HP dc5800 enable AHCI mode

[duvelhedz]

HP dc5800 Minitower

Been tearing my hair out here trying to hack this together and coming up against a brick wall.

BIOS is currently set in IDE mode (8086,2921)

I would like to enable AHCI mode (8086,2922)

From what I understand, This machine uses an ICH9 / Q33 chipset.

I have looked around the raw bios image for these values but can't understand where to make the required modification.

Below is a link to the BIOS i want to mod.

ftp://ftp.hp.com/%2F/pub/softpaq/sp73501-74000/sp73863.exe

[POPKAPOPI2222]

Please anyone integrate ahci support to hp dc5800 sff bios
bios in attachments