BIOS SETUP
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each section of memory separately. Many system designers hardwire shadowing of the sys-
tem BIOS and eliminate a System BIOS Shadow option. Video BIOS shadows into memory
area C0000-C7FFF. The remaining areas shown on the “BIOS Features Setup” screen may
be occupied by other expansion card firmware. If an expansion peripheral in your system
contains ROM-based firmware, you need to know the address range the ROM occupies to
shadow it into the correct area of RAM.
3.5 Chipset Features Setup
This option will change the values of the chipset registers and the system setting will alter. Do
not change any values if you are not familiar with the chipset.
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Auto Configuration
Auto configuration selects predetermined optimal values of chipset parameters. When this
function is disabled, chipset parameters revert to setup information stored in CMOS. Many
fields in this screen are not available when Auto Configuration is enabled.
•
EDO DRAM Speed Selection
The value in this field depends on performance parameters of the installed EDO memory
chips (DRAM). Do not change the value from the factory setting unless you install new memory
that has a different performance rating than the original DRAMs.
•
EDO CASx# MA Wait State / EDO RASx# MA Wait State
Because the normal DRAM access speed is lower, CPU must wait for DRAM, this function
could set up DRAM Memory Access wait state.
