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Thread: My Laing DDC-3.2 is dead

  1. #26
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    Seeing those pics, I do think it might be heat which killed it because you put it on the surface without any free space for air to pass.

  2. #27
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    you think i should use a fan mounted to it next time
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  3. #28
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    Sad part is, it could be that or it could be just plain old bad one got through Q/A. Even if it runs for a bit of time, that's not a guarantee that it's not just a bad one.

    However, I do think heat doesn't do them any good. I just think for heat to kill it (that is an aluminum surface it's on so it should act like a heatsink to some degree) that more time is likely to pass before death on a "normal" pump that has a heat problem.

    Do you run this machine 24/7? Presumably that is a "yes" because it died while you were sleeping, but I'm curious if that was a one time event or if it's what you do regularly.

  4. #29
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    No, i usually shut it off when i go to sleep.
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    • Water Pump : Laing DDC-3.2 w/XSPC Top

  5. #30
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    Well in the ever developing "weird science" of water cooling the item below seems to be the popular method of raising the pump up in a situation like yours.

    http://www.petrastechshop.com/u3gpubrflad5.html

  6. #31
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    Evil from his "homewrecker" build has a good idea to cool a Laing DDC pump.
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    • Water Pump : Laing DDC-3.2 w/XSPC Top

  7. #32
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    check for any internal leaks.
    I had a small one when I installed petra's top on mine.
    You woudn't notice a small internal leak since your was hardmounted to the case.
    My pump came with little rubber pads to avoid vibration and it helps to keep some airflow under the pump.
    Sorry for yours, mine is running like a champ for almost one year.
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  8. #33
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    yeah waterlogged called it, looks like the leak and heat killed it.
    I was going to just drop my ddc on some petras gel stuff, but realised now i may just mount in 4 long screws
    and do something like that.i noticed my D5 never got hot though
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  9. #34
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    I like the gel type materials, however in order to stop heat being an issue I split the gel into 2 pieces and used some Alu sheet cut to size to make "ears", so the pump is above air.

    C'est ca:

  10. #35
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    I think the D5 dumps more of it's heat into the water...

    Still, time to mourn a pump deceased

  11. #36
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    Quote Originally Posted by mpower1001 View Post
    i thought maybe it was the power supply because we had a nasty storm
    Do you have a battery backup? i have seen powersurges do strange things and its entirely possible that one took out youre pump leaving the rest untouched.
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  12. #37
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    You can make that two pumps dead, except mine was a ddc2 and I think I accidentally overvolted it.

    Who would of thought 30volts was too much?... It ran for about 30 seconds making all sorts of noise. I didn't even think to look at the voltage guage, instead I sat there whacking the pump thinking there was an air bubble in in.

    Anyhow sorry to hear about the 3.2..

  13. #38
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    Thats why I reccomend MCP655/D5


    Atleast it didnt take your system with it
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  14. #39
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    Quote Originally Posted by Jimmer411 View Post
    Thats why I reccomend MCP655/D5


    Atleast it didnt take your system with it
    I think mine was actually my powersupply going out and pegging the 30Volt output. Looks like I won't be doing any pump testing for a while (30Volts or nothing), oh well...looks like everything electronic has a lifespan.

  15. #40
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    Quote Originally Posted by Martinm210 View Post
    Oh well...looks like everything electronic has a lifespan.
    Except that with an Iwaki, its measured in decades

  16. #41
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    maybe some fluid leak into the pump electronics ... (maybe those O-Rings are not performing well)
    it's impossible to have the pump kaput while the PSU is fine ... this is not assasinations ... electric surges wont just jump queue and attack the back

  17. #42
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    Quote Originally Posted by Jimmer411 View Post
    Thats why I reccomend MCP655/D5


    Atleast it didnt take your system with it

    I seriously trust these pumps like 100 times more than the DDC series pumps.

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  18. #43
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    Did it behave funny at all previous to dying? My first DDC was a DDC-1 (black impeller) and a few months prior to failing it started dropping a couple hundred RPM off its speed for a second occasionally.

    My 3.2 I got in return (in 3.1 packaging, woot for free upgrade!) has been running great and no strange behavior.
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  19. #44
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    Some fail. When taken as a % of the number that are out there in machines, it seems pretty small for what amounts to gold to us, but really just a cheap $50 part to some foreign manufacturing plant.

  20. #45
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    Hehe this is one of the main reasons why I'm going with a dual pump setup, if one dies the pressure will drop from 2.2gpm to about 1.5 but at least the water will keep flowing
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  21. #46
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    i seriously doubt in one month overheating is the issue. more than likely the top wasn't on well and leaked into the electronics. let's not start down the DDC bashing road again. Every pump and electronic for that matter has a certain number of defects. d5 pumps die too.

    take it apart and take a look at the insides. if there are no signs of a leak, i personally would have absolutely no problem putting the stock top on and sending it back to Swiftech for an RMA. if a leak caused the problem, then it is on you, but if the pump was just defective for some reason, then it isn't your fault. And before people harp on the issue that "technically" if you change tops your warranty is void, then you also have to stick to the ridiculous warranty technicality that you have to use hydraX.

  22. #47
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    Quote Originally Posted by Serpentarius View Post
    maybe some fluid leak into the pump electronics ... (maybe those O-Rings are not performing well)
    it's impossible to have the pump kaput while the PSU is fine ... this is not assasinations ... electric surges wont just jump queue and attack the back
    Not really a case of "jumping" so much as various tolerances. It is unlikely that the pump would have a lower tolerance than the PSU, but it is possible. Think of it this way, a power surge comes in and passes through the PSU. It's high, but not quite high enough to blow any components in the PSU (although it could stress some capacitors, which are iffy prospects to begin with) and passes through one of the rails into one or more components, which are not as forgiving of sudden power spikes, and thus fry. I've seen some strange things as well, and lightning often doesn't enter through the power supply (which usually has at least a surge protector or UPS to buffer it). It's rarer now days with modems not being as popular, but it used to be the most common lightning damaged piece of the computer was the modem. Friend of mine had his modem get hit and it literally blew chunks out of a couple ICs on the card, but otherwise did no damage to his computer. Of course, he also had a power surge set his CD-ROM on fire one time as well (no kidding, the IDE cable caught fire). Also had a neighbor who's sound card and the PCI slot it was plugged into got fried by a power surge. Not sure if it came in through the PSU, or somewhere else, but the only thing damaged was the soundcard and PCI slot (the one slot was dead, all the others worked fine).

    As an aside for anyone that's never had a computer catch on fire it's a rather unique experience. The first thought through your head is usually "Ah!!! My computer!!!", followed a few seconds later by the thought that probably should have been your first one of "Ah!!! FIRE!!!", which is then immediately followed by the thought of "But how do I put out the fire without damaging my computer?". Thankfully in most cases just unplugging the computer will go a long way towards putting out the fire, and if not you can usually smother it.

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