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Loop filling and testing problem

post #1 of 7
Thread Starter 
Hey all,

I just finished assembling my first custom loop after alot of problems and am ready to fill it up with demineralized treated water to start testing it for leaks and clean it at the same time using the Sys Prep provided with my tubing.

I used some brand new Corsair ATX 750W psu I received recently and used some small wire to short-circuit the motherboard's 24 pin connector's black and green wires together to bypass the motherboard and connect only the D5 Vario PWM pump also leaving its 4 pins connector unplugged. When I plugged and turned on the PSU, the differential breaker of my kitchen's outlet instantly triggered. When I tried turning on the PSU again, but without anything plugged in the same thing happened again so I'm not sure what's the cause of all this. I red that some devices must be plugged in to power on the PSU safely, but I also red a pump would be enough. I briefly tested the PSU afterward and it seems to be working, but I couldn't find any way to safely test the pump because it's inside my computer's loop.

Please help me I can't figure out what I should do.

Thanks in advance.

Alex
Edited by AlexMasse - 1/6/16 at 7:14pm
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post #2 of 7
Quote:
Originally Posted by AlexMasse View Post

When I plugged and turned on the PSU, the differential breaker of my kitchen's outlet instantly triggered.

I briefly tested the PSU afterward and it seems to be working,
When you tested the PSU was it plugged into the same kitchen outlet?
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post #3 of 7
Thread Starter 
No I tested it in different regular (non GFCI) outlets. I also just tested it in a different GFCI one in my kitchen and it doesn't make it trip... Looks like the outlet is defective ven though I use it daily for a water boiler, toaster and coffee machine.
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post #4 of 7
Quote:
Originally Posted by AlexMasse View Post

No I tested it in different regular (non GFCI) outlets. I also just tested it in a different GFCI one in my kitchen and it doesn't make it trip... Looks like the outlet is defective ven though I use it daily for a water boiler, toaster and coffee machine.

So try testing the pump on the different regular outlet.

I am not an electrical engineer so I don't know how true this is for computer PSUs, but I do know that large industrial ones often have a transient spike in power draw when you first energize them. It lasts for milliseconds, but it may be enough to trip your breaker.
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post #5 of 7
Thread Starter 
Thank you very much. While your explanation makes alot of sense, it doesn't explain why one GFCI outlet would trip everytime and not the other but their sensitivity could just be slightly different.

Now im having a hard time trying to figure how im supposed to drain my loop once ill be done cleaning it.
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post #6 of 7
Probably, as you said, sensitivity. It could also be to do with the length of the wire leading to that point, as longer wires have a larger inductance.

As for drain points, there are several ways I've seen it done. One of the easiest and cheapest ways to set up a drain point is to use a capped T piece at a low point in the loop. Other ways involve quick disconnects, valves, and other odd contraptions.

If you don't have a drain point you have two options - either disconnect a hose at a low point (and then watch it carefully when you first run the loop live), or turn the computer upside down and hold it over the bath (seriously).

Edit: how I set up my drain point Warning: Spoiler! (Click to show)


Edited by GingerJohn - 1/7/16 at 8:14am
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CoolingCoolingCoolingCooling
RX240 MCR 220 EK 7950 Copper Acetal  DDC-1T 
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Windows 7 64-bit Dell U2311H Oculus Rift DK2 Ducky Shine 3 MX Brown 
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Corsair TX 750W CoolerMaster CM690 II G500 Klipsch ProMedia 2.1 
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Main
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CPUMotherboardGraphicsRAM
i5 2550k P8P67 Pro Sapphire HD 7950 G.Skill RipJaws X 1600 Cas 9 
Hard DriveHard DriveHard DriveCooling
Corsair Force 120 WD Blue 500GB WD Caviar Green 1TB XSPC RayStorm 
CoolingCoolingCoolingCooling
RX240 MCR 220 EK 7950 Copper Acetal  DDC-1T 
OSMonitorMonitorKeyboard
Windows 7 64-bit Dell U2311H Oculus Rift DK2 Ducky Shine 3 MX Brown 
PowerCaseMouseAudio
Corsair TX 750W CoolerMaster CM690 II G500 Klipsch ProMedia 2.1 
Audio
Asus Xonar DX 
CPUMotherboardRAMHard Drive
A10-6800K Gigabyte GA-F2A85XN-WIFI G Skill 1600 CAS9 Kingston SSD Now 60GB 
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post #7 of 7
Thread Starter 
Thank you very much for you suggestion I didn't see your reply until today lol.

I'll most likely have to go with your "bath" method the first time I'll clean my loop and add my graphic card in it, but I'll try to get myself some drain port and find some place to put it because my loop is really a pain to work with because of the lack of space... I have 2x 360 rads and a pretty big reservoir (Photon 170) in a H440 case and the front rad is 60mm thick. It's really overkill for now since I only have my CPU in the loop, but I was planning to add up to 2 GPU cards.

At least right now it's up and running correctly after I had to fix a leak coming from my brand new Swiftech Apogee XL ROG CPU block.

I have discovered my pump is not correctly decoupled from my case and is causing alot of vibration when running at full speed. The tubing between the pump and reservoir is short and kind of compressed in there so the vibration is transmitted to the reservoir which in its turn transmits it directly to the whole chassis.

Cheers
My build
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CPUMotherboardGraphicsRAM
4790K 4.7 GHz VII Hero GTX 970 G1 1571 / 7800 G.SKILL 2400c10 16 GB 
Hard DriveHard DriveCoolingOS
Mushkin Chronos Deluxe RAID 0 WD Red 3TB External Custom Water Windows 10 Pro x64 
MonitorKeyboardPowerCase
Acer XB271HU Corsair K70 RGB MX Brown Seasonic X-850km3 NZXT H440 Black Red 
MouseMouse PadAudioAudio
Roccat Savu XFX Warpad Audioengine A5+ Bamboo Logitech G930 
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My build
(16 items)
 
  
CPUMotherboardGraphicsRAM
4790K 4.7 GHz VII Hero GTX 970 G1 1571 / 7800 G.SKILL 2400c10 16 GB 
Hard DriveHard DriveCoolingOS
Mushkin Chronos Deluxe RAID 0 WD Red 3TB External Custom Water Windows 10 Pro x64 
MonitorKeyboardPowerCase
Acer XB271HU Corsair K70 RGB MX Brown Seasonic X-850km3 NZXT H440 Black Red 
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