got bad symtoms from my new computer help

hi
this computer is about new. when i play games, i hear small strange sound from the computer(blizzzzzzzz) i opened the case and checked and it wasnt the fan, i noticed that when the cpu usage go over about 50%, i hear that sound. so my conclusion was the cpu. my old pc, had same problem, when the cpu is working, when i work on videon convert, it sounded like little small bip bip bip.
what is wrong with it??
my new computer didnt do this last week...
cpu temp is only 38C at 100% doesnt go higher than that

please help

If you can hear the gates opening and closing on your CPU then you have phenomenal hearing. It sounds like your hard drive you're hearing.

and what do you mean by i have phenomenal hearing??
my friends heard it too when they came over on sunday.

your hsf system is ramping up at higher loads and the noise is the fan

OUCH! Hehehehe! I'd go with unplugging the speakers and trying the finger thingy!!! Next suspect might be the HDD, but I'm betting the bearing/bushing on the HSF is possibly making the noise as it's spinning up to the higher speeds. If that is the case, the "finger" trick will isolate that issue.

so here is my answer for all of you guys. i turned all fans off with my controller, including cpu, still hears it. and i tested it with speaker tooken off. so here are my 2 guesses. mobo amping up as i play game and the other one is the cpu

and "Zorg" what do you mean by underload??
is it bad??

Under load means when you are playing games etc. and putting a power load on the mobo. It's not bad just a condition that exists when you are using the CPU/VGA/mobo heavily. I suspect the voltage regulators on the mobo. Let us know when you find out.

Edit: You might try touching the capacitors heatsinks etc. on the voltage regulator portion of the mobo to see if you can get any changes out of the noise. Don't forget to take off any jewelry.

He said it was on the mobo, but worth a check. It might also be the VGA squealing.

Good point, maybe use a pencil or something else that is non-conductive.

If it doesn't change at least once a month then I think something is wrong. Reply buttons are still missing from the PM section, it's a real pain in the posterior.

The old Vantec Tornado! I have one too. I can't believe that at one time I was willing to hear that constant racket in exchange for a few extra megahertz. As if 305 MHZ was that much better than 300.

I was talking about all of the capacitors and inductors (coils) in the area of the voltage regulator circuitry. It's actually more likely that a coil is causing the squeal. You won't get shocked, just take off any metal jewelry on your hands. As lunyone pointed some of the components can get hot so be careful. Touch them briefly first to see how hot they are. You may want to use the eraser side of a pencil so you don't burn your finger. Don't push too hard just lightly you might find the coil, or capacitor that is vibrating/squealing. If you localize it to the mobo you will need to return the mobo as defective. There is no easy way to fix it, unless you are handy with a soldering iron and can get a suitable replacement component, which doesn't sound like the case.