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ASUS CUSI-FX User’s Manual58
4. BIOS SETUP
4. BIOS SETUP
Chip Configuration
Refresh RAS Assertion [5T]
Configuration options: [6T] [7T] [5T] [4T]
Refresh Queue Depth [12]
Configuration options: [0] [4] [8] [12]
SDRAM Refresh Mode [Staggered 1T]
Configuration options: [Simultaneous] [Staggered 1T]
Memory Hole At Address [None]
This field allows you to reserve an address space for ISA devices that re-
quire it. Configuration options: [None] [15M-16M] [14M-16M] [12M-16M]
Video Memory Cache Mode [USWC]
USWC (uncacheable, speculative write combining) is a 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 cannot support this feature; otherwise your system may
not boot. Configuration options: [UC] [USWC]
Graphics Aperture Size [64MB]
This feature allows you to select the size of mapped memory for AGP graphic
data. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB]
[128MB] [256MB]
VGA Shared Memory [16MB]
This feature allows you to select the size of system memory to allocate for
video memory. Configuration options: [2MB] [4MB] [8MB] [16MB]
[32MB] [64MB]
PCI 2.1 Support [Enabled]
This function allows you to enable or disable PCI 2.1 features including
passive release and delayed transaction. Configuration options: [Disabled]
[Enabled]
ISA Bus Clock [PCICLK/4]
This function allows you to set the ISA bus clock frequency. [PCICLK/4]
sets your ISA bus at a quarter speed of the PCI bus. Configuration options:
[PCICLK/4] [7.159MHz]
Onboard PCI IDE Enable [Both]
You can select to enable the primary IDE channel, secondary IDE channel,
both, or disable both channels. Configuration options: [Both] [Primary] [Sec-
ondary] [Disabled]