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Dedodido

What's your lowest CPU temp on air?

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I've recently got a new system, and I've got a pretty decent cooling system (or I think so at least) going on (on air), so I thought I'd look at my CPU temp to see what it was like. Turned out it was at 20C idle, even though ambient room temperature was at 20C too, which I was pretty impressed with.

 

What's the lowest CPU temps people here have managed to attain on air?

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If you think that you have HS which lets cpu idle at amb temp there is no way no how. Your temps are off. The best HS are 5-10c above amb.

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Well, to be honest, the 20 degree ambient temp is an estimate, it's too late at night to be bother measuring it accurately. I used several different bits of software to verify it and they all checked out at 20-21C, so I'm guessing the room temperature must be about 17C or something. I do have a massive 25cm fan on the side of my case mind you.

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the DFI boards arn't the best for temperature measurement.

 

mine says its 22C idle, with a 20C ambient.

 

i'm overclocked a whole bunch, and there's no way in hell it's that cool (especially when the HS is hot to the touch)..

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i think if the HS is hot its doing its job... i remeber some thing like the top of the heat sink was 8 deg hotter than the contact plate... and at idle my cpu gets to amb temp... not always... like now my floor air is 24 and on top of my case its 27 and my cpu temp is 25 (fan is off) and i use that gardian app... its real nice...

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Guest caffeinejunkie

Honestly your only going to your cpu that close to ambients w/ watercooling so it's highly unlikely that any of you are that close. Id recommend testing your temps w/ a probe. The coolest ive had on air was 19c and that was in the dead of a fridged ohio winter w/ a ductmod on an xp90 w/ a tornado @ max so theres almost no way thats accurate.

 

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My personal lowest was 23C after I left a window open to my computer overnight in the dead of winter. Even in Atlanta, it gets pretty damn cold. I woke up the next morning freezing my butt off. The room must have been 15-20C. Mind you that my processor is nakes as well.

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The best temp I have recorded on my system was 20C, with amb temp of 21C.... Yeah I think my sensor is just a tad off... I mean I have great airflow, but thats just not even possible is it?

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I think your sensor is a tad off. I don't think there is any way you can get sub-ambient on air. If you have an ambient temperature of 21 C, I would guess your processor would idle at 28-31 C. But just a guess though. It could be more because you have a dual core.

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13c.

 

That's the lowest I've been on air, diff cpu though then yours, @ 1.45v.

 

I dn what ambients were back then, I just started measuring them recently.

So I'm getting used to that...

 

Though...

Often my hd's are AT ambient or below ^^.

I got 3 hd's, about an inch away from each other, side by side(yes side by side, not stacked).

And they have a 120mm uh panaflo on them.

 

There is this one sensor on my mobo I dn what it is, lots of times I've seen it way under ambient.

Sometimes under the -c mark :O.

Other times, after running a while, it rises up arund the cpu's socket temp.

I've sat there and watched it rise from around the 10c's to 40c before ^^, accurate like, liek it's not fake and it's not worng sorta thing...

I dn what to think on that one, it boggles me :.

 

My south bridge is at ambient, or slightly above it at all times.

A 120mm panaflo, again uh, is over 6 inches away from it easy.

Blowing right on it sorta, well it hits all my slots so...

 

My nb, is around 2c above ambient, the last few times I checked, I have'nt checked it much.

 

My cpu's diode, goes below ambient all the time.

Not at all times, but it it does doit alot.

That has a swiftech pos heatsink on it lol, with a very old 80mm tornado with wore out bearings.

 

 

I think it's possible to go below ambient with air.

Just that we can't sustain it for very long during stress.

We can't pump it out fast enough/efficiantly by blowing down at the mobo or into our case where it mixes and all that stuff.

 

The reason we don't get condensation, I believe..., is because of pressure.

From the fans, the pressure around such areas is high, so there's no condensation :).

 

If we could pump the warm air out efficiantly straight out the case, we might beable to sustain lower temps mor like water cooling.

As long as we took care of the extra heat as well, ie, the sides of the "tunnel", stuff like that.

 

 

I dn, I always thaught it was a bit goofy too.

Though I did know of it.

However I had no idea that I was under ambient at this scale.

 

 

Note that when heat is up, most of my hd's except one go above ambient.

Around ambient of 30c probably.

2 diff models of wd's, and one seagate...

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my cpu idle at amb temp if not less most the time and i have intake temp montered. when its -10c out side and i put a fan infront of my case with the window open ive see -10c on my cpu

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