X800XL Strange overclocking problem

[Mavhenz]

Hi everybody!

I have overclocked my Radeon x800xl to 570 GPU and 570 MEM.
Stock 400 GPU and 490 MEM
Can't go higher due to artifact problem.

The problem is that I ear a strange sound... it's sound like a hard drive or a cd/dvd-rom drive spinning and stopping... Sound like future trouble...
Everything goes well except that I experience some sound difficulty went I play one specific game. (DOW)

This strange sound only appear when I play game or benchmark, test whatever...

I think it's my hard drive doing this because my power supply couldn't simply supply the power for it.

I simply want to know where this might come from, don't say to lower the overclock, I won't touch it until I and sure where this thing come from.

My config:

PSU: Antec 380 power supply
PRO: P4 3.2 OC to 3.86GHZ
MEM:2 Gig ram OC Xms 2.3.3.5
GRA: Radeon all-in-wonder X800XL
MO: Asus p4p800 Se
HD: Seagate Barracuda 7200.10 160 GIG

6 X 80 mm blue led fan
1 X 120 mm fan
Zalman CNPS 9500 LED CPU cooler
Zalman VF-900 Cu led cooler

The more I think, this might be my PSU, but I wan your advice!
Thx.

[PorPorMe]

If it were me I'd see if it was the OC since I can't identify a part. Start to back it off a little at a time and benchmark it, not for OC but for your phantom noise.
Another idea. Purchase a Doctors stethascope. Remove the case and set up your computor so it is makeing the sound and start listening to each part with the stethascope. Good luck!

[MUff1N]

Another thing along the stethoscope line is to just take a tube of about 3/8" (Clear hose like a water cooling system has) and put it in your ear & move the front of the hose opening from place to place listening for the sound. You'll know when you find it because it will be really loud.
I used to use this when I was trying to find out which lifter was going bad listening to engines...

[PorPorMe]

That's a good'n too!

[ccperf721p]

It could very well be the fan on the video card spooling to max speed during graphics intensive apps.

Use atitool or rivatuner to adjust fan speed to 100% and see if that is the noise you are hearing.