PC starts to whine under heavy load - wav included

Zaggy

<div class="IPBDescription">stresstesting fun</div>What did I do to it?

I OC'd my 8800gts to 600/1000 with atitool, put on the 3d view and started orthos (stresses CPU/RAM).
Power usage went up to 245W (new record for me)
CPU is actually undervolted to 1.2V using the BIOS, since I was interested in lowering the temperature/Watt usage at the time.

Now my PC starts to whine!
I'm sure it's something with the videocard, if atitool's 3d rendering window loses focus, the whining stops.
It's not the videocard fan, since I've put it at 60% fixed with the Nvidia Control Panel.
I looked around at various forums, and some folks say it's a capacitor that's going bad or isn't attached properly.

I've recorded the noise and attached it to this post.

What do you folks think?

<edit>
undervolted, not ondervolted :3, thanks Lonyo
</edit>

locallyunscene

Poor thing. I don't know why it's in pain but it sure is screaming.

GiGaBiTe

I used to have that problem with my x800GTO, but rather than whine, it would make some strange ticking noise even with the fan stopped. I replaced it with a GF6800GT and never looked into finding out why.

Xyth

Im almost 100% sure this is "Coil-Whine" caused by a bad transformer-winding. When you overclocked the card you mentioned that you hit a new high in watt usage, this is most likely pulling too much power through a transformer in your PSU causing it to vibrate more then usual. Try using another PSU and see if it stops. You can also try looking inside your PSU and putting some hot-glue on any transformers that look loose.
<img src="http://www.isomatic.co.uk/images/smtraf-11.jpg" border="0" class="linked-image" />
Some examples of transformers that would be in your PSU.

Zaggy

<!--quoteo(post=1660677:date=Nov 15 2007, 03:03 PM:name=Xyth)--><div class='quotetop'>QUOTE(Xyth @ Nov 15 2007, 03:03 PM) <a href="index.php?act=findpost&pid=1660677"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->Im almost 100% sure this is "Coil-Whine" caused by a bad transformer-winding. When you overclocked the card you mentioned that you hit a new high in watt usage, this is most likely pulling too much power through a transformer in your PSU causing it to vibrate more then usual. Try using another PSU and see if it stops. You can also try looking inside your PSU and putting some hot-glue on any transformers that look loose.
<img src="http://www.isomatic.co.uk/images/smtraf-11.jpg" border="0" class="linked-image" />
Some examples of transformers that would be in your PSU.<!--QuoteEnd--></div><!--QuoteEEnd-->


thanks for the tip

Crispy

/remembers to come to Xyth for hardware tech advice

Zaggy

I'm afraid it's my videocard, the noise comes from around the fan area.
I tried turning it down completely just to be sure it's not the fan itself, noise remained.
No overclocking for me, possibly RMA?

People with same issue: <a href="http://evga.com/forums/tm.asp?m=110712&mpage=1&key=&#113538" target="_blank">http://evga.com/forums/tm.asp?m=110712&amp...ey=&#113538</a>