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Acer Veriton X4620G Acer Veriton X4620G Desktop Service Guide - Page 25

Miscellaneous, Parameter, Description, Option, Disabled, Enabled

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Miscellaneous Parameter AHCI Port1/2/3/4 Clock to All DIMM/ PCI/PCIE Spread Spectrum Processor Multiplier Bootup Num-lock Description Displays the status of auto detection of the AHCI device. This item allows you to enable or disable the Clock to all DIMM/PCI/PCIE. If you enable spread spertrum, it can significantly reduce the EMI (ElectroMagneticinterface) generated by the system and voltage according to its temperature. This item shows the information of the processor multiplier. Selects power on state for Num Lock. USB Beep Message Enables or disables BIOS to display error beeps or messages during USB device enumeration. Option Enabled Disabled Enabled Disabled On Off Enabled Disabled Chapter 2 17

Section	Page
Veriton X6620G Service Guide	1
Revision History	2
Copyright	3
Disclaimer	4
Conventions	5
Table of Contents	7
System Tour	9
Features	9
Block Diagram	14
System Components	15
Front Panel	15
Rear Panel	16
Hardware Specifications and Configurations	17
Power Management Function(ACPI support function)	20
System Utilities	21
CMOS Setup Utility	21
Entering CMOS setup	22
Navigating Through the Setup Utility	22
Main	23
Advanced	24
Smart Fan Configuration	30
Power	31
Security	32
Boot Options	34
Exit	35
System Disassembly and Assembly	36
Disassembly Requirements	36
Pre-disassembly Procedure	37
Removing the Side Panel	38
Removing the Front Bezel	39
Removing the Heat Sink Fan Assembly	40
Removing the Processor	42
Removing the Optical Drive	44
Removing the Hard Disk Drive	46
Removing the HDD-ODD Bracket.	48
Removing the COM2 Port Cable and Printer Port Cable	50
Removing the Wireless LAN Card	52
Removing the VGA Card	54
Removing the Memory Modules	55
Removing the Power Supply	56
Removing the System Fan	58
Removing the Mainboard	60
Removing the Internal Speaker	64
Removing the Power Switch,OBR and LED Cable Assembly	65
Removing the USB/Front I/O Board Assembly and Card Reader Board	67
Removing the Intrusion Alarm Cable Assemby	70
Assembly Requirements	71
Assembly Procedure	72
Removing the Side Panel	73
Remove the Front Bezel and the ODD Bracket	74
Remove Outside Connect Slice	75
Reinstalling the Internal Speaker	75
Reinstalling the I/O Shielding	76
Reinstalling the MainBoard	77
Reinstalling the System Fan	80
Reinstalling the Power Supply	82
Reinnstalling the Memory	84
Reinstalling the VGA Card	86
Reinstalling the Wireless LAN Card	88
Reinstalling the Printer Port Cable and COM2 Port Cable	90
Reinstalling the HDD-ODD Bracket.	92
Reinstalling the Hard Disk Drive	94
Reinstalling the Optical Drive	96
Reinstalling the Processor	98
Reinstalling the Heat Sink Fan Assembly	101
Reinstalling the Front Bezel	103
Reinstalling the Side Panel	104
System Troubleshooting	105
Hardware Diagnostic Procedure	105
System Check Procedures	106
Power System Check	106
System External Inspection	106
System Internal Inspection	106
Beep Codes	107
Checkpoints	108
Viewing BIOS checkpoints	108
Bootblock Initialization Code Checkpoints	108
Bootblock Recovery Code Checkpoints	110
BIOS Recovery	111
Jumper and Connector Information	112
M/B Placement	112
Jumper Setting	114
Setting Jumper	115
Checking Connector	116
Connecting Case Components	120
FRU (Field Replaceable Unit) List	123
Veriton X6620G Exploded Diagram	124

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