I have heard a similar sound. Mine is a whining sound and seems to be caused by the p/s fan speeding up because of high case temps. If you look at CPU usage when you scroll it can reach 50% or atleast me. It's interesting that scrolling causes a system to heat up that much.

Glad to here its working!!

Check to see that your copper shim is not shorting someting out on the chip. Just an idea.

same here

They say thermo-electric so i'm guessing a peltier.
Maybe silent,but who knows.

go buy a small car cooler/drink fridge for like $50 at walmart and duct it to your pc.
that way you only cool the pc not the whole room.
might look ghetto though

my p/s fan will whine if temps get to high.
my guess is that it speeds up and is not a great fan.
stops when i take the side of my case.

does anyone know if the small business clients that link to a server for storage. no moving parts in your machine. if only they made them so that processing power came from the server also then you would not have to depend on the build in 300 or so mhz proc.

thanks for the suggestions.

I'll think i'll try an L1A blowing on it.
Sounds like a cheap and logical solution.

I want to quiet my graphics card without voiding the warranty by replacing the heatsink. I have a G4 ti4200. Want a cheap solution. Does anyone have suggestions?