Nah, no way. I wouldn't go as far as to say you'd need new hardware. If anything, I'd just reformat my PC. That's normally what I do, but even now, that may seem a little too forward. Sometimes just doing a clean sweep fixes my problems. You could also re-seat everything in your PC, I mean, the simplest methods really are the biggest help. Could give you a great opportunity to clean out your PC and help it's ventilation too!
Just an fyi, by re-seating, I mean, for example pulling out your RAM and sticking it back in. Same goes for power supply connectors, etc. Don't do it if you don't have any experience with it, though. Or, I can find you a guide that will spoon feed you through it. Better safe than sorry.