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12-13-2008, 05:03 AM
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#1 |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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Water cooled PSU
To start, a disclaimer.
A water cooled power supply for a computer is a very dangerous idea. How dangerous is up to the designer, and the user. To cover my ass, DON"T attempt this unless you REALLY know what you are doing!!!! But how do you know what you are doing? I don't know the answer, if you don't know the answer, then a quiet fan cooled psu is for you. So this is for all those who asked. Sorry I don't have more pics. The psu I used was an Enhance 500 watt psu. specs Enhance are the OEM manufacturer for some of the Coolermasters, Zalmans and silverstones. Not quite Seasonic quality, but not far behind. In hindsight I should have used a seasonic. anyway... I replaced the mosfet and diode heatsinks with copper plate, and used the middle horizontal plate to cool the transformer. I still use a fan, not shown in the pics, mounted on the outside of the PSU lid, at low rpm to cool everything else. Caps were also replaced, again not shown in pics, with Panasonics, nichicons and elnas. Output inductors are also cooled, with silicon washer on either side for insulation. The pcb layout has the switching mosfets heatsink connected to the B+ rail along with the drain leg of the mosfets, so I did away with the heatsink connection and am running the mosfets insulated with mica washers. The waterblock assembly is grounded, and I've run 1000volt leakage tests in both directions just to be sure (1000v from the a/n to PE, and 1000v from PE to the a/n) and I can't measure any leakage with the trusty fluke. I'm also using a pair of 50 deg c thermal switches, one to the control IC (existing in Enhances design) and the other I've added to the power on (green wire of 24pin connector) so if I loose water flow and the assembly does hit 50 degrees, it will power off. When I first tested the psu after adding the water block, I ran it with no water and it didn't get really hot running a low powered AMD system, prolly 30 deg over ambient. The copper assembly I made has the 1/2" copper pipe milled open on one face so that the coolant is actually in contact with the vertical copper plates. Its coolant | copper plate, not coolant | copper pipe | solder |copper plate. The assembly is held together with 60/40 solder. It was pressure tested to 140 psi (my mains water pressure) for one week with no signs of leaks. I've plans, as part of a current build, to replace the hose barbs with compression fittings. Since I can't heat the assembly, I'll be making custom compression fitting to flare assemblies with a high flow 90 degree in them. Hope this has given some inspiration to someone. JUST be damned careful. Make sure you run the psu with an earth leakage detector. And for anyone who wishes to complain or whine, FFS this is an extreme cooling forum, not a pussy, assemble it all in 10 minutes zalman resonator forum.         
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12-13-2008, 05:57 AM
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#2 |
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Voice of Wisdom
Join Date: Nov 2008
Location: where 35C ambients is normal
Posts: 1,708
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very nice work link.
am sure somebody/ies here would also like or be requesting you to mod their respective PSUs too... at least here we know nobody dumb enough to dunk the whole PSU in water... unless otherwise special immersion style... |
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12-13-2008, 06:05 AM
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#3 | |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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Quote:
I've thought about an oil immersion design, there are transformer oils with crazy 100kV per mm insulation capabilities that are non flammable and safe. PSU, oil, a radiator and fans in an enclosure thats sealed wouldn't be too bad. Hard part is the electrical connections. Hard, not impossible Last edited by link1896; 12-13-2008 at 05:24 PM. |
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12-13-2008, 07:54 AM
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#4 |
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The RealRedRaider
Join Date: Nov 2008
Location: The Lone Star State
Posts: 4,868
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I love want you did... Many thanks for sharing it here...
 Now that is Extreme to the max... 
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. HARDWARE 920 - D0 (3846B077) ** eVGA Classified (#0073) ** Dominator GT 1866 (3 x 2 GB) ** SilverStone ZM1200 PSU ** 2x Meanwell S-150-24 ** Meanwell S-320-12 ** 1x WD RE3 1TB (storage) ** AC Aquaero VFD - (red) ** mCubed BigNG ** mCubed MiniNG ** 8x mCubed FanAmps Pioneer 60" Plasma (KURO) COOLING 2x Iwaki RD30 ** 2x EK 400 Res ** 2x PA120.4 / 3x PA120.3 / 17 x SanAce H1011 ** Tygon B-44-4X / Tygon R-3400 ** BitsPower Compressions - (1/2" x 3/4") ** BitsPower Rotary Q / L / 45 Fittings Nikon D90 Nikkor 70-300mm f/4.5-5.6G IF-ED AF-S VR Nikkor 16-85mm f/3.5-5.6G ED VR AF-S DX Nikkor SB-600 MountainMods Extended Ascension / Pedestal 24 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
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03-06-2009, 12:38 AM
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#5 |
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BIG DEAL ... small pkg
Join Date: Nov 2008
Location: ▂ ▃ ▅ ▆ ▇
Posts: 912
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Seriously... this is pretty dang cool of a mod if you ask me!
