CPU Temperature: what is acceptable?


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WB
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Message 79157 - Posted: 13 Feb 2005, 20:00:05 UTC

Does anyone have a link to, or knowledge of acceptable CPU temperatures for various processors?

I have two systems running side by side, and one is running very warm compared to the other.

CPU: Intel 2.0 GHz
Motherboard: Asus P4S333
CPU temp: 46c (alarm set at 60c)
Mobo temp: 41c
Fan on back of box, fan on front bay of box
air coming from front fan is room temp.

CPU: Intel 2.4 GHz (533 MHz)
Motherboard: Asus P4P800 MX
CPU temp: 61-65c jumps (alarm set at 72c)
Mobo temp: 47c
Fan on back of box, fan on front bay of box
air coming from front fan is noticably warmer than above machine.

Although the AsusProbe software says all is "ok" in the ranges for both boxes, I'm wondering why the other box is running so much warmer, and if it's reasonable compared to other 2.4 GHz CPU's

Thank for any info, insight into this...please feel free to add your thoughts.


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Message 79158 - Posted: 13 Feb 2005, 20:09:50 UTC - in response to Message 79157.

CPU: AMD Athlon XP3200+
Motherboard: Gigabyte GA-7VT600-P
CPU temp: 46c (low) / 54c (under load)
Side in fan and back out fan also exaust fan next to gfx card
the AsusProbe software says all is "ok" in the ranges for both boxes,


Theres my temps
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Profile Borgholio
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Message 79162 - Posted: 13 Feb 2005, 20:34:52 UTC - in response to Message 79157.

> Does anyone have a link to, or knowledge of acceptable CPU temperatures for
> various processors?
>
> I have two systems running side by side, and one is running very warm compared
> to the other.
>
> CPU: Intel 2.0 GHz
> Motherboard: Asus P4S333
> CPU temp: 46c (alarm set at 60c)
> Mobo temp: 41c
> Fan on back of box, fan on front bay of box
> air coming from front fan is room temp.

This temperature is just about right. My P4 2.4ghz runs at 45c uner load.

>
> CPU: Intel 2.4 GHz (533 MHz)
> Motherboard: Asus P4P800 MX
> CPU temp: 61-65c jumps (alarm set at 72c)
> Mobo temp: 47c
> Fan on back of box, fan on front bay of box
> air coming from front fan is noticably warmer than above machine.

This is too warm. See my previous comment. You should try re-seating the heatsink, using a larger heatsink, using a larger case (more airspace) or putting more fans in.

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Message 79163 - Posted: 13 Feb 2005, 20:35:53 UTC

Take a look at
max cpu-temps

WB
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Message 79166 - Posted: 13 Feb 2005, 20:39:11 UTC - in response to Message 79158.

Thx for the info Paul...(btw, I see you've got great WU credits now)


Update:
On my 2.4 GHz box, I checked the back fan and it was blowing INTO the box.
Repositioned that fan to blow OUT of the box.

CPU temp dropped by roughly 4c
Mobo temp dropped by roughly 6c

CPU temp now wavers between 58-61c previously 61-65c
Mobo temp is now the same as other box at 41c previously 47c

(my fault for fan direction error, I built the boxes...)


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WB
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Message 79169 - Posted: 13 Feb 2005, 20:43:22 UTC - in response to Message 79162.

> My P4 2.4ghz runs at 45c uner load.
> You should try re-seating the
> heatsink, using a larger heatsink, using a larger case (more airspace) or
> putting more fans in.
>

Thanks for the info.

Yours is running at 45c and mine is 58-61.

That's quite a difference!!

Will try your suggestions.
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Message 79176 - Posted: 13 Feb 2005, 20:57:42 UTC

I am running Seti on a

AMD Athlon 64 3200+
CPU Full load : 44 degrees
Motherboard : 30 degrees
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Message 79178 - Posted: 13 Feb 2005, 21:01:05 UTC

My specs for comparison:

P4 3.0 (Prescott, HT)
Asus P4P800E deluxe

CPU Full load 55 degrees
Motherboard 38 degrees


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Message 79180 - Posted: 13 Feb 2005, 21:03:53 UTC

There's a lots of talk about cpu temps. The problem is that most cases the temp is not measured from cpu, but under it. So the temp readings you have might not tell the cpu's real temperature.

In reality most cpu's are designed to work continuously at 80-95 'C. For example if you have P2.4 it should run nicely with core temp around 80'C.

Overclocking decreases the stability and thus limits the temp your cpu should be running.

