I'm also convinced that Fermi graphics card is fake. I found this pic of PCI Express connector from Chinese website PCpop.com and it says: ""180-11072-1102-A00" (link)

I checked some previous PCB codes:

GeForce GTX 295: 180-10656-0102-B01
GeForce GTX 285: 180-10891-0102-A01
GeForce GTX 9800 GX2: 180-10790-0102-A02

saaya, do you have more detailed info about these codes?