I cannot get even a very low OC out of this at the moment, i.e. even 10x205 is not stable. Memtest runs fine (will run OK at a considerably higher OC), but 3DMark05 (and EQ2, so it's not just a benchmark problem) gives a BSOD (usually early on in Test 4) with the message BUGCODE_USB_ERROR.
I am not the only one to experience this, I've come across three others with the same problem on different setups.
Changing BIOS versions, voltages, etc. has no effect on this.
Specs: Winnie 3200+/Enermax 480/XFX 6800GT/Crucial Ballistix 2x512/SB Audigy 2/Diamondmax 10 250Gb