Acer X3910 manual Remove the screw D on the rear panel

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12.Remove the screw (D) on the rear panel.

Screw (Quantity)	Color	Torque	Part No.

M3xL5 BZN (1)	Black	5.5 to 6.5 kgf-cm	86.5A5B6.012

13.Lift the board from the chassis.

NOTE: The mainboard has been highlighted with a yellow rectangle as above image shows. Please detach the mainboard and follow local regulations for disposal.

Chapter 3

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Contents Acer Aspire Service Guide Revision History Copyright Disclaimer Conventions Service Guide Coverage Table of Contents System Block Diagram and Board Layout Chapter FeaturesOperating system and software System BiosPower supply PortsDimension and weight Front Panel System ComponentsIcon Component Rear Panel Internal Components LED indicator Color LED status Description System LED IndicatorsSystem Utilities Cmos Setup UtilityNavigating Through the Setup Utility Entering Cmos setupSetup Utility Menus Parameter Description Product InformationAtapi Cdrom Standard Cmos FeaturesCD/DVD Advanced Bios FeaturesEist Advanced Chipset FeaturesAhci Integrated PeripheralsPower Management Setup Vbat PC Health StatusFrequency/Voltage Control Setting a system password Bios Security FeaturesRemoving a system password Cmos Setup Utility Load Default SettingsSave & Exit Setup Exit Without Saving Bios Recovery Chapter Disassembly Requirements System DisassemblyPre-disassembly Procedure Main Unit Disassembly Main Unit DisassemblyRemoving the Side Panel Removing the Front Bezel Removing the Heat Sink Fan Assembly Removing the Processor Removing the Optical Drive Page Remove the two screws C from the optical drive Removing the Hard Disk Drive Removing the Power Supply Lift the power supply module out of the chassis Chapter Removing the Memory Modules Removing the TV Tuner Card Removing the VGA Card Removing the Front I/O and Card Reader Boards Screw Quantity Pull the I/O board out of the bracket X3810 Chapter Removing the Mainboard Remove the screw D on the rear panel Chapter Hardware Diagnostic Procedure System TroubleshootingSystem Internal Inspection System Check ProceduresPower System Check System External InspectionCheckpoint Description Viewing Bios checkpointsBootblock Initialization Code Checkpoints CheckpointsBootblock Recovery Code Checkpoints Post Code Checkpoints Initialize RTC date/time High Byte XY DIM Code CheckpointsBeep Codes Boot Block Beep CodesPost Bios Beep Codes Beep Symptom Cause and DescriptionTroubleshooting Post Bios Beep Codes Message Displayed Description Error MessagesBoot MemoryStorage Device Virus Related Eprom System ConfigurationMiscellaneous CmosMPS Table Multi-processor eModule Error Messages USB eModule Error MessagesSmbios eModule Error Messages CPU eModule Error MessagesOnline Support Information System Block Diagram System Block Diagram and Board LayoutMainboard Board LayoutCode Description KBMSCONN1 System Jumper Name Location Default SettingsFRU Field Replaceable Unit List X3910 Exploded Diagram Part Name Category Part Name Acer Part Number X3910 FRU ListModem Card LITE-ON D-1156E#A10A LOW-PROFILE PCI-E 56K ODD Pioneer BD Combo Sata HH DL 4X BDC-203RS W/BRACKET CPU Heatsink AIR Cooler LGA775 TMDC6 NEW Sprig Keyboard PS2 104KEY Chicony KB-07593S32552V Russian Black Keyboard PS2 105KEY LITE-ON SK-9620 SG-30600-35W Swedish Keyboard USB 105KEY Chicony KU-07606CH2552V SWISS/G Black Keyboard USB 105KS LITE-ON SK-9625 Black Belgium Pointing Device Mouse PS2 OPT SM-9620 Liteon SM-30600-00W Intel Core 2 Duo Specification Intel Core 2 Quad SpecificationAppendix a Intel Celeron Dual-Core Specification Intel Pentium Dual-Core SpecificationSystem Memory Hard Disk Drive Network Interface SpecificationAudio Interface Super Multi SpecificationRW 8X CLV DVD-ROM Appendix a