Acer M3900 manual Frequency/Voltage Control

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Frequency/Voltage Control

Parameter

Description

Option

 

 

 

Clock to All DIMM/PCI

Enables or disables control the clock to all DIMM/PCI

Enabled

 

 

Disabled

 

 

 

Spread Spectrum

Enables or disables the reduction of the mainboard’s EMI.

Enabled

 

Note: Remember to disable the Spread Spectrum feature if you are

Disabled

 

overclocking. A slight jitter can introduce a temporary boost in clock

 

 

speed causing the overclocked processor to lock up.

 

 

 

 

Chapter 2

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Contents Acer Aspire M3900 Service Guide Revision History Copyright Disclaimer Conventions Service Guide Coverage Table of Contents FRU Field Replaceable Unit List Features ChapterHard disk On-Board Graphic solutionAudio Optical diskUSB ports Extension slotTotal I/O ports System Bios Power supplyBlock Diagram System Components Front PanelRear Panel Hardware Specifications and Configurations IOS Hotkey ListMain Board Major Chips Memory Combinations System MemoryAudio Interface USB Port Power ManagementSata Interface Environmental RequirementsGlobal Standby Mode Power Management FunctionACPI support functionDevice Standby Mode Suspend ModeCmos Setup Utility System UtilitiesEntering Cmos setup Navigating Through the Setup UtilitySetup Utility Menus Parameter DescriptionProduct Information Standard Cmos Features Parameter Description OptionAdvanced Bios Feature EnabledAdvanced Chipset Features Integrated Peripherals Power Management Setup PC Health Status Frequency/Voltage Control Bios Security Features Setting a supervisor passwordLoad Default Settings Save & Exit Setup Exit Without Saving System Disassembly Disassembly RequirementsPre-disassembly Procedure Removing the Side Panel Removing the Heat Sink Fan Assembly Page Removing the Processor Removing the VGA Card Removing the TV Card Removing the Mode Card Removing the Memory Modules Removing the Hard Disk Drive Chapter Removing the USB Board of Rear Panel Chapter Removing the Front Bezel Pull the bezel away from the chassis Removing the Optical Drive Chapter Removing the Removable HDD Chapter Page Removing the Power Supply Lift the power supply module out of the chassis Chapter Removing the Card Reader Pull the card reader out of chassis Chapter Removing the Mainboard Page System Troubleshooting Power System Check System External InspectionSystem Internal Inspection Beep Codes Viewing Bios checkpoints Bootblock Initialization Code CheckpointsCheckpoints System is waking from Acpi S3 state Bootblock Recovery Code Checkpoints Checkpoint DescriptionBios Recovery Jumper and Connector Information PlacementLabel Description Jumper Setting Setting JumperInternal header pin definition Front USB Header USBVCC1 Connector pin definition Connector Name Function DefinitionSATA1TXP SATA1TXN ATX12V Conn FRU Field Replaceable Unit List Aspire M3900 Exploded DiagramAM350-ASSY Aspire M3900 Exploded DiagramAM351-ASSY Aspire M3900 FRU List Components Model Name or Key Spec Acer P/NCPU VGA NV GT330 2GB DDR2 DVI+HDMI+VGA ATX Samsung Geforce 310 512MB DDR2 Samsung 64BITS VGA DVI Hdmi Components Model Name or Key Spec Acer P/N