I have modified the whole thing out from motherboard to cpu to ram to power supply and not anything has phased it. In the nut shell there are no any issue but at the time when I reboot my PC they get disappear. Then I have tried once more and reboot it then they reappear or just one reappears. You remain doing it until they together show up again. Then your Operating system is gone although the files are still stay on the drive. And the kicker is it will not permit you to install windows 7 on any drive SSD. You must clear CMOS and stay away from Raid just to obtain it to show up. Corsair yesterday lastly admitted they are seeing "some" harms. I went to their message board and there are a small number of threads running around and it does not relate what the computer is. x55, even laptops are seeing the matter. If you also want to see this then you just go to the newegg and you observe the similar story in the review section. So if you you want my opinion then I will say that you just Stay away from these drives.