so i am overclocking my amd hd radeon 7770 oc edition. i have the settings at 1080/1250 fan at 60 percent. the power control was at 0 when i was testing stability. after an hour or so of gaming the amd driver would crash. so i set the power control at 5 percent. thn it would hardly crash after hours of gaming. so i set it at 10 so no more crashing. my question is will this lessen my gpu lifespa? my max degrees is still 35 at gaming. buti ehard setting voltage ahrms the gpu and kills it so is this also with the power control settings ffrom amd overdrive?