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CPU temp difference between 2400 and 2700



 
 
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  #1  
Old May 8th 08, 07:33 PM posted to alt.comp.hardware.amd.x86-64
Lee M.
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Posts: 81
Default CPU temp difference between 2400 and 2700

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?


  #2  
Old May 8th 08, 08:18 PM posted to alt.comp.hardware.amd.x86-64
Wes Newell
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Default CPU temp difference between 2400 and 2700

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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  #3  
Old May 8th 08, 09:51 PM posted to alt.comp.hardware.amd.x86-64
Lee M.
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Posts: 81
Default CPU temp difference between 2400 and 2700


"Wes Newell" wrote in message
news:rmIUj.3894$Ve.1899@trnddc08...
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.


 




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