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Laing ddc 1t pump wiring issues

post #1 of 17
Thread Starter 
Does anyone know what the problem might be, i bought 3 OEM laing ddc 1t pumps and I wired all 3 of them the same way but only one works

while the 2 others don't power on. The pumps came with a 6pin connector with 4 wires so I took out the power and ground wires and put them

in a 3pin connector using wire 1 as power (+) and wire 3 as ground (-) I've tried arranging the wires into a 4pin pwm connector but they still

don't power on. I am powering the pumps via a 3pin to 4pin molex adapter as well.

600

307
Edited by kazenagi - 12/23/11 at 6:11pm
post #2 of 17
Thread Starter 
Bump for any help >.> the multimeter says i have the wiring right but I just don't get any response when i put power through it.
post #3 of 17
PMed a reply to resolve the issues with the other two pumps. Also Martin's Lab has the pinout defined really well.

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post #4 of 17
Just received my pump day before yesteday, thanks, bmaverick, it looks great. . . just have a question before I solder on a connector.

I took the pump out of the case to examine the PDB and traced the wires to make sure they were as described in the picture on Martin's lab page... but I found that the wires did not line up as I expected. In the picture below, the two images on the right are the wiring http://martinsliquidlab.org (on the top) and the wiring on my pump below.

355

So just wanted to ask about this. Any idea why the wires are in a different order here? I thin k I should trust the PCB image, and assume the wires are attached to the PCB as expected, and were just put in the connector differently, yes?

Also, when I figure out the wiring order, I intend to attach a 3 pin connector and plug the pump into one of the motherboard fan headers (not the CPU one, which I have plugged into my Rheosmart to control fan speeds). It would run at 100% all the time. Shouldn't be any issues with that, right?

Thanks,
post #5 of 17
Mine was wired different, I hooked up just the left two wires out of the four and got it to work. The 1 power and 3 ground did not work for me, 1 and 2 worked only.

1144515890_8byeF-XL.jpg
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post #6 of 17
Quote:
Originally Posted by shineon2011 View Post

Mine was wired different, I hooked up just the left two wires out of the four and got it to work. The 1 power and 3 ground did not work for me, 1 and 2 worked only.

1144515890_8byeF-XL.jpg

Thanks, I'll try that.

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post #7 of 17
Hmm..maybe I screwed up one of my pictures. I am pretty sure the plug markings worked though..that is how I powered mine up.
    
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post #8 of 17
I'm having the same problems too. Did 1 & 3 but no response. I'm pretty sure I tried 1 & 2 as well. Shineon and cyclometric, was your 1 still the power?
post #9 of 17
So, after one last attempt before sending back to bmaverick to look at (amazing customer service), I finally figured out the wiring on my pump. For mine, the power was the 2nd wire, and the ground was the 1st wire.
post #10 of 17
FWIW, I just double checked mine, and this is exactly what works for me. #1 is positive, and #3 is negative:
laingddc1-3.jpg?w=614&h=589
laingddc1-5.jpg?w=614&h=417

Maybe there is more than one variant, I know Laing had quite a few revisions over the years.
    
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