Need help. Frame rates have dropped

I'm going to take it for granted you've done the usual antivirus scan, spyware scan, defrag, scandisk, ccleaner, etc etc etc to get all the little nasties out of your system.

Something some people forget is to clean up old drivers, so get yourself a nice driver cleaner, download the latest drivers for your card, get rid of the old ones, clean, and install the new ones (might need a restart or 2 between some of those steps, depends on the cleaner).

Might be time for the old clean start if you really want to rule out disk clutter, format and reinstall. Make sure to backup things like saves, Steam games (oh yea, like I want to download that 30gb again), and such.

Apart from that, your rig looks to be pretty solid so I'm going to rule out parts fading due to old age. Might want to check your voltages though just to be sure.

Yep, I've gone through all of the scanning, cleaning and defragging. I guess I need to try the driver cleaner. Do you have one you recommend? I'd really like to avoid the "start from scratch" route if possible, but I know that sometimes that's the only way to go. Yuck. I've been looking at some of the PSU tester out there. They seem pretty handy and quite inexpensive.

Ah yes dust is another major factor, why didn't that occur to me... Anyway, I use Driver Sweeper to clean up my drivers whenever a new one's released.