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Acer Aspire T650 Aspire T650/E500 and Power F5 Service Guide - Page 56

Frequency Control, Auto Detect PCI Clk

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Frequency Control This page helps you to set up the frequency control of the motherboard. CMOS Setup Utility - Copyright (C) 1985-2004, American Megatrends, Inc. Frequency Control Ratio Status: Unlocked (Max: 16, Min:14) Ratio Actual Value: 16 Auto Detect PCI Clk [Enabled] Spread Spectrum [Enabled] Help Item Options Disabled Enabled mnlk :Move Enter : Select +/-/: Value F10: Save ESC: Exit F1: General help F9: Load Default Settings Parameter Ratio Status Ratio Actual Value Auto Detect PCI Clk Spread Spectrum Description You can only adjust the Ratio CMOS if you installed an unlocked CPU. This item indicates the ratio actual value of this motherboard When this item is enabled, BIOS will disable the clock signal of free PCI slots If you enable spread spectrum, ite can significantly reduce the EMI(ElectroMagnetic Interference) generated by the system. 50 Chapter 2

Section	Page
COVER	1
Revision History	2
Copyright	3
Disclaimer	3
Conventions	4
Preface	5
T.O.C	6
CH1 System Specifications	8
Overview	8
Features	11
Block Diagram	14
MainBoard Placement	15
Rear I/O Port	17
Jumper and Connector Setting	18
Jumper Setting	18
Connector Information	19
Aspire T650 Front Panel	24
Aspire E500 Front Panel	25
AcerPower F5 Front Panel	26
Aspire T650/E500, AcerPower F5 Rear Panel	27
System Peripherals	28
Mouse (PS/2 or USB, manufacturing option)	28
Keyboard (PS/2 or USB, manufacturing option)	28
Speakers	29
Acer eRecovery	30
Create backup	30
Restore from backup	30
Create factory default image CD	30
Re-install bundled software without CD	31
Change Password	31
Acer disc-to-disc recovery	32
Restore without a Recovery CD	32
Multilingual operating system installation	32
Hardware Specifications and Configurations	33
Power Management Function (ACPI support function)	40
CH2 System Utilities	41
Entering Setup	42
Product Information	43
Standard CMOS Features	44
Primary IDE Master	46
Advanced BIOS Features	47
Advanced Chipset Features	49
Integrated Peripherals	50
Power Management Setup	52
PnP/PCI Configuration	54
PC Health Status	55
Frequency Control	56
Load Default Settings	57
Set Supervisor/User Password	58
Save & Exit Setup	59
Exit Without Saving	60
CH3 Machine Disassembly and Replacement	61
General Information	62
Before You Begin	62
Disassembly Procedure	63
Aspire T650 Standard Disassembly Procedure	64
Aspire T650 Standard Reassembly Procedure	72
Aspire E500 Standard Disassembly Procedure	81
Aspire E500 Standard Reassembly Procedure	89
AcerPower F5 Standard Disassembly Procedure	98
AcerPower F5 Standard Reassembly Procedure	106
CH4 FRU (Field Replaceable Unit) List	115
Aspire E500/T650 Exploded Diagram	116

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