Biostar P4SFA Bios Setup Manual page 15

P4SFA BIOS Setup
RAS Active Time (tRAS)
This items allows you to specify the minimum bank active time.
The Choices: 6T (default), 5T.
RAS to CAS Delay (tRCD)
Use this item to specify the delay from the activation of a bank to the time that a
read or write command is accepted.
The Choices: 2T, 3T (default).
CAS Latency Setting
When synchronous DRAM is installed, the number of clock cycles of CAS
latency depends on the DRAM timing.
The Choices: By SPD (default), 2T, 2.5T, 3T.
DRAM Addr/ Cmd Rate
The Choices: Auto (default), 1T, 2T.
Prefetch Caching
This item allows you enable/disable Prefetch Caching.
The Choices: Enabled, Disabled (default).
Memory Hole at 15M-16M
When enabled, you can reserve an area of system memory for ISA adapter ROM. When
this area is reserved , it cannot be cached. Refer to the user documentation of the peripheral
you are installing for more information.
The Choices: Disabled (default), Enabled.
AGP Aperture Size
Select the size of the 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.
The Choices: 4M, 8M,16M, 32M, 64M (default), 128M, 256M.
Graphic Window WR Combin
This item allows you enable/disable Graphic Window write-combine.
The Choices: Enabled, Disabled (default).
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