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.

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. The available 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. The available 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.

Enabled Memory hole supported

Disabled Memory hole not supported

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. The available choices are Enabled, Disabled.

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. The available choices are Enabled, Disabled.

AGP Aperture Size (MB):

Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a portion of the PCI memory address range dedicated for graphics memory address space. Host cycles that hit the aperture range are forwarded to the AGP without any translation. See www.agpforum.org for APG information. The available choices are 16 MB, 32 MB, 64 MB, 128 MB, and 256MB.

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