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BIOS Tuning: Maximum Power

AGP Mode: 4x Faster Than 2x

Huge impact on graphics performance: The AGP mode should always be set to "4x".

The option that controls the transmission rate of the AGP bus is pretty self-explanatory. Logically, "4x" is faster than "2x", even though few applications work by swapping out textures over the AGP bus.

Some boards allow you to change the priority of the PCI bus. The picture shows the BIOS of the latest version of the Asus CUSL2 motherboard.