From: bafenator on

If I try to install Windows XP on my AB9 Pro with AHCI enabled, it
cannot find my sata hard drives - no matter which driver disk I use.
If I install *then* enable AHCI, XP won't boot. If I leave AHCI
disabled, my optical drive's performance sucks.

Any tips on which driver disk to use, or which magic incantations to
recite in order to get XP to install on this board with AHCI enabled?