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Old 08-23-05   #1 (permalink)
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Default Your CPU temps are meaningless...

Your temperatures mean absolutely nothing without providing the ambient temperature. In order to make any form of comparison between different rigs, then the ambient temp must be exact same. For example: let's say that John Doe has a 3.0 Prescott and is using a Thermalright XP-90 as a heatsink. John claims that his idle temps are 50C and full load temps are 65C. Most people would say that is way too hot. Those same people would also say to reseat the heatsink, try different amounts of thermal interface material, etc., etc. Well, if John's ambient temps were ~35C, then his cpu temps would be in line with the performance of the heatsink. Now if John's ambient temp was 25C, then his cpu temps would be way too high given the cooling that he is using.

Another example: let's say both Chris and Mike both claim that their car has 500 horsepower. However, Chris' car weights 4000lbs, while Mike's car weighs 2500lbs. Who would win in a drag race? Mike would of course(assuming all else is equal). Both cars have the same amount of horsepower, but other factors, such as the weight, are very important when trying to make a comparison. The bottom line is that you just can't make a direct comparison of temperatures without knowing all the variables; ambient temperatures being of the most important of those variables when discussing cpu temps.
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Old 08-23-05   #2 (permalink)
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So that makes my temps good . My ambient temp is about 30C.
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Old 08-23-05   #3 (permalink)
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Yeah, so when you are checking your temps and posting them here, please turn your air conditioning on!

Noticed that today, turned the air off and my cpu went about 4 deg higher!
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Old 08-23-05   #4 (permalink)
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Here here!

My temps drop over 8C when I bump the AC on...

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Old 08-23-05   #5 (permalink)
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I hear you Lando.
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Old 08-23-05   #6 (permalink)
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How about running a duct to the floor register... Then in winter I will run it out the window...
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Old 08-23-05   #7 (permalink)
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You will get condensation, moisture will build up in your rig, then everything could be toast. It is best to just run the A/C so that your overall ambient temp will change and be stable at a certain point. That's what I've done and it works great.
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Old 08-23-05   #8 (permalink)
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I know, but its a good thought... You could insulate the duct, but the condensation would still form on the fan, I dont think the condensation would form on the heat sink or on anything else after its passed through it...
How do they get those phase change systems to avoid condensation?
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Old 08-23-05   #9 (permalink)
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To those who aren't pros, I've found this site to be extremely helpful with heatsink rankings, C/W ratios, dBa ratings, watercooling...it's just so helpful.
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Old 08-23-05   #10 (permalink)
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Nice job Lando. I tried to make this point in a thread once and it didn't come off too well. This is the main reason why many of us have a winter OC and a summer OC... or am I the only one? See, in winter my ambient temps were slightly under 20 C and now they're over 30 C. It makes a huge difference in my load temps even on water. I like to think of my OC as being 13 C difference from ambient to load... if I was only in Canada eh during winter

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