Yo. Lately, my computer - at POST - has been either sounding a "siren" sort of alarm, or an error message screens stating I haven't connected a molex plug to my 9800pro (and it has already been plugged in). I get these errors occasional, and by turning off the computer and turning it back on a few minutes later, the problem is fixed temporally. It is getting rather annoying, and I am guessing it is a PSU problem. Is this a sign of a pending PSU replacement or something else?