BIOS SETUP
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DRAM Clock
Set the clock frequency of the DRAMs. The default value is “Host Clock”. You can select
“HCLK+33M” if your DRAM modules are faster than your CPU (Eg. a 66MHz FSB CPU with
PC100 SDRAM, or a 100MHz FSB CPU with PC133 SDRAM); or select “HCLK-33M” for a
faster CPU with slower SDRAMs.
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Memory Hole At 15M-16M
Enabling this feature reserves memory from 15MB to 16MB for ISA expansion cards that
specifically require this setting. This makes the memory from 15MB and up unavailable to
the system. Expansion card only access memory up to 16MB. The default is “Disabled” in
case the memory size may be reduced to 15MB for some Operation Systems.
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Read Around Write
DRAM optimization feature: If a memory read is addressed to a location whose latest write
is being held in a buffer before being written to memory, the read is satisfied through the
buffer contents, and the read is not sent to the DRAM. The choices: “Enabled” and “Disabled”.
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Concurrent PCI/Host
When “Disabled”, the CPU bus will be occupied during the entire PCI operation period.
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System BIOS Cacheable
Selecting Enabled allows caching of the System BIOS, resulting in better system performance.
However, if any program writes to this memory area, a system error may occurr.
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Video RAM Cacheable
Selecting “Enabled” allows caching of the video RAM , resulting in better system
performance.
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AGP Aperture Size (MB)
Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a portion
of the PCI memory address range dedicated to graphics memory address space. Memory
map and graphics data structures can reside in a Graphic Aperture .Host cycles that hit the
aperture range are forwarded to the AGP without any translation. See http://
www.agpforum.org/ for AGP information.
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AGP-2X Mode
Select “Enabled” to support AGP-2X (clock=133MHz) mode.
Summary of Contents for TS-AVD3
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