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  1. #1
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    CPU Operating Temperatures

    A silly question: does anyone know what a reasonable (read:'normal') operating temperature is for an Athlon XP CPU?

    Mine is currently running at 70deg C which seems a mite high to me, and goes up to 73-74 when under heavy load. Is this too much?
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
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    Re: CPU Operating Temperatures

    I think there have been several discussions about this in this board before.

    I use an 'old' Intel P4 2.4. It runs around 80F (26C) when idle (depending on the room temperature) or around 110F (43C) under load.

    I understand that AMD is supposed to run MUCH hotter, although I wonder if 70+ is a bit too hot... Maybe someone with AMD experience will chime in.

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    Re: CPU Operating Temperatures

    Lyra,
    It seems quite OK based on these numbers.

    CPU Maximum Operating Temps

    The temperatures specified for AMD CPUs max case surface temperatures. These CPUs do not have an internal diode to measure CPU temperature. The accuracy of the CPU temperature measurement depends on the motherboard; therefore, it is possible that the CPU overheats even though the CPU temperature reported by the motherboard is below the specified maximal temperature.

    AMD Athlon XP
    Processor Specifications Model Number Operating Frequency (MHz) Nominal Voltage Max Die Temperature

    1500+ 1333 1.75V 90 Degrees Celsius

    1600+ 1400 1.75V 90 Degrees Celsius

    1700+ 1467 1.75V 90 Degrees Celsius

    1800+ 1533 1.75V 90 Degrees Celsius

    1900+ 1600 1.75V 90 Degrees Celsius

    2000+ 1667 1.75V 90 Degrees Celsius

    2100+ 1733 1.75V 90 Degrees Celsius

    There is more info HERE
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    Re: CPU Operating Temperatures

    I think the monitoring software on my Asus has a default warning level at about 70C. I think the operating temperatures for these sorts of chips goes up to around 90C (check Athlon's website for the exact number for your chip).

    Although I use Pentium IV chips, I have succesfully lowered my CPUs operating temperature from upwards of 70C to the low 50s just by replacing my CPU cooler with a slightly better one, and by being careful with the thermal paste so I only put just enough on.

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    Re: CPU Operating Temperatures

    Hi Lyra,
    70C is quite high for an Athlon processor. Generally, 70C is the maximum allowable temperature, although some specific Barton core Athlons will withstand higher temperatures. A CPU temp of 70C indicates to me that you do not have sufficient cooling, and that you need to do something about it pronto. You should probably shoot for a CPU temperature between 45C and 55C. Your CPU heatsink/fan should be matched to your processor - there is a list of acceptable heatsink combinations on the AMD site. With an Athlon, it's almost imperative that you have good airflow within the case. A front-mounted fan sucking air in, and a rear-mounted fan blowing air out is also necessary. Watch out for IDE cables - they can restrict your air flow.

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    Re: CPU Operating Temperatures

    Thanks for all the replies guys. The fan/heatsink came with the (boxed) processor, so it should be good enough, though it has one of those dodgy thermal 'pads' rather than thermal paste on the heatsink.

    Over the weekend I removed the fan and gave it a clean, and found loads of dust clogging up the fins of the heatsink, so cleaned them out & replaced the fan. Now the diode temp is slightly higher than before!! <img src=/S/confused3.gif border=0 alt=confused3 width=45 height=45>

    A case fan helped, but I think a new heatsink/fan combo will be required, when I get some spare time to take it all apart...

    Thanks again- some good info there. <img src=/S/thumbup.gif border=0 alt=thumbup width=15 height=15>
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
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    Re: CPU Operating Temperatures

    Hi again,
    You probably would be much better off with a new heatsink/fan combo. Get some Arctic Silver or Arctic Alumina, and use it instead of those lousy tapes. You'll see your temps drop by more than a few degrees. One more point -- the only Athlon that should be running upwards of 60C is the 1.34 GHZ Palamino core -- all of the others should be running cooler. 70C is the temp at which Athlons generally begin to sustain damage, so get those temps down!

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    Re: CPU Operating Temperatures

    Just by way of example, my 3200+ XP Athlon on an Abit NF7-S board is running, in a non-air conditioned room, at 39.5C. It goes up to about 44C with a heavy load, but never goes above 45C. Try shooting for something in that range. I have two rear-mounted case fans, one front-mounted fan, and a Thermaltake CPU heatsink. My three other Athlons also don't go over 45C.

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    Re: CPU Operating Temperatures

    I may have to invest in a new case too then, as mine doesn't have anywhere for a front (or side) mounted fan. I suppose I could borrow a dremel, but I'd rather not get into the whole 'DIY' thing...
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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    Re: CPU Operating Temperatures

    Check out PowMax cases -- I just bought two of them from TigerDirect for thirty bucks ea. They come with a 450W PSU and front mounted USB and sound. Good deals.

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    Re: CPU Operating Temperatures

    Ok, will check them out- thanks for all your advice. <img src=/S/thankyou.gif border=0 alt=thankyou width=40 height=15>
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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    Re: CPU Operating Temperatures

    Anytime...

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    Re: CPU Operating Temperatures

    Here's an example of someone who takes their cooling to ridiculous extremes...
    Attached Images Attached Images

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    Re: CPU Operating Temperatures

    That's gotta be almost as loud as a jumbo jet taking off!

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    Re: CPU Operating Temperatures

    <img src=/S/laugh.gif border=0 alt=laugh width=15 height=15> And if the fans were all pointed the same way, would probably generate just as much lift!
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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