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Acer Veriton 7700G Veriton 3700G / 5700G / 7700G Service Guide - Page 51

Frequency Control, Parameter, Description, Option, Enabled, Disabled

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Frequency Control The following table describes the parameters found in this menu. Parameter CPU Clock Ratio Auto Detect PCI CLK Spread Spectrum Description Option Core Clock Frequency to System Bus Ratio (RO) shown on the screen This option allows you to enable/disable the feature of auto Enabled detecting the clock frequency of the installed PCI bus. Disabled If you enable spread spectrum, it can significantly reduce the EMI (Electro Magnetic Interference) generated by the system. Disabled When you press the Alt+F4, the hidden page wil replace the origional one. 45 Chapter 2

Section	Page
Cover	1
Revision History	2
Copyright	3
Disclaimer	3
Conventions	4
Preface	5
T.O.C	6
Ch1. System Specifications	7
Overview	7
Features	8
Front Panel for Veriton 3700G	10
Rear Panel for Veriton 3700G	12
Front Panel for Veriton 5700G	14
Rear Panel for Veriton 5700G	16
Front Panel for Veriton 7700G	18
Rear Panel for Veriton 7700G	20
System Block Diagram	22
Keyboard	23
Hardware Specifications and Configurations	25
Ch2. System Utilities	30
Entering Setup	31
Product Information	33
Standard CMOS Features	36
IDE Channel 0/1 Master/Slave	38
Advanced BIOS Features	40
Integrated Peripherals	42
Power Management Setup	45
PnP/PCI Configuration	48
PC Health Status	49
Fan Control	50
Frequency Control	51
Load Optimized Settings	53
System Security	54
Set Supervisor Password	54
Set User Password	55
Bypassing the Password	55
Save & Exit Setup	57
Exit Without Saving	58
Ch3. Machine Disassembly and Replacement	60
General Information	61
Before You Begin	61
VT 3700G Disassembly Flow Chart	62
Standard Disassembly Procedure	63
Opening the Housing	63
Removing the Housing	63
Removing the ODD/FDD/SATA HDD	63
Removing the Internal Cables/Connectors and Memory	65
Removing the CPU Fan Sink, CPU and System Fan	66
Removing the Power Supply and Main Board	67
Removing the Upper case	68
Removing the Intrusion Alarm, LED Module and Daughter Board Module	68
VT 5700G Disassembly Flow Chart	71
Standard Disassembly Procedure	72
Opening the Housing	72
Removing the Housing	72
Removing the ODD/FDD/SATA HDD	72
Removing the Internal Cables/Connectors and Memory	74
Removing the CPU Fan Sink, CPU and System Fan	75
Removing the Power Supply and Main Board	76
Removing the LED Module and Daughter Board Module	77
VT 7700G Disassembly Flow Chart	79
Standard Disassembly Procedure	80
Opening the System	80
Removing the Front Panel	80
Removing the ODD/FDD/SATA HDD	80
Removing the Internal Cables/Connectors and Memory	82
Removing the CPU Fan Sink, CPU and System Fan	83
Removing the Power Supply and Main Board	84
Removing the Upper Cover and Daughter Board Module	85
Removing the Intrusion Alarm and LED Module	86
Ch4. Troubleshooting	87
Power-On Self-Test (POST)	88
POST Error Messages List	94
Error Symptoms List	96
Undetermined Problems	100
Ch5. Jumper and Connector Information	101
Jumpers and Connectors	101
Jumper and Connector Description	102
Jumper Setting	106
Ch6. FRU (Field Replaceable Unit) List	107
Veriton 7700G Exploded Diagram	108
Veriton 5700G Exploded Diagram	109
Veriton 3700G Exploded Diagram	110
AppA. Model Definition and Configuration	121
Veriton 7700G, 5700G, 3700G	121
AppB. Test Compatible Components	122
Microsoft Windows XP Environment Test	123
AppC. Online Support Information	131

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