Ambient Temps and CPU?

[Virgorising]

Hi,

How much do ambient temps impact CPU temps?

I notice, now that is is warm here, my CPU temps at idle are slightly higher than formerly.....maybe 4-5C degrees higher.

Thanks!

 

[SPBHM]

big impact, that's why normally when you test CPU coolers you always need to specify the ambient temp, or just show the difference from ambient to CPU temp.

my CPU temp right now is 10ºC+ lower idling than it can be during the warmer days, and under load is not to far from that

 

[Virgorising]

big impact, that's why normally when you test CPU coolers you always need to specify the ambient temp, or just show the difference from ambient to CPU temp.

Ahah! Despite its logic, I did not know this!

my CPU temp right now is 10ºC+ lower idling than it can be during the warmer days, and under load is not to far from that

10C????

You must live somewhere where the seasons are different from where I am given yr temps are now lower.

Thanks a lot.......I now will try to stop worrying about a bump of 5C; I was about to take things down and apply new thermal paste. I am....a WORRIER.

Just realized, when things get insufferable enuff re heat and humidity here (for me, they are not there yet).....and I need to run the A/C (hate the A/C), I guess my core temps will return to what I came to feel was normal for this chip: 27-28C at idle.

 

[Idontcare]

Hi,

How much do ambient temps impact CPU temps?

I notice, now that is is warm here, my CPU temps at idle are slightly higher than formerly.....maybe 4-5C degrees higher.

Thanks!

The relationship is not linear because the CPU itself generates more heat, and thus has an even higher operating temperature, as it becomes hotter itself.

If the CPU was nothing but a heater then its operating temperature would rise in a "1 to 1" fashion with the rising ambients.

If your ambient rose 1°C then so too would the peak operating temperature of the "heater".

But your CPU generates more heat as it gets hotter, raising the operating temperature even more so.

As such, if your ambient rises say 4°C, your CPU's peak operating temperature may very well rise by 5 or 6°C.

The extra increase in operating temperature coming from the extra waste heat being generated from the elevated leakage within the CPU now that it is operating at the higher temperature.

A longer and more elaborate data-backed explanation can be read here: http://forums.anandtech.com/showthread.php?t=2281195

 

[Virgorising]

The relationship is not linear because the CPU itself generates more heat, and thus has an even higher operating temperature, as it becomes hotter itself.

If the CPU was nothing but a heater then its operating temperature would rise in a "1 to 1" fashion with the rising ambients.

If your ambient rose 1°C then so too would the peak operating temperature of the "heater".

But your CPU generates more heat as it gets hotter, raising the operating temperature even more so.

As such, if your ambient rises say 4°C, your CPU's peak operating temperature may very well rise by 5 or 6°C.

The extra increase in operating temperature coming from the extra waste heat being generated from the elevated leakage within the CPU now that it is operating at the higher temperature.

A longer and more elaborate data-backed explanation can be read here: http://forums.anandtech.com/showthread.php?t=2281195

Could this be more interesting than it is?

NO!!!!:biggrin:

The collective expertise in this community...is stunning.:biggrin:

(I just earlier, after reading the first response in this thread, put one of my small Vernado fans on the floor aimed at the intake on the front of this ATX box. It made me feel better.)
_____________________________________________________
Edit: hold on......I jus remembered, sometime pretty long ago here, I read in some thread that evne n boot, hyr CPU temps are as high as they will get....depending, of course.

I took that to mean it's not as if on boot, yr chip is cooler than it will be, say, at idle....20 mins later.

 

[Virgorising]

Below.....this is now, and I've been running the little Vernado fan for maybe half an hour. Temps still a bit higher than usual; they used to be more like 27C....but these are only slightly lower than before I got and put the fan where it is.

I think, hardly for the first time, I am driving my self nuts over nothing.

 

[SPBHM]

if anything the GPU is a little warm if it's not doing something, but nothing to be worried about...

 

[Virgorising]

if anything the GPU is a little warm if it's not doing something, but nothing to be worried about...

Sigh. If my AMD catalyst Control Center were working, I would up the fan speed. But it has not been working for a while.

I will try to do that using Speed fan.

Wish my chip had integrated video.....but it never will. I am not a gamer, don't do fancy graphics thingies....I like integrated video.

Thank U for yr input.

 

[MongGrel]

Physics in action.

 

[Virgorising]

Physics in action.

Indeed!

Know that no way do I have the stock intel cooler....this is an uber proprietary Optiplex cooler. With the stock cooler, this chip runs much hotter.:|

I raised the fan speed a bit.....but still tempted to replace the thermal paste....what they use at the factory is never good.

 

[VirtualLarry]

I think, hardly for the first time, I am driving my self nuts over nothing.

You tend... to do that.

You have an Intel CPU, right? As long as load temps are under 80-85C, don't worry a thing about your temps.

 

[Virgorising]

You tend... to do that.

Ya think???:sneaky: (Junk files from hysterical mom who has never enabled TRIM)

Thank U, Larry, I will work hard to not even monitor everything every 11 mins.

 

[VirtualLarry]

Ya think???:sneaky: (Junk files from hysterical mom who has never TRIM)

Thank U, Larry, I will work hard to not even monitor everything every 11 mins.

It's fine to monitor temps. I think I run CoreTemp on nearly all of my PCs. It's what you do with the results that matter. "Don't Panic!"

 

[Virgorising]

It's fine to monitor temps. I think I run CoreTemp on nearly all of my PCs. It's what you do with the results that matter. "Don't Panic!"

:thumbsup:

Ironic, when friends text me re COME HERE!!!! when their systems are yet again are messed up, I am totally calm.

Cause, I have come to expect it from experience. Second I see something maybe not perfect in MY computers, it's OMG, the sky is falling, get the thermal paste!