" I'm wondering whether i'm covered if the PSU gives out and damages my other components." not 100% sure but Im fairly certain the answer is no. But with a corsair unit I doubt you have to worry too much even their cheap units like the CX series have decent voltage protection even though they used cheap caps. It damaging the system is possible(lightning strike or a massive power surge might do it) but unlikely. Now with a brand like Raidmax, Apevia, Logisys, etc then you should be worried about it killing the system, those manufacture have little to no protection on their units and have been known to damage other components.