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Your CPU temps are meaningless... - Page 7

post #61 of 129
my ambient temp is between 21and 22c sort of flutuates yet my cpu idles @22c i do have the esa version of the armor plus its simply made for overclocking lol my room temp is therostated at 22c with ac on ive had teh room temp at 15c in the summer! i live in the uk lol so its never really that hot my ac is currently off as in the winter we dont need it :-/
post #62 of 129
It's only logical that the computer temps is dependent on ambient temperarature. The greater the difference between the components temp and the air temp, the more heat will be exchanged.

Quote:
Originally Posted by Taeric View Post
Try this experiment - put two glasses of water in a freezer - one tap water, one hot water (heat it up good). The hot water will freeze first. The rate of heat exchange more than makes up for the additional heat that needs to be dissipated. (this is why hot water pipes burst in the winter while cold water pipes rarely do).
This is wrong. You are not taking into account the rate of change of the rate of change of the exchange of temperature. Let's say you have a glass of water at 10C, and one at 20C. The intial rate of change of the second glass will be greater, therefore It will take less time for the second glass to get from 20C to 10C than for the first to get from 10C to 0C, but both of them will take the exact same time to get from 10C to 0C. However, by the time the second glass get to 10C, the first one will be below 10C already.

What makes hot water pipes burst is that hot water is supercooled, then it freezes all at once, making the pipe burst. Hot water will supercool but not cold water, because the foreign particles in hot water are broken down by the heat, making it harder for ice crystals to form. The cold water pipes will freeze sooner, but they will do so gradually, blocking the pipe, but not bursting it.
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post #63 of 129
Wow I read this topic thinking "cool a discussion I enjoy!", only to see it's a 3 year old topic. -_-

But anywho, since it was bumped up, I think I should be happy that my ambient to CPU idle temps are only 1-2C difference. Right now in winter time our house stays right around 70F throughout the day and CoreTemp reads my CPU anywhere from 73-82F. And what I found interesting is when I installed my 8800 GT last week, I had the side panel off for a few hours as I was testing it and doing benchies and the CPU was idling below ambients which I found surprising.
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post #64 of 129
why not make a temp index, call it... core load - room ambient = ocntempindex. or OTI. so for me 59c - 24c = 35 OTI. A basic variance integer between off (room ambient) and on (core load) temps?
post #65 of 129
Ambients don't really matter because you should be going off of the temp difference(load-idle) to know if you have your cooler mounted correctly compared to others with the same/similar set-up..

Edit: Ambients will always change but the temp difference of using a specific cooler should always be almost the same. Ex If someone has 20 idle and 40 load with a tuniq and I have 30 idle and 50 load with a tuniq both on a q6600 go, then we both have it mounted right/the same and you would know nothing is wrong. The ambient temp itself doesn't factor into it.
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post #66 of 129
nice tip AZAZEL
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post #67 of 129
or you can be like us 45nm users and not even gt correct temps LOL.
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post #68 of 129
this is why i put my reserator in my bathroom (nextdoor) which is very cold because of the round hole in the wall. it really does affect cooling temperatures more than i imagined
post #69 of 129
im seriously thinking of connecting the front intake of mine to the window via a tube...ive already installed 2 120mm fans in the window and say my room got cold friggin fast. It would add some leetness, but it would be *** when ppl come over lol
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post #70 of 129
Wow this kinda of confused me. ( that happens alot) If I am reading this correctly, in theory it is ok to have above 55c for your temp on your CPU if your ambient is high enough? My understanding was it is always bad to go above that, but I fully understand the concept that your CPU cooler can't cool below ambient, and the hotter your room is the hotter your computer will be
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