Your gaming woes might be linked to overheating VRAM, not the GPU core ...
Unless you add a measurement instrument to your computer, you have only the sound card as an analog I/O port. You can use the sound card to digitize AC analog voltages but only within a limited range.
I have a question regarding the the temperature of my new videocard. I've been playing Guildwars alot of late and I've been having an issue with it locking up, giving me a BSOD. Now the BSOD says its ...