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Fsb frequency [xxx, Configure dram timing by spd [enabled, Cpu vcore over-voltage [auto – Asus P5QL-VM DO User Manual

Page 34: Fsb termination voltage [auto, Dram voltage [auto, Dram frequency [auto

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Chapter 2: BIOS information

2-7

Front Side Bus

CPU External Frequency

FSB 1600

400 MHz

FSB 1333

333 MHz

FSB 1066

266 MHz

FSB 800

200 MHz

FSB Frequency [XXX]

Displays the frequency sent by the clock generator to the system bus and PCI bus. The value

of this item is auto-detected by the BIOS. Input the desired CPU frequency using the numeric

keypad. The values range from 200 to 800. Refer to the table below for the correct Front Side

Bus and CPU External Frequency settings.

FSB/CPU External Frequency Synchronization

Selecting a very high DRAM frequency may cause the system to become unstable! If this

happens, revert to the default setting.

The DRAM Frequency configuration options vary with the FSB Frequency item settings.

Configure DRAM Timing by SPD [Enabled]

Allows you to set the DRAM timing control. Configuration options: [Enabled] [Disabled]

CPU VCORE Over-Voltage [Auto]

Allows you to set the CPU VCore over-voltage. Configuration options: [Auto] [+50mv]

[+100mv] [+150mv].

Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high

VCore voltage may damage the CPU permanently, and setting a low VCore voltage may

make the system unstable.

FSB Termination Voltage [Auto]

Allows you to set the front side bus termination voltage. The values range from 1.20V to

1.30V with a 0.10V interval. Press +/- to adjust the value.

DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.87V to 2.26V with a 0.13V

interval. Press +/- to adjust the value.

The following two items appear only when you set the Ai Overclock Tuner item to

[Manual].

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.

Configuration options: [Auto] [DDR2-533 MHz] [DDR2-639 MHz] [DDR2-667 MHz] [DDR2-

800 MHz]