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ASUS P/I-XP6NP5 User's Manual38
(Chipset Features)
IV. BIOS SOFTWARE
IV. BIOS
(Chipset Features)
Read-Around-Write
The default setting of Enabled will increase the execution efficiency of the proces-
sor. It allows the processor to execute read commands out of order if there is no
dependence between these read and other write commands.
16-bit I/O Recovery Time
Timing for 16-bit ISA cards (leave on default setting of 1 BUSCLK)
8-bit I/O Recovery Time
Timing for 8-bit ISA cards (leave on default setting of 1 BUSCLK)
Video Memory Cache Mode
USWC (uncacheable, speculative write combining) is a new cache technology for
the video memory of the Pentium Pro processor. It can greatly improve the display
speed by caching the display data. You must leave this on the default setting of UC
(uncacheable) if your display card cannot support this feature or else your system
may not boot.
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 Data Integrity will not show memory errors on your
monitor. When using parity DRAM modules, you can select ECC (Error Checking
and Correcting) to correct 1 bit memory errors that may occur in the memory, other-
wise Parity is the default. (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.