Hi I would like to ask cause ive never experienced this problem before. My OS suddenly freezes randomly like while I am browsing or watching a movie it just hangs, the type of Hang that I experience in browser is the screen suddenly freeze but i can move my mouse and the page wont load, I cant also click the start button or anything in movies it just rewinds the sound and the screen freeze I am using a i5 4590, Gigabyte Z97 HD3, 2x4 hyperx fury 1866hz, samsung ssd 840 evo and a generic powersupply 650 watts. Is the powersupply causing this problem? cause my mobo has a 8 pin slot and this powersupply only got 4 pin? or is there any compatibility issue with the memory?