AMPTRON 3IBAT, User Manual

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3IBAT User’s Manual
Cache Features
System BIOS Cacheable
Select Enabled allows caching of the system BIOS ROM at F000h-FFFFFh,
resulting in better system performance. However, if any program writes to
this memory area, a system error may result.
Enabled BIOS access cached
Disabled BIOS access not cached
Video BIOS Cacheable
Select Enabled allows caching of the video BIOS ROM at C0000h-F7FFFh,
resulting in better video performance. However, if any program writes to this
memory area, a system error may result
Enabled Video BIOS access cached
Disabled Video BIOS access not cached
Video RAM Cacheable
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.
Enabled Video RAM access cached
Disabled Video RAM access not cached
PCI and IDE Configuration
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 de-
lay 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
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
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.