First of all, hi all i'm norris and i'm new here. Since a few weeks i got a very annoying problem. My system: asrock p67 extreme 4 i5 2500k 8gb ram radeon 6850 c300 64gb ssd samsung 1TB Ok, this system has run without any problem since januari this year. The problem started out of the in august. I came back home to find my system locked up. A reset did the trick. These 'idle' lockups happened a few more times after that. Then i started to have freezes while working on the pc. These are random freezes that happened while i was surfing, gaming or listening to music. When i listen to music for example, the song keeps playing until the end, but everything else where i click hangs up, until the point the pc freezes totaly. I have to reset it but then i won't boot anymore. 'No startup devices found' So i check my bios to find my ssd has vanished. I swicthed to sata cable from the ssd to another port and i could boot normally again. I thought this problem was ssd related so i updated its firmware. Problem stays. When i game, suddenly i'm missing some sounds and after a few seconds everything hangs. => reset=>no boot, ssd missing. Switched to another port again and startup normally. I updated bios firmware a few days ago, but also that didn't helped. Sometimes the system runs fine for a few days, sometimes it hangs multiple times a day. So now i wanted to do a memtest and started to burn a bootable memtest cd. Failed, i can't seem to burn any cd's or dvd's anymore. This seemed to happen after i updated the bios firmware. Now yesterday suddenly my samsung drive went unresponsible too. Reboot, went in bios and found all my drives including cdr missing. Swapped all sata cables => startup normally. So now i think maybe my sata controller is dying?