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Acer Aspire G7750 Service Guide - Page 57

Removing the Liquid Cooler Fan Assembly

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Removing the Liquid Cooler Fan Assembly WARNING:The heat sink becomes very hot when the system is on. NEVER touch the heat sink with any metal or with your hands. 1. See "Removing the Bezel Door" on page 31. 2. See "Removing the Left Side Panel" on page 34. 3. See "Removing the Front Bezel" on page 36. 4. Disconnect the power and two fan cables. 5. Loosen the four screws on the liquid cooler, in the order shown. Chapter 3 49

Section	Page
Table of Contents	7
Features	9
Aspire G7750 Tour	12
Closed Front Panel	12
Front Panel	13
Rear Panel	14
Internal Components	15
System LED Indicators	16
CMOS Setup Utility	17
Entering CMOS setup	18
Navigating Through the Setup Utility	18
Setup Utility Menus	19
Disassembly Requirements	35
Pre-disassembly Procedure	36
Main Unit Disassembly	37
External Modules Disassembly Flowchart	37
Removing the Bezel Door	39
Removing the Hard Disk Drive	40
Removing the Left Side Panel	42
Removing the Right Side Panel	43
Removing the Front Bezel	44
Removing the Optical Drive	46
Removing the Video Cards	47
Removing the TV Tuner Card	49
Removing the Card Reader Drive	50
Removing the Card Reader Board	52
Removing the Backplane Board	54
Removing the Memory Modules	56
Removing the Liquid Cooler Fan Assembly	57
Removing the Fan from the Liquid Cooler	59
Removing the Processor	60
Removing the Power Supply	62
Removing the HDD Fan	64
Removing the Top Cover	65
Removing the USB Board	66
Removing the Mainboard	68
Removing the Front Foot Stand	70
Removing the Rear Foot Stand	71
Hardware Diagnostic Procedure	73
System Check Procedures	74
Power System Check	74
System Internal Inspection	74
POST Error and Beep Codes	75
Online Support Information	85
System Block Diagram	87
Board Layout	88
Mainboard	88
Back Panel I/O	89
System Switches and Jumpers	90
Serial ATA Connectors	90
Fan Power Connectors	90
IEEE 1394 Connector	91
Front Panel Connector	91
Front USB Connector	92
Chassis Intrusion Connector	92
Front Panel Auido Connector	92
Power Connectors	93
CMOS Reset Button	94
Aspire G7750 Series Exploded Diagram	96
Aspire G7750 Series	98
Technical Specifications	103

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