Common Options : Enabled, Disabled

Details

This feature is only found on motherboards that support AGP4X. However, it's usually Disabled by default because not everyone will be using an AGP4X-capable card with the motherboard. When AGP1X or 2X cards are installed, this BIOS feature needs to be Disabled for the cards to work properly. To prevent complications with uninformed users, most manufacturers simply disable AGP4X mode by default.

However, this means that users of AGP4X cards will lose out on the greater bandwidth available through the AGP4X transfer mode. While AGP4X's actual performance boost over AGP2X isn't really earth shattering, it would still be foolish of us not to use the mode when it's available.

So, if you own an AGP4X-capable card, it's recommended that you enable AGP4X mode for better AGP performance. Leave it as disabled only if you have a graphics card that only supports AGP1X or AGP2X transfer modes.