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Water Cooling for X1900 cards

Discussion in 'Overclocking & Cooling' started by barney, 24 May 2006.

  1. barney


    Joined: 22 Mar 2006

    Posts: 260

    Location: Kent

    Built my new system a couple of months ago and its running fine but the noise is starting to annoy me (case is full of fans atm).

    I want to get phase cooling for the CPU and im looking into that now but i will also want to water cool the two X1900 cards (crossfire setup) Need to cool the GPU and the Voltage regulator.

    Have any of you got any good suggestions on where to get started. I know the basics but have zero practical experience with water cooling or phase cooling and im really worried about destroying my hardware :)

    For watercooling what effects the performance? im guessing:

    Larger Res=more water=cooler
    Larger Rad=cooler
    Larger bore pipes=more water flow=cooler
    Larger/higher output pump=more water flow=cooler

    anything im missing there?

    I know there are a million thread on here already asking similar questions and im reading through them all at the moment. Like i said though im really worried about screwing it up and blowing up a lot of expensive kit :)
  2. HeadlessChicken

    Wise Guy

    Joined: 6 Aug 2004

    Posts: 2,163

    Location: Norwich

    Cooling the voltage regulators as well will be difficult, and those full cover blocks are usually not worth it. You might be better just cooling the cores with say MP1's, and get a quiet 120mm fan over the voltage regs (cooling the core will also dissiparte some of the heat from the vr's too)

    Hope that helps :)
  3. barney


    Joined: 22 Mar 2006

    Posts: 260

    Location: Kent

    thats brilliant thanks. I have read a lot of threads and information about water cooling but couldnt really find any info on what effect changing each component in a WC setup would make. Your answer helps a lot :)
  4. andyr

    Wise Guy

    Joined: 12 Feb 2004

    Posts: 1,907

    Location: Stoke

    Danger den Tyee Gpu coolers you can get them with composite cooler for x fire master card and add on voltage regulator coolers
  5. ted34

    Wise Guy

    Joined: 5 Jul 2005

    Posts: 1,738

    Location: Edinburgh

    Dangerden do full cover blocks but they are nearly £90 each and the cover bits are just heat sinks. Full cover blocks generally kill the flow rate. If your just cooling 2 gpu's then thats not too much of a prob but id go for 2 maze 4 with a set of ram sinks and then just have a silent 120mm fan blowing over whole card. That will also help create airflow in your case as theres still the chipset and mofsets.
    Your right about everything in first post though. Stick to 1/2" tubing, go for a higher flow rate pump such as eheim 1250 rather than 1048, if you can fit a 120.3 rad in your system and can afford the extra £10 then go for it.

    Havin a larger res will make very little diff as heat isnt going to be lost when the water is sat in a reservoir unless its one of the special ones with heatsinks on and even then compared to the rad it wont make much diff. Nearly all heat is discharged in the rad so the size of the rad makes the big diff
    Last edited: 24 May 2006