Asus A7VL-VM - Manual (Page 52)

ASUS A7VL-VM User’s Manual 52
4. BIOS SETUP
4. BIOS SETUP
Advanced Menu
DRAM Frequency
This field determines whether the memory clock frequency is set to be in synchro-
nous or asynchronous mode with respect to the CPU Frequency. This must be set
in conjunction with CPU (external) Frequency to match the speed of your SDRAM.
When you press on this field, the first available option in the pop-up menu
equals the CPU Frequency you select for the previous field, and the second avail-
able option is the CPU Frequency multiplied by 4/3. To maintain and ensure system
stability, DRAM Frequency is set to [100 MHz] when the BIOS setup default set-
tings are loaded/selected.
System Performance [Normal]
This field adjusts the overall system performance of data processing. The start-up
setting is [Normal]. It may be changed to [Optimal] if the user needs to increase the
efficiency of data cache processes and throughputs in the system controller. Con-
figuration options: [Normal] [Optimal]
CPU Level 1 Cache, CPU Level 2 Cache [Enabled]
These field lets you 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]
CPU Level 2 Cache ECC Check [Disabled]
This function controls the ECC capability in the CPU level 2 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 de-
tected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved for expan-
sion 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: [En-
abled] [Auto]
USB Legacy Support [Auto]
This motherboard supports Universal Serial Bus (USB) devices. The default of [Auto]
allows the system to detect a USB device on startup. If detected, the USB controller
will be enabled. If not detected, the USB controller will be disabled. When this field
is set to [Disabled], the USB controller is disabled no matter whether you are using
a USB device or not. Configuration options: [Disabled] [Enabled] [Auto]