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Thread: [Review] Indigo Xtreme vs. AS5, MX-2, IC Diamond, Shin-Etsu X23-7783D

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  1. #1
    Tyler Durden
    Join Date
    Oct 2003
    Location
    Massachusetts, USA
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    My guess is that the heat caused the water to move away from the block and the pump, sort of boiled in there which caused the impeller to start dry.

    Temps are fine now, for an H50. Load at 4.0GHz 1.425v on my PHII 965 is 52c prime blend. The H50 is fairly limited in terms of it's heat capacity.

    If you're going to do this, I recommend leaving the pump running, fan off for the first 30 seconds, then turn the pump off until it hits 80c, then pump back on. The point being, don't let the pump sit there at 80c for too long. Then leave it going for another minute with just the pump on. Should be enough for proper flow.
    Formerly XIP, now just P.

  2. #2
    Xtreme Addict
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    Quote Originally Posted by EnJoY View Post
    My guess is that the heat caused the water to move away from the block and the pump, sort of boiled in there which caused the impeller to start dry.

    Temps are fine now, for an H50. Load at 4.0GHz 1.425v on my PHII 965 is 52c prime blend. The H50 is fairly limited in terms of it's heat capacity.

    If you're going to do this, I recommend leaving the pump running, fan off for the first 30 seconds, then turn the pump off until it hits 80c, then pump back on. The point being, don't let the pump sit there at 80c for too long. Then leave it going for another minute with just the pump on. Should be enough for proper flow.
    Once the re-flow temperature is reached (~80C) a liquid-cooled system does not need more than about 30 seconds to finish the re-flow before you can turn the pump back on. There should be no damage that occurs at that time. Not to mention that for the water to start boiling in the pump it's temperature actually needs to hit 100C. Contact surfaces should do this much sooner than the temperature of the water actually increases anywhere near the 100C mark.

  3. #3
    Tyler Durden
    Join Date
    Oct 2003
    Location
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    Quote Originally Posted by dejanh View Post
    Once the re-flow temperature is reached (~80C) a liquid-cooled system does not need more than about 30 seconds to finish the re-flow before you can turn the pump back on. There should be no damage that occurs at that time. Not to mention that for the water to start boiling in the pump it's temperature actually needs to hit 100C. Contact surfaces should do this much sooner than the temperature of the water actually increases anywhere near the 100C mark.
    Yes, I understand the water wasn't actually boiling (I understand boiling points), I'm really not sure what, if anything may have occured. In a normal watercooled system, there would be no issues. However in my H50, where the pump is right on top of the waterblock, things are different.
    Formerly XIP, now just P.

  4. #4
    Xtreme Addict
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    May 2004
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    1,821
    Quote Originally Posted by EnJoY View Post
    My guess is that the heat caused the water to move away from the block and the pump, sort of boiled in there which caused the impeller to start dry.

    Temps are fine now, for an H50. Load at 4.0GHz 1.425v on my PHII 965 is 52c prime blend. The H50 is fairly limited in terms of it's heat capacity.

    If you're going to do this, I recommend leaving the pump running, fan off for the first 30 seconds, then turn the pump off until it hits 80c, then pump back on. The point being, don't let the pump sit there at 80c for too long. Then leave it going for another minute with just the pump on. Should be enough for proper flow.
    Thanks for the pointers. I will be trying the tim over the weekend. Along with my GT 1850 fans, I should see some nice drops.
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