where can i find to set the performance level in bios? i couldnt find it in bios..mine is set at 15..wanna set it at 10. but couldnt find it..my mobo is ep45-ud3r

im using ep45 ud3r, q6600, mushkin pc6400, gtx275, odin pro 550w.

last nite, theres a lil bit of short circuit. then my pc went blank and ownt start.. its like this, switch on, the psu run, and all fans will work, but no display. and after around 20-30 seconds, it will auto shut, and auto start again.. all fan will keep working yet no display at all.. i suspect its the psu..

Btw, gigagyte have 3 years warranty rite? how long will RMA takes?
ive posted this in technical support, pending for reply.

tq all

tq for the reply..yes, i did OC my rig.. now i can boot, but my ram slot 1 and 3 is faulty, other than that seems alrite..should i send for RMA? the age of item is less than a year, can get 1 to 1 exchange rite?