User’s Manual

3.5.3.3 Bank Interleave

Enables to set the interleave mode of the SDRM interface which allows banks of SDRAM to alternate their refresh and access cycles.

The choices: Disabled, 2 Bank, 4 Bank.

3.5.3.4 Memory Hole

When this item is enabled, ISA ROM will be mapped to 15-16M area and also support legacy ISA devices. While this item is disabled and legacy ISA devices are not utilized, the graphic performance will be enhanced.

The choices: Disabled, 512K-640K, 15M-16M, 14M-16M.

3.5.3.5 P2C/C2P Concurrency

CPU bus will be occupied during the entire PCI operation period when disabled. The choices: Enabled, Disabled.

3.5.3.6 System BIOS Cacheable

This feature is only valid when the system BIOS is shadowed. It enables or disables the caching of the system BIOS ROM at F0000h-FFFFFhvia the L2 cache. This greatly speeds up accesses to the system BIOS. However, this does not translate into better system performance because the OS does not need to access the system BIOS much. The choice: Enabled, Disabled.

3.5.3.7 Video RAM Cacheable

This feature is only valid when the video BIOS is shadowed. It enables or disables the caching of the video BIOS ROM at C0000h-C7FFFhvia the L2 cache. This greatly speeds up accesses to the video BIOS. However, this does not translate into better system performance because the OS bypasses the BIOS using the graphics driver to access the video card's hardware directly.

The choice: Enabled, Disabled.

3.5.3.8 Frame Buffer Size

Select the size of onboard video controller’s frame buffer. The buffer size are share from system memory unit.

The choices: 2MB, 4MB, 8MB, 16MB, 32MB.

3.5.3.9 AGP Aperture Size

Select the size of 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.

The choices: 4MB,8MB,16MB.32MB, 64MB,128MB.

3.5.3.10 AGP-4X Mode

This item allows you to enable / disable the AGP-4X Mode.

The choices: Enabled, Disabled.

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