Some guy on AmdZone actually managed to overclock a SanDiego FX55 to 3.6 Ghz. That's a 1Ghz oc! He used a DFI Lanparty UT nF4 SLI-DR so this should futher promote their ocing prestige as well as AMD's. Check it out
All I know is this: "So what better day to do some overclocking than the 4th of July? I can't think of one. Of course when it is 100 degrees outside you want to cool your CPU down to -40 degrees Celcius with a Prometia Mach II setup."