if i understood well what you said, the gpu runs at a different profile before the reboot of the system...but, when i install the drivers i dont uninstall them first, i just run the installation again...isn t the gpu running the same profile? also,from EVGA's precision i can see that the core,shader,memory etc reach their top frequencies (ie 633 MHz for the core) when i play a game... and how do you suggest i check if it s a psu issue? unplug a hard drive or the dvd-rw?
ps. excuse me for my english they re not my native language