Would be a fun experiment....
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03-06-2009, 01:42 AM
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#6 |
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Semi-Liquid
Join Date: Dec 2008
Posts: 348
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mods like this always make me post...
awesome work! |
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03-06-2009, 03:12 AM
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#7 |
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Wet DownUnder
Join Date: Nov 2008
Location: United States of Australia
Posts: 2,242
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I like how you kept the barbs inside the case... KoolKRAPKoolKRAPKoolKRAPKoolKRAPKoolKRAPKoolKRAPKoolKRAPKoolKRAP could take a look at this
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03-06-2009, 07:49 PM
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#8 |
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Wet DownUnder
Join Date: Nov 2008
Location: United States of Australia
Posts: 2,242
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Your post got me thinking...
I need a powerful low profile PSU for my mini-ITX build and it looks like theres lots of spare room in the psu once the fan is gone which will get it under my 60mm height restriction.  could I just connect a HDD cooler to the heatsinks like this?  still not low enough tho... im gona need to find another way
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03-06-2009, 07:55 PM
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#9 | |
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Semi-Liquid
Join Date: Jan 2009
Location: Fort Worth, Texas
Posts: 139
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very handy of you there. Now onto the next challenge, hook it up to a phase change.
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Quote:
Phenom II 940 @3.7Ghz OCZ Platinum DDR2 800 ATI HD4850 Crossfire Corsair 520HX PSU Lian Li V2000 Plus 2 Case |
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03-06-2009, 10:01 PM
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#10 |
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Ancalagon the Black
Join Date: Nov 2008
Location: Tuscaloosa, AL
Posts: 1,262
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I'm stripping one out as we speak, I'm gonna do such BAD things to it...
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03-06-2009, 10:29 PM
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#11 | |
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Liquid Physicist
Join Date: Dec 2008
Location: Springfield, VA USA
Posts: 548
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Quote:
rubidium |
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03-06-2009, 11:07 PM
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#12 |
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True North Strong & Free
Join Date: Nov 2008
Location: Canuckistan
Posts: 1,435
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Very nice!
This design allows the PSU to be added to a loop.
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03-13-2009, 06:19 AM
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#13 | |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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sadly no.
Two things, the effective contact area between the existing black heatsinks and the water block is too small, and the pcb still needs some air flow. Design it from the ground up, or find a quiet enough fan based psu. Quote:
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Involuntary electroshock therapy is a crime. It *might* cure depression, but the side effects are immense. |
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03-13-2009, 06:21 AM
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#14 | |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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Quote:
I like your ability to express yourself technically so well
__________________
Involuntary electroshock therapy is a crime. It *might* cure depression, but the side effects are immense. |
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05-02-2009, 11:33 PM
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#15 |
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WeakSauce
Join Date: Jan 2009
Posts: 10
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That looks awesome. It would be nice to have one with about 1200 watts. I get tired of hearing that noisy fan in mine.
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05-03-2009, 01:05 AM
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#16 |
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-
Join Date: Jan 2009
Posts: 1,378
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wow i just saw this thread, i love the pipe
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05-03-2009, 05:31 AM
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#17 |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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If i ever stop working 90 hour weeks I just might start making modded >1kw psu's with water cooling
.
__________________
Involuntary electroshock therapy is a crime. It *might* cure depression, but the side effects are immense. |
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05-03-2009, 08:31 AM
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#18 |
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Liquid Physicist
Join Date: Dec 2008
Location: Springfield, VA USA
Posts: 548
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What's the latest on your WC PSU work?
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05-03-2009, 10:08 AM
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#19 |
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RRR Addict
Join Date: Apr 2009
Posts: 616
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do a enermax revo/evo those are the best of the best
corsiar hx1000=  vs the enermax revo/evoi liked what you did i wonder what psu that it is |
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05-03-2009, 02:10 PM
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#20 |
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Does This Taste Funny
Join Date: Nov 2008
Location: Templeton MA
Posts: 1,093
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Thats some awsome fucking work you did there and is something I can say that I wont be doing. You are one extreme dude....
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05-04-2009, 05:46 AM
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#21 | |
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electricity & H20 do mix
Join Date: Nov 2008
Location: Melbourne, Australia
Posts: 171
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Quote:
__________________
Involuntary electroshock therapy is a crime. It *might* cure depression, but the side effects are immense. |
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05-04-2009, 06:19 AM
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#22 | |
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Uses a 40 dollar mouse ;)
Join Date: Mar 2009
Location: Detroit, MI
Posts: 2,330
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Quote:
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