between the CAS and RAS strobe signals, used when DRAM is written to, read from, or
refreshed. Fast gives faster performance. This field applies only when synchronous
DRAM is installed in the system.
DRAM RAS# Precharge Time:
If an insufficient number of cycles is
allowed for the 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.
System BIOS Cacheable :
Selecting “Enabled” allows caching of the system
BIOS ROM at F0000h – FFFFFh, resulting in better system performance. However, if
any program writes to this memory area, a system error may result. The settings are
“Enabled” and “Disabled”.
Video BIOS Cacheable:
Selecting Enabled allows caching of the video BIOS
ROM at C0000h to C7FFFh, resulting in better video performance. However, if any
program writes to this memory area, a system error may result.
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 usually discusses their
memory requirements.
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
