How do i know what revision i have?

yeah, dumb question but i dont see it anywhere when i boot =/

If you cant find it on the board next to the model # down load wcpuid or sandrasoft or 3DMark2003 .

Hi dmginc34-
On your A7N8X its between the 2nd and 3rd PCI slot going down from AGP slot, right after it says ASUS A7N8X the writing's really small so you need to look closely. Also, Bill's suggestion is a good one as I expect you'll want these programs at some point anyway, if you havn't got 'em already.
Good Luck
elec.tron