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Acer Aspire M3970 Acer Aspire M3970 Service Guide - Page 52

Removing the Power Supply, Lift the power supply module out of the chassis.

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Removing the Power Supply 1. Disconnect the 4-pin and 24-pin power supply cables from the mainboard. 2. Remove the four screws that secures the power supply to the chassis. 3. Lift the power supply module out of the chassis. 44 Chapter 3

Section	Page
Aspire M3970 Service Guide	1
Revision History	2
Copyright	3
Disclaimer	4
Conventions	5
Table of Contents	7
System Tour	9
Features	9
Block Diagram	12
System Components	13
Front Panel	13
Rear Panel	14
Hardware Specifications and Configurations	15
Power Management Function(ACPI support function)	18
System Utilities	19
CMOS Setup Utility	19
Entering CMOS setup	20
Navigating Through the Setup Utility	20
Setup Utility Menus	21
Main	21
Advanced	22
Power	27
Security	28
Boot Options	29
Exit	30
System Disassembly and Assembly	31
Disassembly Requirements	31
Pre-disassembly Procedure	32
Removing the Side Panel	33
Removing the Front Bezel	34
Removing the Heat Sink Fan Assembly	35
Removing the Processor	37
Removing the VGA Card	39
Removing the Wireless Lan Card	40
Removing the TV-Tuner Card	41
Removing the PCI-E Modem Card	42
Removing the Memory Modules	43
Removing the Hard Disk Drive	44
Removing the Bracket of Removable HDD	46
Removing the Optical Drive	47
Removing the Daughter Board	51
Removing the Power Supply	52
Removing the Mainboard	53
Removing the Top Cover	56
Removing the Power Switch and LED Cable Assembly	58
Removing the Card Reader	59
Removing the Top USB and Audio I/O Assembly	60
Assembly Requirements	62
Assembly Procedure	63
Install the Processor	64
Install the Heat Sink Fan Assembly	65
Install the Memory	66
Removing the Side Panel	67
Removing the Daughter Board	68
Removing the Cage of Hard Disk Drive	69
Removing the PCI Cover	70
Install the Power Supply	71
Install the I/O Shielding	72
Install the Main Board	73
Install the Optica Drive	75
Install the Hard Disk Drive	77
Install the Daughter Board	80
Install the System FAN	81
Install the PCI-E Modem Card	82
Install the the TV-Tuner Card	83
Install the Wireless LAN Card	84
Install the VGA Card	85
Install the Front Bezel	86
Install the Side Panel	87
System Troubleshooting	88
Hardware Diagnostic Procedure	88
System Check Procedures	89
Power System Check	89
System External Inspection	89
System Internal Inspection	89
Beep Codes	90
Checkpoints	91
Viewing BIOS checkpoints	91
Bootblock Initialization Code Checkpoints	91
Bootblock Recovery Code Checkpoints	93
BIOS Recovery	94
Jumper and Connector Information	97
M/B Placement	97
Jumper Setting	99
Setting Jumper	99
FRU (Field Replaceable Unit) List	107
Aspire M3970 Exploded Diagram	108

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