Asus P4PE User Manual page 83

CPU VCore [1.500V]
When the CPU VCore Setting parameter above is set to [Manual], the
CPU VCore item allows you to select a specific CPU core voltage. This
field is not accessible when the CPU VCore Setting is set to [Auto].
Refer to the CPU documentation before setting this field. A very high
core voltage may severely damage the CPU!
DDR Reference Voltage [Auto]
This item controls the DDR SDRAM operating voltage. Configuration
options: [2.9V] [2.7V] [2.6V] [Auto]
AGP VDDQ Voltage [Auto]
This item controls the AGP operating voltage. Configuration options: [1.7V]
[1.6V] [1.5V] [Auto]
CPU Level 1 Cache, CPU Level 2 Cache [Enabled]
These fields allow you to choose from the default [Enabled] or choose
[Disabled] to turn on or off the CPU Level 1 and Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]
BIOS Update [Enabled]
This field functions as an update loader integrated into the BIOS to supply
the processor with the required data. When set to [Enabled], the BIOS
loads the update on all processors during system bootup. Configuration
options: [Disabled] [Enabled]
PS/2 Mouse Function Control [Auto]
The default setting [Auto] allows the system to detect a PS/2 mouse at
startup. If a mouse is detected, the BIOS assigns IRQ12 to the PS/2
mouse. Otherwise, IRQ12 can be used for expansion cards. When you set
this field to [Enabled], BIOS reserves IRQ12, whether or not a PS/2 mouse
is detected at startup. Configuration options: [Enabled] [Auto]
ASUS P4PE motherboard user guide 4-19