I was looking for same thing. My problem was, i used to get lot BSODs, which i ignored and restarted the system and played DOTA 2. I had no issues then. But after sometime I didn't start PC for probably a week. Then started the PC, it was too slow. I mean the RED light on CPU was continuously on and not blinking at all. After system taking 10 minutes to start, then slowly it started to blink, and system was not responding with the normal speed. It took some 15 secs to open my computer. I couldnt even browse i.e if i open multiple tabs on chrome, browser used to hang, and respond after another 10 secs or so. I really getting frustrated... I run HD tunes software, i started with benchmark, and on half way it said couldn't read the block or something like that. I want to know if my HDD life is ending? Will my problem solve if i get new hdd. Is there any chance of system getting bottlenecked if i buy new one?
My System Config:
AMD Athlon II X4 620
WD Blue 500GB
Kingston 800MHz RAM
Biostar TA790GXB a2+
Cooler Master 450w Extreme Plus (not sure)
Zotac 9600GT 512MB