User`s manual

VIA KT133 ATX MAINBOARD AWARD BIOS
4-11
Video RAM Cacheable
Select Enabled allows caching of the video RAM , resulting in better system
performance. However, if any program writes to this memory area, a system error
may result.
AGP Aperture Size
Select the size of Accelerated Graphics Port (AGP) aperture. The aperture is a
portion of the PCI memory address range dedicated for graphics memory address
space. Host cycles that hit the aperture range are forwarded to the AGP without
any translation.
AGP- 4X Mode
This item allows you to enable / disable the AGP-4X Mode. Please make sure
your AGP card supports the 4X AGP display mode before you can select Enable.
AGP Driving Control
This item allows you to adjust the AGP driving force. Choose Manual to key in a
AGP Driving Value in the next selection. Basically, "Auto" is recommended to
avoiding any error in your system.
AGP Driving Value
This item allows you to adjust the AGP driving force.
AGP Fast Write
When Enabled, writes to the AGP(Accelerated Graphics Port) are executed with
fast writing mode.
K7 CLK_CTL Select
This field is used to specify the clock control for ramp rate. The choice selectable
in this field will be Default and Optimal. The selection in the field is highly
depend on the CPU ratio.
OnChip USB
This should be enabled if your system has a USB installed on the system board
and you want to use it. Even when so equipped, if you add a higher performance
controller, you will need to disable this feature.
USB Keyboard Support
Select Enabled if your system contains a Universal Serial Bus (USB) controller
and you have a USB keyboard.
OnChip Sound