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Watercooling Pump Recommendations

Need a pump for my future loop, I was told to get this : http://www.frozencpu.com/products/14961/ex-pmp-

But it doesn't seem to be in stock anywhere, so If you guys could recommend a pump from this site/list http://www.performance-pcs.com/pumps?limit=90

that would be awesome, needs to be that site as I am importing a large amount of my loop and am getting it all from 1 site to save on packing and import tax.

Loop will consist of a EK X3 250 res, 2 30mm 480 rads, 1 30mm 240 rad, an EK CPU block and 2 or 3 GPU blocks, (390X's) more than likely 2 but its going in a 4k build so maybe 3.
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  1. Best answer
    Just pick up two MCP35X from Swiftech then. Get you the same effect, and for slightly less money. (I think the standalone MCP355 and MCP350 are 3/8 barb fitttings, MCP35X has the g1/4 thread for the fittings of your choice.

    I use a the H240-X mounted MCP35X and it keeps my CPU and Two 980s comfortably cool through a 30x280mm and 45x120mm radiator.
  2. was thinking more head pressure, to get through 3 rads and 3-4 blocks, and going hard tubing so need one that I can change the fitting on :P going with primochill 1/2 inch with their revolver fittings.
  3. do I even need a dual pump with this loop, or could I just get a strong single pump?
  4. Any Laing re-branded D5 pump is going to be my recommendation.
  5. maddogfargo said:
    Any Laing re-branded D5 pump is going to be my recommendation.


    This is pretty much my recommendation. Cant go too wrong with a D5.
  6. are D5's strong enough? or would I need two in parallel?
  7. If you ran your GPU's in parallel, a single pump would be fine.
  8. manofchalk said:
    If you ran your GPU's in parallel, a single pump would be fine.


    I wasn't planning on running the GPU's parallel actually, are there benefits either way?
  9. Blocks in Parallel offer dramatically lower flow resistance (for two blocks, half the resistance of a single block) compared to the same blocks in Series, for the tradeoff that each card only receives a fraction of the overall flow rate (each block will receive "1/number of blocks in parallel" the flow rate). So basically Parallel is better unless you have so many blocks that the water is being split too many ways, which isnt a problem in your situation as you would need a lot of cards to achieve that.

    This is the best testing I know of on the subject.
    https://dragonsgaming.wordpress.com/2011/04/06/water-cooling-video-cards/
  10. D5 is a great pump. Plenty of power for block restriction. They come in speed adjustable and PWM models and there are lots of pump mods/housings for them.

    I have mine cooling a CPU, Chipset and VRM block on my ASUS Sabertooth 990FX board with an Alphacool 480 UT 60mm thick rad. Flow is good even on lower RPMs for silent pump.
  11. manofchalk said:
    Blocks in Parallel offer dramatically lower flow resistance (for two blocks, half the resistance of a single block) compared to the same blocks in Series, for the tradeoff that each card only receives a fraction of the overall flow rate (each block will receive "1/number of blocks in parallel" the flow rate). So basically Parallel is better unless you have so many blocks that the water is being split too many ways, which isnt a problem in your situation as you would need a lot of cards to achieve that.

    This is the best testing I know of on the subject.
    https://dragonsgaming.wordpress.com/2011/04/06/water-cooling-video-cards/


    Very informative, however looking at that, I do't think I can run parallel as I need the coolant to come out of the top of the highest GPU to another rad and a CPU block, not doing a dual loop system. Mainly due to space, no way can I fit two res's in my setup :(
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