Gehigh pitch whine through speakers during game play

[Nyquest007]

It's a high pitch whine, that continues after the game locks up. I have to hit the power switch. I think it may be my v-card, but could be mem. I tried helping out the gf4400 with thermo grease between the hs/fan and after a day of gaming oc'd it started booting up as a 4200 and is now stuck on the 4600 label. The bios at post still reads 4400, I'm confused. I have no idea whats going on with it other than it's fried. Also, I just added another 512 stick to my current 512 set up. Any ideas?

 

[bjc112]

Wait, are you running stock speeds on the GPU now? If not, do so.

Ram? Run Memtest 86 ( bootable Floopy )

Try one stick at a time, different slots each time...