PROPER CPU COOLING! READ HERE!

Ham_fisT · Posted: Wed Aug 25, 2004 7:12 pm Post subject:

That would RULE!!

A full-on Stainless steel case, like a DeLorean

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Zero_Fresh · Posted: Wed Aug 25, 2004 7:34 pm Post subject:

I think thats exactly the reason you have not seen them too often or at all.

Another nice thing is keep the room of the computer cold. I have my computer in my room and I leave the AC all summer, 24/7 (Only cost 34 dollars to run it all year) and keep the room chilly. Comp temps stay really low when the room is cold and your airflow is set properly.
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Silicon Skum · Posted: Wed Aug 25, 2004 8:26 pm Post subject:

A stainless steel case, hmmmm that gives me an idea. :) stainless steel TIG welds would be nice............I sense a project, possible a MOD!

As for humidity and rusting of cases, you would need to live in the rain forrest to have enough water vapour to oxidise the metal to rust

, over a number of years a small amount of rust can form on a PC case, but this is ususally down to other contaminates (acids in your skin, salt residues, chemicals etc).

As for the cold room method, it's the best! Why else would server and mainfraim systems be housed in an air conditioned room?. I've worked in some that were so cold you had to put your coat on and you could see your breath on the air

Don't for get though, water cooling it TEN times more efficient at conducting heat than air!

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JayDubya · Posted: Wed Aug 25, 2004 8:55 pm Post subject:

[KoG]^weaZel · Posted: Thu Aug 26, 2004 11:01 am Post subject:

^^^^ I was thinking same thing !! hhhmmmm wood or stainless steel??
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ToggleHead · TWEAKGURU Joined: 03 Mar 2004 Posts: 4360 Location: Jersey

what about gummy bears.......they have good cooling properties.........???

perhaps some really stale pudding?
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JayDubya · Posted: Thu Aug 26, 2004 7:10 pm Post subject:

Only the most gooey ones, TH.

Price it out, Weaz. Maybe it would be worth it to build a stainless steel case if it looks good in the end. Wood would probably be easier to work with, though.
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Silicon Skum · Posted: Thu Aug 26, 2004 7:49 pm Post subject:

There is a guy I know, built a wooden case. Very nice, made it into a proper bit of furniture for his living room. you would'nt even know it was a computer. very nice! It used water cooling to keep the noise to a minimum. Wood is easy to work with, but it can easy look like crap if you are not experienced. Metal is harder to work with, but the results look better even if you make right bollock of it.

Stainless steel is a bit tricky to work with, tends to be more brittle than mild steel. looks good though.

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as4c · TweakNOOB Joined: 08 Sep 2004 Posts: 45

I know this post is about a year late but I think youd have to worry about the climate difference if you were to cool ducting from a fridge. Since the air inside the fridge is completely different you'd probobly have to worry about condensation inside your case. That just a hypothesis though. Does anyone have any info on this subject?
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ToggleHead · TWEAKGURU Joined: 03 Mar 2004 Posts: 4360 Location: Jersey

yes you ceratinly would have to worry about condensation.......there would be many more comps in fridges if you didnt....=P

water cooling is the way to go.......or...you know.....phase change
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Xal · Posted: Thu Sep 23, 2004 7:17 am Post subject:

GOO!!! ^ like TH

you can get arround condensation though. Fill the bottom of your case and your duct piping with silica and you should be ok. Wouldn't try it though.
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[KoG]^weaZel · Posted: Thu Sep 23, 2004 11:08 am Post subject:

also the fridge wouldnt be able cool enough air for this to work. The fans used would move more air than the fridge could actually cool. If you were looking to do something of this sort you would want to use one of the portable AC units, the kind that you can roll from room to room. But the amount of money and time that would be invested in this you could also build a VaporChill set-up.
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chef · TweakNOOB Joined: 18 Feb 2004 Posts: 187

^^^^^ True. Refrigerators aren't really designed to remove that much heat. If I remember what my engineering friends told me, they are really only designed to keep a somewhat constant temp (+/- 3 deg C).

As for the case mod, I wonder how diamond plate would look. You know, that stuff they use for making stairs and what not. Might be expensive as hell though unless you had your own acetyline torch to do the fab work yourself.

JayDubya · Posted: Thu Sep 23, 2004 5:04 pm Post subject:

A 4 1/2in or better grinder works pretty well for cutting diamond plating. It is also alot easier and safer to use than a torch for most.

