Okay i need your help. Suddenly my pc has startet to just freeze, displaying black on the screen and making a high pitched screeching sound! it happens randomly, thou it seems to happen when i try to open a program! the color of the screen varies, mostly black but it was red once and yellowish another time. the crashing varies from time to time. sometimes it can run for hour and hours, and sometimes it simply takes 2 mins, or just entering windows! 1 time was on youtube, and during the screeching crash, the audio from the clip still playe, alongside the MB sound. i´ve tried to put the Ram blocks in all positions available. so take one out, try that in both places etc. and nothing helps. right now i can only make it into wondows, then it just fucks up it seemed to occur as well when. after i put it together and turned it on, it would crash when i tried to put on the cabinet side! so i think it can either be the ram blocks or some sort of psu shortcut somewhere, maybe a cord or so setting of some static discharge? its an asus striker MB. 2gb corsair ram and the psu is a coolermaster 1000w. please if anyone can help.. please.. frustrating -.- thanks oh yeah its been working perfectly for over a year and a half. no changes whatsoever..
Try benchmarking your harddrive using HD Tune for any dodgy read speeds. Also run memtest86 for memory issues, you could also run prime95 for stability issues. It could well be graphics card issues as well so try re-seating the graphics card also un-installing and re-installing the graphics card drivers. From what you've said I leaning toward graphics card as being the culprit. let us know how it goes.