Owner's manual

2-16 Chapter 2: BIOS Information
SDRAM CAS Latency [2.5T(DDR)]
This item controls the latency between the SDRAM read command and the time
the data actually becomes available.
SDRAM RAS to CAS Delay [3T]
This item controls the latency between the DDR SDRAM active command and the
read/write command.
SDRAM RAS Precharge Time [3T]
This item controls the idle clocks after issuing a precharge command to the DDR
SDRAM.
SDRAM Active Time [6T]
This item controls the number of DDR SDRAM clocks used for DDR SDRAM
parameters.
SDRAM Command Lead-off Time
Configuration options: [Auto] [2T] [1T]
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]
AGP Capability [4X Mode]
This motherboard supports the AGP 4X interface that enables enhanced graphics
performance with high bandwidth speeds up to 2.12GB/s. AGP4X is backward-
compatible. When set to [1X Mode], the AGP interface only provides a peak data
throughput of 266MB/s even if you are using an AGP 4X card.
Configuration options: [1X Mode] [2X Mode] [4X Mode]
AGP Fast Drive Capability [Enabled]
This field allows you to enable or disable the AGP fast write capability.
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]
Memory Hole At 15M-16M [Disabled]
This field allows you to reserve an address space for ISA expansion cards. Setting
the address space to a particular setting makes that memory space unavailable to
other system components. Expansion cards can only access memory up to 16MB.
Configuration options: [Disabled] [Enabled]