

Side View

Bottom View

30