Pump won't start ?

[paulstung]

I've just finished leek testing my loop, and all was fine, but when I connect the pump to the main psu, it won't start, it, kind off tries, but starts then stops, with my external psu, it works fine, on 5v, 7v, and 12v.

between the molex and sata, I'm using 4 ssd's 4 fans and the pump. I've even tried the pump on it's own, but still no dice.

The external psu is an XFX Pro750w, and the main is a Bitfenix Fury 550w. The specs are, Pentium G3258, Asus Z97 Gryphon, Sapphire R9 270x Toxic, 2 x 120mm, 1 x 140mm and 1 x 200mm fans, 4 ssd's and the pump.The pump is a Koolance PMP500.

 

[YouWhat]

There should be enough power there, but if it is not starting off the internal supply, firstly check and change the cable (if possible) that it is run off, or try plugging into a different molex connector.

If that doesn't work, then it looks like your power supply hasn't got the power to run the pump to check take out graphics card and run off onboard graphics (if mobo has it) and see if it starts, if it does not start, then its more than likely the cable / connection, and it does and you have checked and changed the cable, then the PSU is not enough for the system.

 

[paulstung]

The Fury only has one Molex cable with 3 connections, the pump was in the last one, so I swapped it to the first one, and all is good. A bit of a strange one was that. Bloody PC's and their ism's...