The real problem with this is that EVGA is shipping out new pcb revisions with old part numbers, so even if you order one of the 128X part numbers you could get a 118x revision pcb.

I don't post here much so I'm not sure of the rules about posting links to other forums, but I did start a thread about it at evga and they ended up taking care of me so I have two matching cards now:

http://www.evga.com/forums/tm.asp?m=100651290