Black screen help!and psu guidance

eladrion

Reputable
May 1, 2014
52
0
4,640
Hello people 1,5 month now i have build a new pc and cant fix my problem...my pc browse ok you see movies you play games on medium graphics when i put ultra my pc get black screen but it still working and i hard reset it to go...i have tried all differend drivers bios updates and nothing...i left it on a technician and runned one light gpu test that in the whole test i have over 1000fps and gpu run it 15 hours straight so i thought it fixed but when came home and stressed gpu it shutted again....I have been thinking 2 scenarios gpu is fault and crash only on high pressure Or Psu cant give the approprate voltage....i have connect it with one cable that split in an 8pin and 6 pin to the gpu...the card had a weird yellow cable adaptor but didnt attached it ...maybe is a must???

My rig is: asus gtx 770 du2oc

Asus p9x79
8gb kingston hyperx
Psu:thermaltake toughpower gold 750w
Cpu:i7 4820k
And 6 case fans on

Help please!!!! BTW pc worked with gtx 760 on...but that doesnt clear anything because it need significant less power than gtx 770 so its again psu vs gpu