The SSD thing, I posted here months ago that when I changed from a HD
to SSD, I was surprised that there is still a faint kind of metallic
tinkling sound coming from the area of the CPU heat sink when the SSD
is doing heavy work. I can't explain it, but it's there. Somehow all
those electron running around manage to generate noise.

I think I remember that discussion. I'm betting it's just thermal
expansion as the CPU heats up under load. All those metal fins expand as
they heat up and can make noise as they move through the brackets or
whatever that hold the fins together.

It's similar to the tinking sound that comes from electric baseboard
heaters when they heat up, except the CPU can heat up a lot quicker.

You could probably fix it by installing a different heat sink that has
better cooling.

Anthony Watson
www.watsondiy.com
www.mountainsoftware.com