I hear you on the fridge thing. Vapochill would be teh way to go.
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Silicon Skum · Posted: Thu Sep 23, 2004 5:33 pm Post subject:

Well, I used a small fridge with a small freezer section in the top (the evaporator cooled bot the fridge and made up the freezer section) to cool a CPU water block on 2 machines. I used it to cool down a tank of water / antifreeze in the fridge and the freezer had a had about 7ft of 9mm coper pipe coiled up inside. worked VERY well. The pipes that left the fridge and ran to my comps would freeze over solid with about 1 or 2 inches of ice. I modded the thermostat to keep the fridge running at a 75% duty time compared to the standard 50%. I allowed the freezer section to ice up over the pipes, this is what made the unit work so well, even when the compressor was not operating it still had a large amount of ice in reserve to chill the pipe system. I did operate the compressor at 100% duty time, but I did'nt find any real benifit, only a high electric bill.

For coolinga air, a fridge is no use, but to cool a water cooling system, it can work very well. Mine was an old Russian made CFC filled fridge, I'm not sure about how well a modern energy efficient fridge would cope with all that extra heat.

I still have the fridge and I'm going to be using it again soon to super cool my AMD 3200+ xp. Should be interesting.

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chef · TweakNOOB Joined: 18 Feb 2004 Posts: 187

I'll have to check out some flea markets for an old fridge. Now I can tell my engineer friends that it's possible to use a fridge! They hate when a biologist tells 'em they're possibly wrong. But of course they'll probably debate the superior cooling capacity of CFC's.

Xal · Posted: Fri Sep 24, 2004 6:57 am Post subject:

You could use a fridge for air cooling too if you use a piping system. Using 3-5m of 4" copper piping coiled in the deepfreeze. you let it suck air from outside the fridge, through your coil then from the coil into your case, if the tubing ices up a bit it will drop your air temp substantialy, but not enough for condensation to become a worry. My 2/= (ugandan shillings)
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Silicon Skum · Posted: Fri Sep 24, 2004 11:17 am Post subject:

^^^ he's right, All the water vapour in the air would condense inside the pipe in the freezer. the air flowing into the PC would be cold and very dry.
Only probs are that the pipe will block with ice over time, the PC will still be in warm moist air, so any exposed cool suface will begin to condense water vapour from the air. As long as there was a drip tray where the ducting enters the case you will be fine (the rest of the system will be hotter and will not condense any water, just the ducting).

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Xal · Posted: Mon Sep 27, 2004 3:12 am Post subject:

^^ exactly
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Custom case

Maxsaint · Posted: Mon Nov 15, 2004 10:05 pm Post subject:

hey can any one yeah u tooglehead can u give me a link or tell me how to install fans for proper air flow ... yeah i know it differs from case to case and CPU so why dont u tell me about a general caseing Mid ATX tower with my specs on. i really appreciate that...

or any one tooglehead is not the only one here with great expreince well i asked him because he is from NJ and i am from there so may be he can show me really how to do it.
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JayDubya · Posted: Mon Nov 15, 2004 10:10 pm Post subject:

http://www.tweaknews.net/forum/viewtopic.php?t=3987

There is some great information there. I think its best to draw air from the front and bottom and exhaust it to the top and back. Always have more CFM exhausting out than coming in.
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Ham_fisT · Posted: Mon Nov 15, 2004 10:18 pm Post subject:

well the general rule is to have slightly more exhaust than intake,wfith intake in the lower front, and exhaust in the upper rear portion.

a side intake blowing right over the AGP is nice, and a blowhole in the top exhausting warm air that gathers above the PSU is almost always helpful.

My case has 2 80mm intake, 2 80mm exhaust a side intake, and a top exhaust(not counting 2 80mm's in the PSU) I get GREAT airflow, but it is kinda noisy, big 120mm fans are quieter, and move just as much, if not more air than the 2 X 80MM config.

BTW...my case temp is ALWAYS 4*C above ambient room temp
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Joseph17 · TweakNOOB Joined: 13 Dec 2004 Posts: 3

My pc is a bit hot by i already thought about using liquid CO2 that i have from my paintball gun. Hahaha.
What do u guys recommend for cooling a pc??
In my opinion water cooling sucks.
What do u think about water cooling??

C ya around
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Josh · Posted: Mon Dec 13, 2004 7:16 pm Post subject:

Silicon Skum · Posted: Mon Dec 13, 2004 10:07 pm Post subject:

Water cooling is good on keeping heat levels down, it's 10 times more efficient at cooling than air cooling. fairly essential for large overclocks.
It can also work VERY good in combination with Peltier heat pumps (thermoelectric cooling), in fact for Peltiers you will NEED water cooling as heatsinks will not be able to dissapate the heat fast enough.

It all depends on what you want to do with your system, MOST of my high end overclocked computers are cooled by water or water / Peltier cooling setups, the rest are on standard HSF setup.

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