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Help with Designing a cooling system

post #1 of 8
Thread Starter 
Hello guys,

This thread is about designing a heat-pipe cooling system for my 100W server. Hopefully what I had in mind is doable and useful for cooling any Mini-PC.

The idea is to do a cooling system laptop-style: from one radiator that is cooled by a fan, multiple heat-pipes lgather the heat from: CPU, Chipset and eventually graphic(s) card(s).

Toolkit:


  1. The pads that stick to the heat-sources - It would be nice to make them myself, but this is not the purpose of this build.
    • The CPU - Seeing my build is AM2, I thought of buying an Arctic Freezer 64 Pro and dismantle it for parts: on one hand I need the AM2 pad, on the other I need the radiator (see 2); the A64's heat-pipes would remain unused.
    • The chipset - To keep it simple I've decided to get an nForce 8300 style mobo because it has only one chip to cool, but what are the heat-piped chipset coolers that fit onto 8200/8300 mobos?
    • VID card(s) - for the moment I don't plan adding a graphic card, but tomorrow who knows? What would be a couple of heat-pipe cooling system or nowadays graphic cards (to strip them of their pads)?
  2. The radiator that is to be cooled by a silent Noctua fan will come from the A64 Pro
  3. The heat-pipes - I found a company nearby that manufactures heat-pipes and I'm going tomorrow to check it out. They make heat-pipes they say can transfer up to 25W which is pretty cool. The only essential thing is that they must fit the pads and the radiator.
Questions now, what do you think? (rant accepted)

What coolers would you use as a base for dismemberment?

Would you rather do it with watercooling? In this case do you know if a loop without reservoir can work, weather there are max 1inch think 120mm/140mm radiators and what would be the minimum flow of a pump if it has to cool around 100W?


Thanks for reading, looking forward for ideas.
Edited by dragosmp - 8/21/08 at 8:15am
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post #2 of 8
Quote:
Originally Posted by dragosmp View Post
Would you rather do it with watercooling? In this case do you know if a loop without reservoir can work, weather there are max 1inch think 120mm/140mm radiators and what would be the minimum flow of a pump if it has to cool around 100W?


Thanks for reading, looking forward for ideas.
Yes, i'll do your possible watercooling setup.

Yes you can have a loop without a reservoir, but Swiftech makes a micro res that will fit almost anywhere. A res just allows for easier filling/bleeding and some extra heat dissipation. Costs $20

A low-end to middle-of-the-road 120mm radiator would probably be ok for around 100w as long as you had good fans. Expect to spend $35-$60 on that.

I wouldn't get a pump lower than 500lph. You always want more than you need so you dont stress your hardware. Expect to spend $45+ for a decent pump that wont die in a month.

You can get a decent Danger Den cooling block for about $45.

Stay away from mixing copper/aluminium and stay away from pre-built kits.

Estimate:

Pump: $45
Rad: $45
Reservoir: $20
Block: $45
Tubing: $12
Coolant: $15
Fittings $15
Fans: $20

Total: approx $220
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post #3 of 8
What case are you using? You won't need that much cooling anyways.

My HTPC uses around 140w full loaded. I have a 92mm fan on my Zalman HS running at 600RPM, 80mm fan running at 600RPM, and the EarthWatts 80mm PSU fan.

In your build, a single 120mm fan at 600-800RPM will be enough to cool everything. Watercooling would be pointless since your pump would generate almost as much heat as your underclocked CPU and northbridge combined!
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by Slider46 View Post
Yes, i'll do your possible watercooling setup.

Yes you can have a loop without a reservoir, but Swiftech makes a micro res that will fit almost anywhere. A res just allows for easier filling/bleeding and some extra heat dissipation. Costs $20

A low-end to middle-of-the-road 120mm radiator would probably be ok for around 100w as long as you had good fans. Expect to spend $35-$60 on that.

I wouldn't get a pump lower than 500lph. You always want more than you need so you dont stress your hardware. Expect to spend $45+ for a decent pump that wont die in a month.

You can get a decent Danger Den cooling block for about $45.

Stay away from mixing copper/aluminium and stay away from pre-built kits.

Estimate:

Pump: $45
Rad: $45
Reservoir: $20
Block: $45
Tubing: $12
Coolant: $15
Fittings $15
Fans: $20

Total: approx $220
Thanks for the estimate and the ideas, I'll search for components and decide afterwards if it's gonna be water.


Quote:
Originally Posted by DuckieHo View Post
What case are you using? You won't need that much cooling anyways.

My HTPC uses around 140w full loaded. I have a 92mm fan on my Zalman HS running at 600RPM, 80mm fan running at 600RPM, and the EarthWatts 80mm PSU fan.

In your build, a single 120mm fan at 600-800RPM will be enough to cool everything. Watercooling would be pointless since your pump would generate almost as much heat as your underclocked CPU and northbridge combined!
I'm using a square-shaped pyramid... probably you weren't expecting this. The problem is no matter what I do there is a huge heat-bag near the top of the case, and weather I have a low-power CPU underclocked or an OCed Phenom, all that changes is the time until the mobo shots down due to overheating. The position face-up of the mobo makes it difficult to cool the components especially with the ATX plug on the middle of the mobo and airflow.

With pads + heatpipes + radiator/fan I was thinking of sending the heat up the cone and put the fan to exhaust towards the top. If the water can pot the calories up the cone, it's fine also, but it would be nicer without moving fluids.
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post #5 of 8
Can you post a pic or diagram? I'm sure we can think of something.
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post #6 of 8
Thread Starter 
I've tried doing it from slashes and symbols, but it just looks bad. I'll make a powerpoint as soon as I have a little spare time, thanks for the interest.
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post #7 of 8
Quote:
Originally Posted by dragosmp View Post
I've tried doing it from slashes and symbols, but it just looks bad. I'll make a powerpoint as soon as I have a little spare time, thanks for the interest.
How about MS Paint or Google SketchUp?
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post #8 of 8
Thread Starter 
Hey, paint is a good idea, here's a section:


With the arrow the air enters and is taken by a 80mm fan directly to the CPU heatsink and to some extent onto the PSU radiators. The chipset fan and half of the PSU rads don't get direct cooling, and right on the other side of the CPU fan there's the ATX connector (I have much better figures in the link in the sig).

...I'm seriously thinking watercooling now, it's kinda cool.
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