Asus A7N266-C User Manual page 61

4. BIOS SETUP
CPU/Memory Frequency Ratio [Auto]
This field determines whether the memory clock frequency is set to be in
synchronous or asynchronous mode with respect to the memory frequency.
The options that appear in the popup menu vary according to the status of
the CPU/PCI Frequency (MHz) field. Configuration options: [1:1] [3:4]
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 Level 1 and Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]
CPU Level 2 Cache ECC Check [Enabled]
This function controls the ECC capability in the CPU level 2 cache.
Configuration options: [Disabled] [Enabled]
CPU Fast Decode [Disabled]
This function controls the speed of CPU decode processing. 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 always reserves IRQ12, whether or not a PS/2 mouse is detected at
startup. Configuration options: [Enabled] [Auto]
USB Legacy Keyboard Support [Disabled]
This motherboard supports Universal Serial Bus (USB) devices. The default
of [Disabled] allows the system to detect a USB device at startup. The other
two fields [Primary] and [Secondary] are used for selecting which of two
sets of ports. Users should select [Disabled] or [Primary] to activate a
USB-type keyboard connection to a new system. Configuration options:
[Disabled] [Primary] [Secondary]
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 to the
default setting [Disabled]. Configuration options: [Disabled] [Enabled]
ASUS A7N266-C User's Manual 61