Manual

ASUS P4T-EM User’s Manual 57

4. BIOS SETUP

Advanced Menu

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. Con-

figuration 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 re-

served 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]

USB Legacy Support [Auto]

This motherboard supports Universal Serial Bus (USB) devices. The de-

fault of [Auto] allows the system to detect a USB device on startup. If

detected, USB controller legacy mode will be enabled. If not detected, USB

controller legacy mode will be disabled. When this field is set to [Dis-

abled], USB controller legacy mode is disabled no matter whether you are

using a USB device or not. Configuration options: [Disabled] [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]