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Quick Question. Heat dissipation? (appropriate cooling method)

post #1 of 28
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My friend has an average build which I will discuss later. Recently his temps have been around 45 idle and 60 load. His room gets extremely hot and his parents aren't happy. I was looking for a cooling method for this guy. He is new to over-clocking so you can imagine his fright with water cooling. Seeing as I have only gotten into it recently myself, there isn't much I can say. Basically I'm asking, what sort of cooling to use. I post it here because I'm biased towards water, as if the heat dissipating from the rads is not going to be as "hot" as from a heatsink. Psh, alright so I don't know much about phsycis, big deal and heat.

System:
Antec 902 with extremely messy cable (I promised him I'd come over and help him manage cables)
i5 750 stock
Evga p55 sli le
some generic ram (gskill I think)
9800 gtx
Some psu thats completely unncessary for his build
Artic Cooling Freezer 7 Pro

SO my question being, what type of cooling will not make his room so hot. His ambients are low, like 75f but his cpu heats up his a lot higher. Will water (which absorbs the heat from the block and travels through the loop till air pushes through it and cools it down) will the heat some how be Less than from air cooling. I know the only true way to actually decrease the heat is from a slushbox/DICE/Refrigeration module/Phase/LN2

His budget for whatever type of cooling is about $150. I was thinking of the xspc rasa rs 240, plenty for cpu only. Could cable management be the problem? Should he reseat his current cpu cooler?

Alternative would be something like the Noctua NHD-14/Cogage/TRUE or an AIO (highly against) H60/H70 from corsair.

so what should he do?
     
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post #2 of 28
Well i can tell you befor i added my 5970 to my loop running a i7 930@4300 and a 5870 on 1 rx360 my room stayed pretty cool the heat coming out of my rad waset all that bad. Now adding a 5970 to my loop it can push some insane amount of heat out but i do also run boinc/fold on my gpus. If he does not fold on his cpu or gpu the water setup should really cool his room down alot.
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post #3 of 28
Quote:
Originally Posted by Spykerv View Post
SO my question being, what type of cooling will not make his room so hot.
Nothing. 1st law of thermodynamics. The only way to reduce heat output is to choose lower power consuming components or underclock. (Ok you could find a way to vent heat out the room via a duct or something but that is very impractical and unsightly)
Edited by aldfig0 - 4/4/11 at 10:44pm
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post #4 of 28
Don't he have windows?
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post #5 of 28
Quote:
Originally Posted by aldfig0 View Post
Nothing.
not true poor air cooling will heat up a room fast cause the heat just keeps building up over time and to combat it you need to turn the ac temps down or open more windows. Water cooling seems to handle high ambs much better my rooms been 80f and still my max temps on my gpus never hit over 45c for 3 5870s at 100% load on each.
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post #6 of 28
Quote:
Originally Posted by aldfig0 View Post
Nothing.
^this.

water or air, your still displacing heat to air. Be it thru water or metal, the same heat needs to be transfered to the air.

the advantage of water is that it can keep your temps lower so it wont heat up as fast, but it will still effect the ambient temps. The only true way to displace heat is to put the radiator outside the house. thru a window. but then you run into the problem of ambient air. as the ambient air can be warmer outside then inside, your temps will be high.

there is not much you can do. wish there was better news.
post #7 of 28
Small room syndrome?
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post #8 of 28
Conventional wisdom for air cooling suggests the heat will need to be removed from the case to outside (eg your friend's room). Water cooling will help moderate the amount of heat that is generated but there will be some present.

Adequate room ventillation is advised from both a PC cooling perspective and a creature comfort point of view. This may also be a factor in his high temps = high ambients.

Ceiling fans, pedistal fans, A/C and open windows are the the key here.
post #9 of 28
Quote:
Originally Posted by aldfig0 View Post
Nothing. 1st law of thermodynamics. The only way to reduce heat output is to choose lower power consuming components or underclock. (Ok you could find a way to vent heat out the room via a duct or something but that is very impractical and unsightly)
This ^.

Simply put, air cooling or water cooling is just a means to transfer the heat from the source to its ambient (ie the room). Ultimately, all the heat is still dumped into the room, raising its temperature.

3 suggestions:-
1. Enable all the energy saving features of the system/CPU.
2. Modern graphics card can downclock itself while at idle state. Eg my GTX570 has 3 clocks (3D/2D/idle). The idle speed is only 51Mhz.
3. I would suggest investigating the possibility of using a duct system to vent heat out of the room through a window.
post #10 of 28
The only amount of energy that will not be released immediately into the room with water cooling is the heat utilized to raise the temperature of the water. After a little while though, both air and water cooling will release the same amount of energy into the room. Also, after the computer is turned off, the heat used in raising the water temeprature will have to be dissipated. In the end, the same amount of enery heats the room.
 
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