Intel I815E Video Bios Cacheable, CPU Latency Timer, Delayed Transaction, AGP Aperture Size

BIOS SETUP

Video BIOS Cacheable

The Setting 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.

CPU Latency Timer

The default setting for the CPU Latency Timer is Enabled.

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.

AGP Aperture Size

The field sets aperture size of the graphics. 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. The default setting is 64M.

System Memory Frequency

This field sets the frequency of the memory installed in the board. The default setting is 100MHz.

On-Chip Video Window Size

The setting choices for the On-Chip Video Window Size are 64MB and 32MB. By default, this option is set to 64MB.

I815E User’s Manual 35