My girlfriend has a Sager NP7330 (Core i7 4700MQ GTX 765M). I noticed it was underperforming in a lot of games. My laptop (Core i5 3210M GTX 660M) normally gets smoked by hers... but recently hers got slower. It got really bad in certain games, so I took a look. I do want to note that she dropped it recently. It knocked off a little piece of the body on one corner... it did complain about a corrupted sector of the harddrive and asked her to run disk cleanup. After doing so, everything seemed fine. Anyway, I did the normal troubleshooting with Optimus (made sure it was running the GTX 765 instead of the HD 4000), updated drivers, etc. In Afterburner, I kept noticing that the GPU never got above 42 C and would only use 40-75% of the GPU. It just wasn't being utilized. On top of the poor framerates, she was getting really long load times and general spiky/stuttery performance. I then noticed that the HDD was running at 55-57 C. This seemed high... here's a screenshot of the SMART data. Seems bad though for the spin up time and seek error rate. My theory is that aside from any damage to the drive, it's overheating - so the laptop is throttling the other components to prevent further heat in the body. I'd rather not go replacing any harddrives until I'm sure that's the problem though. Not as familiar with harddisks... but what would cause it to suddenly start heating up so much?