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IV. BIOS SOFTWARE
Video BIOS Cacheable (Enabled)
Allows the Video BIOS to be cached to allow faster execution. Leave on default
setting of Enabled for better performance, otherwise Disabled.
Memory Hole at 15M - 16M
Enabling this features reserves 15MB to 16MB memory address space to ISA ex-
pansion cards that specifically require this setting. This makes the memory from
15MB and up unavailable to the system. Expansion cards can only access memory
up to 16MB. The default is Disabled.
[DRAM and ECC]
If all your DRAM modules have parity chips (e.g. 8 chips + 4 parity chips), they are
considered 36bits. This motherboard sums the memory per bank and therefore two
modules will give 72bits and the following will be displayed:
If your DRAM modules do not have parity chips (e.g. 8 chips), they are considered
32bits and the following will be displayed instead:
The default of Disabled for Memory parity SERR# (NMI) will not show memory
errors on your monitor. When using parity DRAM modules, you can select from the
default of Parity or ECC (Error Checking and Correcting) to correct 1 bit memory
errors that may occur in the memory. (See pages 12-13 for more information on
DRAM memory modules.)
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Onboard FDC Controller (Enabled)
When enabled, this field allows you to connect your floppy disk drives to the on-
board floppy drive connector instead of a separate controller card. If you want to
use a different controller card to connect the floppy drives, set this field to Disabled.
Onboard FDC Swap A & B (No Swap)
This field reverses the drive letter assignments of your floppy disk drives. Two
options are available: No Swap and Swap AB. If you want to switch drive letter
assignments, set this field to Swap AB, and the swap will be controlled in hardware.
This works separately from the BIOS Features floppy disk swap feature. It is func-
tionally the same as physically interchanging the connectors of the floppy disk drives.
ASUS HX97 User's Manual
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