Billy(the kid)

I would like to know how much weather temps affect the temps of gpu-cpu-mb and in general all of the components within the chassis?for example,the temps outside now are 16 in the room where the pc is the temp is 24,and in summer ita can get as high as 29 although in summer it's ussually around 26-28 most of the days.So what temp increase should i expect in summer,i also have some decent airflow in the case?

gablain

if you have food airflow, 1 degree more in the room will rqual one degree plus in your cpu gpu etc///

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TwoCables

The temperature of any physical object is determined by the air temperature as well as the airflow/heat dissipation. So, if you have a physical object that is producing heat, but there is no airflow/heat dissipating, then that object would get really hot due to heat build-up. But thanks to heat dissipation created by moving air, the temperature of that object can be controlled a little bit.

So, the temperature of each component is dictated by the surrounding air temperature as well as how well the heat is dissipated - or rather, how good of a job everything is doing at preventing/reducing/minimizing heat build-up.

It's kinda like the human body since it generates heat. If you are in a warm environment where the air isn't moving much, then you will be hot. But if the air is moving, then you won't feel as hot. If you have a high-speed fan blowing on you, then you will feel cooler.

If you are in a cold environment, then you will be colder. If you have a fan blowing on you, then the heat you generate probably won't keep you warm at all and you'll end up saying, "damn, I'm freezing".

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Billy(the kid)

allright i got the picture!

jpz

First some basic thermodynamics... heat energy flows from hot objects to cold objects. The rate at which heat energy is transferred(watts) depends on certain properties of the medium through which heat is being transferred(I.E the surface area and material of your heatsink) as well as the temperature difference between the hot object and the cold object(temperature of your CPU minus the temperature of the air in your room). When you have a CPU that outputs heat at a constant rate the temperature difference between the CPU and the air will also remain constant, assuming you do not change any of the properties of your heatsink and fan(I.E. you don't change the fan speed). As Gablain pointed out, your CPU temps will increase or decrease linearly with the ambient temperature. If your room temperature goes up by 5 degrees, then your load temps will go up by 5 degrees and your idle temps will also go up by five degrees.

The human body makes a very poor example because the heat output of a human body is not independent of the ambient temperature like that of a computer. Furthermore, your body tries to maintain a constant temperature at all times- i.e. if you go outside on a cold day your body will produce more heat in an attempt to keep your body temperature from dropping.

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rpm666

Weather affects my temps completely.

The computer can only be as cold as the room it's in.

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BradleyW

Simply, the hotter it is on your way to work, the hotter your PC will run when your playing crysis after tea time.

Same applies for when its colder on your way to work.

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TwoCables

Dude, it was just an analogy. I didn't say it was a perfect comparison.

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Syrillian

Note that the disparity between the variables is not linear.

For example, when it is 18C in my house, the CPU(s) will idle around 21C.
When it is 35C in my house, the CPU(s) will idle around 41C.

Additionally, the Delta (difference between idle temp and load temp) has a tendency to scale similarly.

Keeping the ambient temperature as cool as possible is a boon.

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jpz

That is quite interesting. Where is your air conditioner in relation to your computers? The only way I could see this happening was if there was a large temperature gradient in your room, with the CPU side/corner being a few degrees warmer than the side where your AC unit/thermometer is.

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