eMachines E628 Thermal Unit Failure

163 Chapter 4

Thermal Unit Failure

If the Thermal Unit fails, perform the follo wing actions one at a time to correct the problem. Do not replace a

non-defective FRUs:

Start

Reconnect the

cable to the

Mainboard

Check Fan power cable

Check Fan Swap the Thermal

Module

CPU Heatink well

seated? Seat it well

Check CPU Swap CPU

Swap Mainboard

Contents

Main Page Copyright Disclaimer Conventions Preface Page System Specifications 1 System Utilities 23 Machine Disassembly and Replacement 42 Troubleshooting 148 Jumper and Connector Locations 173 FRU (Field Replaceable Unit) List 177 Model Definition and Configuration 190 Test Compatible Components 206 Online Support Information 210 Index 211 Page System Specifications Chapter 1 Features Page Page 4Chapter 1 System Block Diagram ENE KB926 AMD S1G1 Processor ATI RS780MN ATI SB710 Your Notebook Tour Front View Closed Front View Left View Right View Base View Rear View Indicators TouchPad Basics Using the Keyboard Lock Keys and embedded numeric keypad Windows Keys Hot Keys Special Keys Hardware Specifications and Configurations Page Page Page Page Page Page Page System Utilities Chapter 2 BIOS Setup Utility Navigating the BIOS Utility Information Main Advanced Page Security Page Page Power Boot Exit Page DOS Flash Utility Page Remove HDD/BIOS Password Utilities Page Miscellaneous Utilities Using Boot Sequence Selector Using DMITools Example 1: Read DMI Information from Memory Example 2: Write Product Name to EEPROM Using the LAN MAC Utility Page Machine Disassembly and Replacement Chapter 3 Disassembly Requirements Related Information General Information Pre-disassembly Instructions Disassembly Process External Module Disassembly Process External Modules Disassembly Flowchart Page Page Page Page Page Page Page Page Page Page Page Page Page Main Unit Disassembly Process Main Unit Disassembly Flowchart Page Removing the Keyboard Page Page Page Page Page Page Page Removing the Touchpad Bracket Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Removing the Thermal Module Page LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Replacing the Power Board Page Page Page Page Page Page Page Page Page Page Page Replacing the DIMM Modules Page Page Page Page Page Page Page Page Page Page Troubleshooting Chapter 4 Common Problems Power On Issue Computer Shutsdown Intermittently No Display Issue No POST or Video Abnormal Video Display Random Loss of BIOS Settings Page Page Sound Problems Internal Microphone Failure Microphone Problems HDD Not Operating Correctly ODD Failure ODD Not Operating Correctly Discs Do Not Play Discs Do Not Burn Properly Playback is Choppy Drive Not Detected Drive Read Failure Page 161 Chapter 4 Wireless Function Failure Chapter 4 162 Bluetooth Function Failure Easy Button Failure 163 Chapter 4 Thermal Unit Failure External Mouse Failure Other Failures Intermittent Problems Undetermined Problems POST Code Tables Sec Memory DLL Timing Control Registers, RCOMP settings BDS & Specific action: Each PEIM entry point used in 80_PORT Page Page Page Page Jumper and Connector Locations Chapter 5 Top View Bottom View Clearing Password Check and BIOS Recovery Clearing Password Check Hardware Open Gap Description Steps for Clearing BIOS Password Check BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Hotkey: Steps for BIOS Recovery from USB Storage: FRU (Field Replaceable Unit) List Chapter 6 Aspire 5538 Exploded Diagrams Main Assembly LCD Assembly Aspire 5538 FRU List Page Page Page Page Page Page Screw List Page Page Appendix A 190 Model Definition and Configuration Appendix A Aspire 5538 Series 191 Appendix A Appendix A 192 193 Appendix A Appendix A 194 195 Appendix A Appendix A 196 197 Appendix A Model Memory 1Memory SW1 Card 2HDD 1(GB) ODD Extra Appendix A 198 Model Memory 1Memory SW1 Card 2HDD 1(GB) ODD Extra 199 Appendix A Model Memory 1Memory SW1 Card 2HDD 1(GB) ODD Extra Appendix A 200 Model Wireless LAN Wireless Model Memory 1Memory SW1 Card 2HDD 1(GB) ODD Extra 201 Appendix A Model Wireless LAN Wireless Appendix A 202 Model Wireless LAN Wireless 203 Appendix A Model Wireless LAN Wireless Appendix A 204 Model Wireless LAN Wireless Page Test Compatible Components Appendix B Windows XP Environment Test Page Page Online Support Information Appendix C Index A B C D J K L M N U V W