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Lee M.
May 8th 08, 07:33 PM
All other things equal, what would you expect the CPU idle temp difference
(if any) to be between an AthlonXP 2400 (266FSB) and a 2700 (333FSB)? Would
you think a 5-6F lower ambient and better ventilated case would result in a
19C lower CPU temp for the 2400?

Wes Newell
May 8th 08, 08:18 PM
On Thu, 08 May 2008 14:33:29 -0400, Lee M. wrote:

> All other things equal, what would you expect the CPU idle temp
> difference (if any) to be between an AthlonXP 2400 (266FSB) and a 2700
> (333FSB)? Would you think a 5-6F lower ambient and better ventilated
> case would result in a 19C lower CPU temp for the 2400?

They should both have simliar temps, assuming they are the same core
version, same vcore (1.65v), cooler, MB, etc. The 2700+ should probably
run about 1-3C hotter. This has been my experience using probably 20-30
different K7 CPU's. I'd check vcore and cooler installation with that big
of a difference. Core speed doesn't matter a lot.

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Lee M.
May 8th 08, 09:51 PM
"Wes Newell" > wrote in message
news:[email protected]
> On Thu, 08 May 2008 14:33:29 -0400, Lee M. wrote:
>
>> All other things equal, what would you expect the CPU idle temp
>> difference (if any) to be between an AthlonXP 2400 (266FSB) and a 2700
>> (333FSB)? Would you think a 5-6F lower ambient and better ventilated
>> case would result in a 19C lower CPU temp for the 2400?
>
> They should both have simliar temps, assuming they are the same core
> version, same vcore (1.65v), cooler, MB, etc. The 2700+ should probably
> run about 1-3C hotter. This has been my experience using probably 20-30
> different K7 CPU's. I'd check vcore and cooler installation with that big
> of a difference. Core speed doesn't matter a lot.
>


The CPU-Z descriptions are identical. The 2700 is actually running at
slightly lower voltage (1.60 vs 1.63 according to CPU-Z). Mobos are very
similar Epox, same nVidia nForce2-400 chipset. The case temp of the 2700
also runs substantially hotter, 35-39C, at 68-72F ambients. Case temp on
the 2400 box is currently at 24C at an ambient of 68F (it's in the
basement). 2400 using a stock AMD heatsink, the 2700 has an all copper
Thermalright.

Prior to getting the 2700 chip, I was using an 1800 with a Via KT266a
chipset. It ran 27-28C case temp and 37-39C CPU (at idle) temps in the
exact same setup as the 2700. As soon as I installed the 2700, the case and
CPU temps rose about 10C. The system is stable but I've never been able to
figure out what caused the significant increase in case/CPU temps.