Asus A7M266-D User Manual download pdf (Page 55)

ASUS A7M266-D User’s Manual 55

4. BIOS SETUP

Advanced Menu

System Performance [Normal Mode]

The default setting, [Normal Mode], seeks to balance optimal performance

with system stability. To optimize the performance of motherboard circuits

and the CPU, changing the setting to [Turbo Mode] tells the clock generator

to increase the frequency to the DDR RAM memory system. Configuration

options: [Normal Mode] [Turbo Mode]

Spread Spectrum Control [Enabled]

Leave on default setting. Spread spectrum typically reduces system electro-

magnetic interference (EMI) by 8dB to 10dB.

CPU Level 1 Cache, CPU Level 2 Cache [Enabled]

These fields allow you to choose from the default of [Enabled] or choose

[Disabled] to turn on or off the CPU’s Level 1 and Level 2 built-in cache.

Configuration options: [Disabled] [Enabled]

BIOS Update [Enabled]

This functions as an update loader integrated into the BIOS to supply the

processor with the required data. In the default position of [Enabled], the

BIOS will load the update on all processors during system bootup. Configu-

ration options: [Disabled] [Enabled]

PS/2 Mouse Function Control [Auto]

The default of [Auto] allows the system to detect a PS/2 mouse on startup.

If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved

for expansion cards only if a PS/2 mouse is not detected. [Enabled] will

always reserve IRQ12, whether on startup a PS/2 mouse is detected or not.

Configuration options: [Enabled] [Auto]

OS/2 Onboard Memory > 64M [Disabled]

When using OS/2 operating systems with installed DRAM of greater than

64MB, you need to set this option to [Enabled]; otherwise, leave this on

[Disabled]. Configuration options: [Disabled] [Enabled]

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Asus A7M266-D User Manual Page 55