Biostar 865G Micro 775 Bios Setup Manual page 17

Biostar 865g micro 775 motherboard: supplementary guide
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865G Micro 775
DRAM RAS# to CAS# Delay
This field let you insert a timing delay between the CAS and RAS strobe signals, used
when DRAM is written to, read from, or refreshed. Fast gives faster performance; and slow
gives more stable performance. This field applies only when synchronous DRAM is
installed in the system.
The Choices: 4 (default), 3, 2.
DRAM RAS# Precharge
If an insufficient number of cycle is allowed for RAS to accumulate its charge before
DRAM refresh, the refresh may be incomplete, and the DRAM may fail to retain data. Fast
gives faster performance; and Slow gives more stable performance. This field applies only
when synchronous DRAM is installed in the system.
The Choices: 4 (default), 3, 2.
Memory Frequency For
This item allows you to select the Memory Frequency.
The Choices: Auto (default), DDR266, DDR300, DDR320, DDR400.
System BIOS Cacheable
Selecting Enabled allows you caching of the system BIOS ROM at F0000h~FFFFFh,
resulting a better system performance. However, if any program writes to this memory area,
a system error may result.
The Choices: Enabled (default), Disabled.
Video BIOS Cacheable
Select Enabled allows caching of the video BIOS, resulting a better system performance.
However, if any program writes to this memory area, a system error may result.
The Choices: Disabled (default).d, Enabled
Memory Hole At 15M-16M
You can reserve this area of system memory for ISA adapter ROM. When this area is
reserved it cannot be cached. The user information of peripherals that need to use this area
of system memory usually2 discussed their memory requirements.
The Choices: Disabled (default), Enabled.
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 for graphics memory address space. Host
cycles that hit the aperture range are forwarded to the AGP without any translation.
The Choices: 64, 4, 8, 16, 32, 128 (default), 256.
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