it must be PCB its the upgrades that comes on same board.
let me know 2 thinsg:
exact model of your board? as A7N8X has 4 models
PCB version, u can find it on:
if u open the Casing, in between PCI slots, whre its written A7N8X, you'll fine near it, written PCB cersion, tell em that, and i'll tell u wht to download.
and I am on Asus as well, I know all their stuff, i have used A7N8X as well, thanks anyway for writing the download site of asus.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"