I haven't tried it in another PC. I don't think it's the SSD problem anymore. Everytime I turn off PSU, wait for mobo light to go off, and turn PSU back on, the error doesn't show up anymore. Gunna try switching the SATA cable. Haven't had the PSU for too long (less than a year), don't think Corsair would die so fast...at least I hope not, haha! Unless I happen to have the unlikely defective one.