965P-DS3 makes squealing sounds?

[SPL Tech]

I have:

CPU: Core Two Duo 2.13 GHz. E6400
RAM: 2 GB. Corsair 800 MHz. XMS2 DDR2 (dual channel configuration)
GPU: X1900XT 512MB Connect3D
Mobo: Gigabyte GA-965P-DS3
PSU: 535 watt Enermax Whisper II
HD: 250 GB. Seagate Barracuda 16 MB.


Currently my CPU is OC?ed to 380 FSB or 3.04 GHz. The ram is set at 2.0x to keep a 1:1 ratio and its running at about 730 MHz. I have all stock voltages for it runs stable on stock voltages.

Also the sound changes in frequency. It?s not a solid tone.

I noticed that when I run dual instances of prime 95 or ORTHOS the computer starts to make a high pitch ?squealing sound?. Its interment. It only does it some times. It sounds like its coming from around the CPU area on the motherboard. But its hard to tell. Anyway anyone know what it is or how to fix it? When my CPU is maxed out it runs at about 50 ? 53c. At idle its in the low 40?s.

Also if I lower the OC the noise is not present. Its only present at higher OC levels and when the CPU is maxed out.

ITS NOT A FAN making the noise either.

Further more I noticed that when I run a torture test program it gets louder as the test goes on up until about 15 min into the test. At that point it does not get much louder.

 

[Bozo Galora]

first thing to check is the fanbearing on CPU HSF, by briefly removing 3 pin plug when noisy
but its prob chokes/inductors (things with copper wire wrapped around them in a circle (on the mobo).
there are like 3 around CPU and others below blue PCIE slot
you can take the soft eraser on the back of a pencil and push against the coil (lightly)
I used to use liquid neoprene to stop this - it dries like a rubber consistency, but things get much hotter today - lol
Might be solid filter caps, but that would be my last guess

 

[SparkyJJO]

my asus board does the same. I've just put up with it since I can't track down exactly what is doing it.