57
BIOS SETUP
Select Enabled allows caching of the video BIOS ROM at F0000h-FFFFFh,
resulting in better system performance. However, if any program writes to
this memory area, a system error may result.
5.5.4.
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.
5.5.5.
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.
5.5.6.
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.
5.5.7.
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. You can reserve this area of system memory for ISA adapter ROM.
When that area is reserved it cannot be cached. The user information of
peripherals that need to use this area of system memory usually discusses
their memory requirements.
5.5.8.
Passive Release
When Enabled, CPU to PCI bus accesses are allowed during passive
release. Otherwise, the arbiter only accepts another PCI master access to
local DRAM.
5.5.9.
Delayed Transaction
The chipset has an embedded 32-bit posted write buffer to support delay
transactions cycles. Select Enabled to support compliance with PCI
specification version 2.1.
5.5.10.
AGP Aperture Size (MB)
Summary of Contents for IN440EX-D
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