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post #21 of 36
again i learn something new.. i thought the northys were the 65nm and were tons cooler then the prescotts.. even more since since the prescotts suck up power for all it can.. i know mine is pretty hot .. but its screem at 4ghz+
    
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post #22 of 36
Quote:
Originally Posted by Trippen Out
again i learn something new.. i thought the northys were the 65nm and were tons cooler then the prescotts.. even more since since the prescotts suck up power for all it can.. i know mine is pretty hot .. but its screem at 4ghz+
No Prescotts are 90NM and Northwoods are 130NM...The Northwood has a shorter stage pipeline aswel making it faster.
post #23 of 36
Quote:
Originally Posted by ENTERPRISE1701
Actually in my personal Experience The Idle temp of the Prescott was cooler as they run on 90nm and northwoods run on 130nm...Just speaking from personal experience.
You are not taking into account the switching power necessary to access the gates. On a non-overclocked system with stock air cooling for both Northwood and Prescott, there is no doubt that Prescott runs hotter. The extra cache helps increase this as well as the gate switching. Did you have more extreme cooling on the Prescott than the Northwood?

Quote:
Originally Posted by Digital-Daily.com
It's also important to note that in the idle mode Prescott processors emit much more heat than Northwoods do. On the average system using a "boxed" cooler, Prescott heats up by 10 C and in the maximum load mode by 15-20 C higher than the Northwood processor.
More transistors mean more gate "Action" and more action means more heat distribution.

http://www.digital-daily.com/cpu/prescott-c/index02.htm

Quote:
Originally Posted by BleedingEdge.com
At first glance, this seems strange - the new processors are manufactured following the finer process technology, which should result in decreased heat emission. All is right in theory, but in practice the new Prescott core offers 125 mln transistors (versus 55 mln in Northwood). It's just the increased number of transistors and "raw" process technology which is the cause of so high heat emission.
http://www.bleedinedge.com/reviews/a..._temps_01.html

Quote:
Originally Posted by Hardware.mcse.ms
The Prescott CPU Idles around 50-55C, but when loaded suddenly temperature can rise to greater than 66C.
http://hardware.mcse.ms/archive23-2004-10-94595.html

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post #24 of 36
Quote:
Originally Posted by Ropey
You are not taking into account the switching power necessary to access the gates. On a non-overclocked system with stock air cooling for both Northwood and Prescott, there is no doubt that Prescott runs hotter. The extra cache helps increase this as well as the gate switching. There are more reasons for this increase and if you wish I will compile them for you.



http://www.bleedinedge.com/reviews/a..._temps_01.html



http://hardware.mcse.ms/archive23-2004-10-94595.html

Did you have more extreme cooling on the Prescott than the Northwood?

R
I will agree wit you there on the fact of the gate switching and cache differences...the Prescott and Northwood have a different architecture so yeah there will be some differences..Just though i would add my personal experiences that i have found Pressies to run cooler at points..Nice info though.
post #25 of 36
Quote:
Originally Posted by ENTERPRISE1701
Just though i would add my personal experiences that i have found Pressies to run cooler at points.
This is why I asked if you had used different methods of cooling on the Northwood and Prescott. Was your testbed the same? What were the testing conditions for both processors?

I am trying to see just how your personal experiences found Prescott at Idle to be cooler than Northwood. I wonder at your testing and the wonder is that possibly external conditions brought Prescott to Idle cooler than Northwood and not the Chips themselves?

Possible?

Quote:
Originally Posted by Trippen Out
i thought the northys tons cooler then the prescotts.
This is what I have found in identical testbeds with the only change in systems being Processor, heatsink/fan assembly (Stock).

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post #26 of 36
Quote:
Originally Posted by Ropey
This is why I asked if you had used different methods of cooling on the Northwood and Prescott. Was your testbed the same? What were the testing conditions for both processors?

I am trying to see just how your personal experiences found Prescott at Idle to be cooler than Northwood. I wonder at your testing and the wonder is that possibly external conditions brought Prescott to Idle cooler than Northwood and not the Chips themselves?

Possible?



This is what I have found in identical testbeds with the only change in systems being Processor, heatsink/fan assembly (Stock).

R
Well with both chips i used the Giga-byte pro cooler and found the Pressie did actually run cooler. Then again these 2 Cpu's do have a different wattage rating and im not sure how many watts of power the Giga-byte cooler is designed to cool as such.
post #27 of 36
Quote:
Originally Posted by ENTERPRISE1701
Well with both chips i used the Giga-byte pro cooler and found the Pressie did actually run cooler. Then again these 2 Cpu's do have a different wattage rating and im not sure how many watts of power the Giga-byte cooler is designed to cool as such.
Ok, it's beyond me.

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post #28 of 36
Quote:
Originally Posted by Ropey
Ok, it's beyond me.

R
Same here all in all the Northie should run cooler yes but its odd that i found the prescotts to run cooler..a little messed up but owel.
post #29 of 36
wow that one article said 50-55 for the prescott.. shees i freak out when my load temps get near that.. should i be a little less conservative with my temps since its a prescott..
    
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post #30 of 36
Quote:
Originally Posted by Trippen Out
wow that one article said 50-55 for the prescott.. shees i freak out when my load temps get near that.. should i be a little less conservative with my temps since its a prescott..
Well the Pressie does get rather hot than most chip but you want to keep it under 50c under 100% load.
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