Acer Veriton M490G User manual

Acer
Veriton M498G/M490G/M490
Service Guide
PRINTED IN TAIWAN

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Revision History
Please refer to the table below for the updates made on this service guide.
Date Chapter Updates

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Copyright
Copyright © 2010 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without
the prior written permission of Acer Incorporated.

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Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular
purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the
programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its
dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential
damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Pentium Dual-Core, Celeron Dual-Core, Core 2 Duo, Core 2 Quad, Celeron, and combinations thereof, are
trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.

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Conventions
The following conventions are used in this manual:
SCREEN
MESSAGES Denotes actual messages that appear on screen.
NOTE Gives additional information related to the current topic.
WARNING Alerts you to any physical risk or system damage that might result from doing
or not doing specific actions.
CAUTION Gives precautionary measures to avoid possible hardware or software
problems.
IMPORTANT Reminds you to do specific actions relevant to the accomplishment of
procedures.

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Service Guide Coverage
This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION
decided for Acer's "global" product offering. To better fit local market requirements and enhance product
competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g. add-on
card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic
service guide. In such cases, please contact your regional offices or the responsible personnel/channel to
provide you with further technical details.
FRU Information
Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available
on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in
the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a
DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the
list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

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System Tour 1
Features 1
Block Diagram 5
System Components 6
Front Panel 6
Rear Panel 7
Hardware Specifications and Configurations 8
Power Management Function(ACPI support function) 11
System Utilities 12
CMOS Setup Utility 12
Entering CMOS setup 13
Navigating Through the Setup Utility 13
Setup Utility Menus 14
System Disassembly 27
Disassembly Requirements 27
Pre-disassembly Procedure 28
Removing the Side Panel 29
Removing the Front Bezel 30
Removing the Heat Sink Fan Assembly 31
Removing the Processor 32
Removing the Memory Modules 33
Removing the VGA Card 34
Removing the Hard Disk Drive 35
Removing the Optical Drive 37
Removing the System Fan 39
Removing the Power Supply 40
Removing the OBR and Intrusion Alarm Assembly 41
Removing the Card Reader 43
Removing the Internal Speaker 44
Removing the Mainboard 45
Removing Other Side Panel 47
Removing the Front I/O and USB Assembly 48
Removing the Power Switch and LED Cable Assembly 50
System Troubleshooting 51
Hardware Diagnostic Procedure 51
System Check Procedures 52
Power System Check 52
System External Inspection 52
System Internal Inspection 52
Beep Codes 53
Checkpoints 54
BIOS Recovery 57
Jumper and Connector Information 58
M/B Placement 58
Jumper Setting 60
Setting Jumper 60
Table of Contents

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FRU (Field Replaceable Unit) List 68
Veriton M498G/M490G/M490 Exploded Diagram 69
Veriton M498G/M490G/M490 FRU List 70

Chapter 1 1
Features
Below is a brief summary of the computer’s many feature:
NOTE: The features listed in this section is for your reference only. The exact configuration of the system
depends on the model purchased.
Operating System
•Microsoft Windows 7 HP/Home Basic X32
•Microsoft Windows 7 Prefessional X64
•Microsoft XPP SP3
•Linpux Linux X windows mode
•FreeDos
Processor
•Socket Type: Intel Socket H2 ,LGA 1156 pin
•Socket Quantity: 1
•Processor Type:
•Intel Lynnfield/Clarkdale DMI/FDI 1333 MHz CPUs(co-layout)
•Lynnfield Quad Core 45nm family mainstream processors
•Clarkdale Dual Core with on boards Graphics 32nm
Chipset
•PCH: Intel H57 (Ibex Peak)
PCB
•4 Layer uATX form factor 9.6in X 9.6in (24.38cm X 24.38cm)
Memory subsystem
•Socket Type: DDR III Un-buffered DIMM connector
•Socket Quantity: 4
•2 channels, 2 DIMMs per channel.
•Different colors for DIMM 0 and DIMM 1
•1GB/2GB/4GB DDR3 1.5V 1333/1066 Un-buffered Non-ECC DIMM support
•1 GB to 16GB Max memory support
•Design Criteria:
•Must meet Intel Lynnfield and Clarkdale Chipset platform design guide
•Support 1.5V DIMM
•Dual channel should be enabled always when plug-in 2 same memory size DDRIII memory
module
System Tour
Chapter 1

2Chapter 1
Hard disk drive
•Support up to two SATA ports
•3.5"
•Capacity and models are listed on FRU list
Optical disk drive
•Support one SATA 5.25" standard ODD
•Support DVD-ROM, DVD-SuperMulti, BD-combo, BD-rewrite
•Maximum ODD depth to 185mm with bezel
•Models are listed on FRU list
Floppy disk drive
•Support one Floppy disk drive(optional)
Graphics card
•No mechanical retriction to support for double slot, full length graphics cards in the single PSIe X16 slot
Vedio
•Intel Lynnfield/Clarkdale on die graphic solution
•DVMT 5.0 technology support
•Enhanced 3D and Clear Video technology support
•1 D-sub VGA port on rear
•1 DVI-D port at rear side
•Dual View function support
Audio
•Chip : HD audio codec ALC662-VC HD codec 5.1
•Connectors support:
•Rear 3 jack follow HD audio definition (ALC662-VC)
•Audio jacks color coding: should meet Microsoft Windows Logo Program Device Requirements:
Audio-0002
•1 S/PDIF-out header (1*4)
•1 front panel audio header (2*5)
•1 internal speaker header (2*4)
•Add HD de-pop CKT
Serial ATA controller
•Slot Type: SATA connector
•Six SATA ports:
•4 for HDD
•2 for ODD
•Storage Type support:
1.HDD : Support RAID 0/1/5/10
2.Blue Ray ODD
•3.AHCI mode supported for internal SATA port