Hi! I have a system with msi 760 gm-e51 mobo and with sata2 and sata3 hdd. Yesterday when i opened my pc the mobo beeped only after 1 min and when i was in win i noticed that teh sata 3 is not visible anymore. The sata3 is a Seagate 7200 at 500 gb. It does not shown in bios either, i tried to set bios to fail safe or optimal, but same issue. After i noticed that my dvd rom does not works either.Its there, starting,but does not load any discs. Any suggestions?