You might be getting a bad BIOS or a dying CMOS battery...a BIOS flash might solve this
I personally think it's a PSU issue here...you have an Ultra PSU which is already bad quality and suffers from added resistance of being modular...add that to the fact you're running a GTX and trying to overclock it's not a good combination...best bet would be to bust out a multimeter and test under load...if they exceed +/-5% they're in bad shape
Might also be not enough amps coming off your 12v rail...I'm not really familiar with Ultra specs
I personally think it's a PSU issue here...you have an Ultra PSU which is already bad quality and suffers from added resistance of being modular...add that to the fact you're running a GTX and trying to overclock it's not a good combination...best bet would be to bust out a multimeter and test under load...if they exceed +/-5% they're in bad shape
Might also be not enough amps coming off your 12v rail...I'm not really familiar with Ultra specs
now THATS a rare commentNubius, do you work for tech forums or are you just incredibly helpful and all over the place?