Ok it says under the AGP slot thing in the manual
The AGP slot is for the exclusive use of high speed APG video display cards. This AGP slot supports AGP4X cards this slot only supports 1.5V devices. do not use a 3.3V with this motherboard
so does this mean i can use 8X aswell? because something said it was backwards compatible and apparently 8X cards are 0.8V and this is 1.5V drive