4. BIOS SETUP

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 electromagnetic 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. Configuration 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]

4. BIOS SETUP

Advanced Menu

ASUS A7M266-D User’s Manual

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