Intel PT-6IBT User Manual page 45

440BX/ZX AT
Video RAM Cacheable: ( default setting : "Disabled" )
Select Enabled allows caching of the video RAM , resulting in better system
performance. However, if any program writes to this memory area, a system error
may result.
8 Bit I/O Recovery Time:
The recovery time is the length of time, measured in CPU clocks, which the system
will delay after the completion of an input/output request. This delay takes place
because the CPU is operating so much faster than the input/output bus that the CPU
must be delayed to allow for the completion of the I/O.
This item allows you to determine the recovery time allowed for 8 bit I/O.
Choices are from NA, 1 to 8 CPU clocks.
16 Bit I/O Recovery Time: ( default setting : "1" )
This item allows you to determine the recovery time allowed for 16 bit I/O. Choices
are from NA, 1 to 4 CPU clocks.
Memory Hole at 15M-16M : ( default setting : "Disabled" )
Some specific add-on cards may require a 1MB address space between 15MB and
16MB area. Please refer to the user's manual of your add-on card carefully to see
whether you will have to enable this field or not when you are installing a add-on
card to the system..
Memory Hole at 15M-16M : ( default setting: "Disabled" )
In order to improve performance, certain space in memory can be reserved for ISA
cards. This memory must be mapped into the memory space below 16 MB.
Passive Release: ( default setting: "Enabled" )
When Enabled, CPU to PCI bus accesses are allowed during passive release.
Otherwise, the arbiter only accepts another PCI master access to local DRAM.
The Choice: Enabled, Disabled
MAINBOARD
Enabled Video BIOS access cached
Disabled Video BIOS access not cached
( default setting : "1" )
Enabled Memory hole supported.
Disabled Memory hole not supported.
AWARD BIOS SETUP
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