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Chapter 4: BIOS Setup
Chipset Clock Mode [Synchronous]
When set to [Synchronous], AGP/PCI frequency is coordinated with the
CPU frequency. When set to [Asynchronous], AGP/PCI frequency is not
adjusted according to the CPU frequency. When set to [Performance] the
AGP/PCI frequency is set to a higher value. Configuration options:
[Synchronous] [Asynchronous] [Performance]
SDRAM Command Lead-off Time [Auto]
When set to [2T], memory read/write commands are issued 1 clock cycle
behind the memory address (MA). When set to [1T], read/write
commands and MA are issued simultaneously. Configuration options: [2T]
[1T] [Auto]
Graphics Aperture Size [64MB]
This feature sets the size of mapped memory for AGP graphic data.
Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB]
[256MB]
AGP Capability [8X Mode]
This motherboard supports the AGP 8X / 4X interfaces. When a 4X card
is inserted, the default is [4X Mode]. When an 8X card is inserted, the
default is [8X Mode]. AGP 8x and 4X are backward-compatible, so you
may keep the default [4X Mode] even if you are using an AGP 1X or 2X
video card. When set to [1X Mode], the AGP interface only provides a
peak data throughput of 266MB/s even if you are using an AGP 2X/4X
card. When set to [2X Mode], the AGP interface provides a peak data
trhoughput of only 533MB/s even if you are using an AGP 4X card.
Configuration options: [1X Mode] [2X Mode] [4X Mode] [8X Mode]
AGP Fast Write Capability [Enabled]
Configuration options: [Disabled] [Enabled]
Video Memory Cache Mode [UC]
USWC (uncacheable, speculative write combining) is a new cache
technology for the video memory of the processor. It can greatly improve
the display speed by caching the display data. You must set this to UC
(uncacheable) if your display card does not support this feature, otherwise
the system may not boot. Configuration options: [UC] [USWC]