With seti always on my cpu (p4-2.66@2.85) has mobo temp ~55 and cpu temp ~62.

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Message 79198 - Posted: 13 Feb 2005, 21:47:35 UTC

You wana look at my temps! i have 10 fans in my pc :D

2.8 p4
CPU load = 35C
CPU no load = 29C
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Message 79210 - Posted: 13 Feb 2005, 22:20:07 UTC - in response to Message 79198.

> You wana look at my temps! i have 10 fans in my pc :D
>
> 2.8 p4
> CPU load = 35C
> CPU no load = 29C
>

IT MUST BE THE NOISYEST PC IN THE WORLD!! lol
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Message 79211 - Posted: 13 Feb 2005, 22:20:29 UTC - in response to Message 79166.

> Thx for the info Paul...(btw, I see you've got great WU credits now)
>
thats ok and yeah my credits r flowing now
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WB
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Message 79228 - Posted: 13 Feb 2005, 23:17:47 UTC

Thanks everyone for the info.


I reseated the heatsink fan with no change in temps.


Will look into more fans.


:)



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Message 79229 - Posted: 13 Feb 2005, 23:28:51 UTC

my Athlon64 3.200+ under Full Load Einstein@home

65 Degrees, that is 5 Degrees higher than with Seti...

it is a Silent System, and running perfectly.

Greetings from Germany NRW
Ulli S@h Berkeley's Staff Friends Club m7 ©

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Message 79384 - Posted: 14 Feb 2005, 16:33:26 UTC

I run an AMD64 3200+, and i start to fiddle with my fans once the temps reach 58C.
Right i'm running about 49-51 with Seti WU's. (with 4 fans, 3 in and 1 out, not including PSU fan).
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Message 79445 - Posted: 14 Feb 2005, 22:33:30 UTC - in response to Message 79228.

> Thanks everyone for the info.
>
>
> I reseated the heatsink fan with no change in temps.
>
>
> Will look into more fans.
>
>
> :)
>
>

Uh, did you also replace the thermal paste, or did you re-use the old stuff (= very very bad, and you should be punished for abusing your CPU)
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Message 79448 - Posted: 14 Feb 2005, 22:41:54 UTC - in response to Message 79445.

> > Thanks everyone for the info.
> >
> >
> > I reseated the heatsink fan with no change in temps.
> >
> >
> > Will look into more fans.
> >
> >
> > :)
> >
> >
>
> Uh, did you also replace the thermal paste, or did you re-use the old stuff (=
> very very bad, and you should be punished for abusing your CPU)
>

I think thermal paste is overrated. I never use the stuff.
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Message 79471 - Posted: 15 Feb 2005, 1:10:16 UTC - in response to Message 79157.

Check out Tom's Hardware Guide...
http://www6.tomshardware.com/cpu/20011031/index.html
Lots of CPU's and Much other Valuable Information...
L


> Does anyone have a link to, or knowledge of acceptable CPU temperatures for
> various processors?
>
> I have two systems running side by side, and one is running very warm compared
> to the other.
>
> CPU: Intel 2.0 GHz
> Motherboard: Asus P4S333
> CPU temp: 46c (alarm set at 60c)
> Mobo temp: 41c
> Fan on back of box, fan on front bay of box
> air coming from front fan is room temp.
>
> CPU: Intel 2.4 GHz (533 MHz)
> Motherboard: Asus P4P800 MX
> CPU temp: 61-65c jumps (alarm set at 72c)
> Mobo temp: 47c
> Fan on back of box, fan on front bay of box
> air coming from front fan is noticably warmer than above machine.
>
> Although the AsusProbe software says all is "ok" in the ranges for both boxes,
> I'm wondering why the other box is running so much warmer, and if it's
> reasonable compared to other 2.4 GHz CPU's
>
> Thank for any info, insight into this...please feel free to add your
> thoughts.
>
>
>
____________
LarryB56

Grant (SSSF)
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Message 79483 - Posted: 15 Feb 2005, 1:45:04 UTC


> Does anyone have a link to, or knowledge of acceptable CPU temperatures for various processors?

General rule of thumb- If it's working, then it's OK. If the system is unstable, then it's too hot.
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Grant
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Message 79485 - Posted: 15 Feb 2005, 1:46:23 UTC - in response to Message 79448.


> I think thermal paste is overrated. I never use the stuff.

Try it, your CPU temp should drop by as much as 5&deg;c. Of course if you put too much on then the temp may increase by a couple of degrees.
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Grant
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Message boards : Number crunching : CPU Temperature: what is acceptable?

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