Help me find my PCB number

[0zzie]

Hey there,
I have an ASUS A7A266 MOBO and know that upgrading my CPU depends on which PCB I have - but where is this PCB number recorded???? - I cannot see it silkscreened anywhere (and my MOBO came in a PC not a box).
Thanks

 

[endyen]

Look between the PCI slots ,rigft after the board name. If there is no rev. then its a 1.

 

[0zzie]

Ill try that when i get home
Thanks