Hybrid Heatsink - new idea

[ed8150]

i was thinking about cooling more than 2 processors (ie a whole yatta monster) and i thought why not combine a water and air cooler to get the best of both worlds. you in the picture below it demonstrates such a heatsink. for 6 computers you perhaps have 2 pumps and divide the line in 3 parts and run a line through each heatsink. you aquire the quietest fan on the market and place on the heatsink. the two would act as backups for each other, and would enable overclocking on farms, but would not require large amounts of pumps going at once. the pros: cooling that enables overclocking for a large number of pcs simutaneously, less heat in air(depending where heat exchanger is for water cooling componet), lower energy and pump cost than totally watercooling solution, less chance of frying cpu due to heat; 1 system can keep the chip alive until human intervention is avaliable(perhaps digidocs rigged with alarms), more efficent cooling per dba, allowing ocing but also resonable noise levels. cons: more energy than pure fans, more costly too,i would have to mill the heatsinks myself(might be a good thing though to save on costs; but in anycase they are not commercially avaliable so far as i know) tba when i have a prototype built. here is an image of the proposed sink:
i would have to ask people reading this: you may use this idea for homeuse but may not sell it to others. i will patent/copyright/whatever this idea if it is feasible.

[CrazyBorne]

this is a great idea, but instead of one channel threw the bottom, i would try maybe like 4-5 3/8 channels?

[Inept]

It's been done.

[ed8150]

crazy-3-4 channels complicates things because you have to build and solder a converter box
inept- sources?

[Penguin4x4]

Simple Math:

:beer: :beer:

(Spir@l - Lexan top piece) soldered to the bottom of a CoolerMaster High Output Heatpipe Heatsink.


Just a thought. .16 C/W Heatsink with .13 C/W Waterblock. :D

[Inept]

No sources save to say that I've seen it with my eyes, not on the net. Someone I knew had drilled a hole through their Dragon Orb 3's copper center. He drilled a 9/16" hole, threaded it with a 3/8" NPT-18 tap (from both ends) and mounted 3/8" to 3/8" hose barbs in it and it worked modestly well.

I'm not exactly sure how it was done what with the pressfit ring of fins around the copper core, but much of the blue part of the Dragon Orb was saved and intact. It was a pretty good looking setup except for the stupid mounting mechanism on the DORB.

[MILLTHERM]

Problem I think would be that your case air is hotter than your waterblock which is bringing in a cooler medium from the outside ambient - My guess would that you would add a few C to the temp

just a thought

[ed8150]

i found one:
http://www.lostcircuits.com/advice/hybridcooling/
they dont do it properly though. in my system the water has first shot at the hottest part-that is directly above the core and the fan and milled heatsink tidy up. they use no fan, but merely stick a heatsink on top of the waterblock.

and penguin, what exactly are you trying to say? and how does it pertain to the subject?

[Penguin4x4]

Just and Idea for your waterblock

[cack01]

I know people have thought this up before, b/c I thought of it a long time ago as a fail safe measure to a pump failing. I think it could work, but it will not change temps at all. You want that water contacting as much surface area as possible. This is why we have the maze design and spiral design. Those are great for water and they make turbulance of course, but if you look at the area left for a heatsink to contact with there is very little, thus the heatsink would be doing almost nothing. It could work as a backup, but I'm not sure how fast it can soak the heat up from the water.

[macklin01]

I suppose the HSF could help cool the water somewhat before it leaves the "block", and reduce the overall water temp. But it might be nicer to put that outside the case and not raise the case temps.

I always wondered how well it might work to attach a peltier running at a modest temp gradient between the HSF and CPU. Not enough to turn freezing, but just enough to speed the transfer of heat from the CPU to the HSF, and concentrate more of the heat in the HSF where it belongs ...

Just a few random thoughts ... -- Paul

[strokeside]

If you drill the hole where you have it in the pic, you are greatly decreasing the path that the heat can go through from the contact area with the CPU die to the rest of the heatsink. You are limilting the amount of heat that can get away from the core. Now I know the water will take some of the heat, but with one straight line, you would get laminar flow, with low heat transfer rate. So the water is picking some heat and the heatsink is now picking up some heat. Unless you increase the number of water channels, you may see no difference at all.

[woodenman80]

I will see if i can find my hybrid block, its somewhere about it was a aluminium Heatsink designed to cool up to 1ghz (this is a fair time ago) in which consisted of an extruded aluminium base from 3dfxcool anodized blue which I cut a simple channel network into the bottom of and fixed a plate over the channels and proceeded to bolt down to the Heatsink with a gasket fitting in. Put to barbs in one end of the sinK. BTW they were supposed to be delicately threaded LOL my arse ended up with a goob of epoxy LOL. The it was my first attempt to do this and probably my last. The Cpu itself at the time was a duron 700 it ran on the normal sink aircooled at load 35ish if i remeber correctly and with the water cooling mod i was talking 32C not a great differance but about 5c cooler at idle. I think my biggest problem with it was it was a crappy aluminium Heatsink to start with and my pump was ancient aquatics probably pumping around 5 galons per hour with a constant grind. I used this setup until the pump siezed but the pc would still run at max temp of 40c not bad seeing as i cut loads of alu out :).
Give it a go but dont expect miricales.

Will try and rusle a pic

:) but it is my 22nd today so dont expect a miricale .... LOL