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Burning Smell When Stress Testing

post #1 of 33
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Hi guys, last night I tried stress testing my Q6600 at 3.6 GHz with 1.3125V. Temps reached 81 degrees under Intel Burn Test. I thought it was fine considering I've seen a lot of people reach such temps under extreme OC's.

However, I was alarmed when I started smelling a light burning smell, similar to how it smells when soldering something. Immediately I shut down my computer and opened up my case, fearing that I blew up a capacitor.

The smell was there when I opened up the case, but all the caps looked normal (they're all solid caps by the way). There were no burn marks anywhere on the motherboard as well. I rebooted at my standard frequency of 3.4 GHz, and then ran IBT once again, and the temps were the same as what they usually were, 70-72 degrees. I took this as a sign that my board's voltage regulation system was still working fine.

Today, I tried running IBT again at 3.6 GHz, and the burning smell was there again. However, while running the test, I was keenly observing my rig and nothing was sparking or emitting smoke. Nonetheless, I once again reduced my clocks to 3.4 GHz at 1.2375V. I then curiously ran IBT again, and tried sniffing around my case again. Even at 3.4 GHz, which I've tested stable in IBT and Prime for several hours, there was still a very faint smell of soldering in between my cooler and my exhaust fan.

I wonder, what could the smell be? Is it dangerous, or am I simply overreacting over something normal?

By the way, my motherboard is an Asus P5QL Pro and my heatsink is a Cooler Master Hyper 212+.
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R34
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post #2 of 33
There shouldn't be a burning smell. Probably from the PSU.

Shut the PC down right after the stress test and sniff around.

I still don't know why people run IBT. Just to see if their rig will die from heat or not?
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post #3 of 33
People run IBT to test stability...
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post #4 of 33
iIts could be your vrms cooking themselves.
Since your motherboard has no vrm cooiling i suggest you get some mini heatsinks on there.
Edited by konspiracy - 10/30/11 at 8:27am
post #5 of 33
That P5QL PRO is not suited for extreme overclocking, as it has only 4 CPU power phases, and only a 4-pin CPU power connector instead of 8 pin.

So take it easy...

    
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post #6 of 33
thread of the week!
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post #7 of 33
were you cooking anything at the time?
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post #8 of 33
post #9 of 33
I have the same problem mate. My VRMs yesterday were at 92°C... these mobo's aren't made for overclocking

They were buzzing like hell and when I touched one I actually burned my fingertip, so I took a digital measure to see how hot it was and 92°C popped up. After I shut down the PC that is.

4 power phases are just... no good for overclocking an LGA775 quad.
Edited by Xenthos - 10/30/11 at 8:37am
post #10 of 33
Quote:
Originally Posted by turrican9 View Post
That P5QL PRO is not suited for extreme overclocking, as it has only 4 CPU power phases, and only a 4-pin CPU power connector instead of 8 pin.

So take it easy...

+1

Probably coming from your VRM's. Hold back on the OC or buy some heatsinks for them.
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