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Cant figure out how to turn on pump

post #1 of 13
Thread Starter 
I bought 4 Laing DDC-1t pumps which are oem, according seller these pumps with black molex can be turned on without rewiring either from motherboard, fan controller or fan adapter(see picture).

I did connect the fan adapter to the pump then to PSU and try it on for 1 seconds and nothing happens?

I compared the wiring on my other pumps and added to the picture seems to be the same, 4, 3 ,2 ,1 on molex and 1, 2, 3 ,4 on Pump as I have marked on picture, also the molex is black.

448
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post #2 of 13
Just to be sure, do you have tubing hooked up to the pump containing water/coolant? Is the power supply completely hooked up to the motherboard as well? If not, you need to short the 24-pin motherboard cable to get the power supply to turn on.
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post #3 of 13
Thread Starter 
Yes, I'm just turning on PSU nothing else, I even connected a fan to the fan adapter to make sure the adapter is non defective.

edit--> yes I do have tubing and destilled water and nothing happens when turning pump on, wery frustrating I have had my build complete for 1-2days but can't figure out pump frown.giffrown.gif
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post #4 of 13
Were any of the molex pins pushed out of place when plugging the molex cable in? I've had that problem before.
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post #5 of 13
Thread Starter 
My understanding was that the pumps with black molex can be connected without rewiring, seeing as I can't turn on pump that is not the case?
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post #6 of 13
so your pump have 4 wires and they are all black? if they are color coded, you only need the red and black one( + and -)

if yours like mine. 450
you need to cut the + and - wire and attach it to a molex adapter (the picture you have from directron.com)

like this. (this is a picture of my second pump and it wires are color coded. thats why its not all black like my first picture)
450
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post #7 of 13
Thread Starter 
Thanks CartmanTheTub

Well I was told by the seller I did not need to modify anything when the pump has black molex, mine is like youre 6pin molex but black.

Hopefuly he can inform me how to rewire, I don't really want to experiment too much and damage the pump before knowing how to turn it on.

edit--> Looking at the martinm original image here: http://martinsliquidlab.org/2011/03/09/laing-ddc-1-ddc-1t/
I would mean I would have to modify the wiring to get + and -.

However I'm not entirely sure if this pump is same revision as the pump on the martinm site.

edit 2---> I think I need to cut wire 4 and solder it to red wire, cut wire 2 and solder it black wire if it's same pcb as martinm picture and labeling.

448
Edited by grandpatzer - 4/17/12 at 12:03am
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post #8 of 13
Martin's article you linked to is pretty clear. 1 is the positive, 12v lead and 3 is the negative. The link to the installation guide on bmaverick's site is to show specs.

Rewire accordingly and get 'er goin'.
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post #9 of 13
if you bought your pump from bmaverick. it should be 4 = + and 3 = negative (referred to your first picture. it would be 3 and 1 from the picture below taken from martinsliquidlab) . I got my pump from bmaverick and he was the one who marked the wires for me.

just look at this picture (taken from http://martinsliquidlab.org/2011/03/09/laing-ddc-1-ddc-1t//URL])
407
the positive and negative are the too wires that have one space between each other.
Edited by CartmanTheTub - 4/17/12 at 2:41am
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post #10 of 13
Thread Starter 
bmaverick told me that if I follow the martinm pictures I would fry pump because the new ddc-1t with black molex are plug and play.

I was told it was no modification needed to install to motherboard, fan controller or fan adapter.

Now considering fan controllers only have red and black wire it suggests that it is the two wires next to each other to the right that are + and -, but this did not work when I tried pump for 1 second.

I think it comes down to these options:

Option 1: Just like bmaverick says it is plug and play suggesting the wires next to each other are + and -(as my picture), I did however test with a fan adapter and nothing happens.

Option 2: As in picture if it's same PCB layout on pump as with martinm it would mean rewiring as left wire is red and the 2nd from right is black.

Option 3: Neither of these above it's some other combination

option1.jpg

option22.jpg

option3.jpg
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