Pump won't start ?

paulstung · 24 Jul 2014 at 18:18

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.

pastymuncher · 24 Jul 2014 at 18:55

Why are you using two psu's for a spec that low? I doubt that the whole pc pulls much more than 200w fully loaded.

Mayhems · 24 Jul 2014 at 19:24

Why don't you just swap over the psu's then !

paulstung · 24 Jul 2014 at 20:53

I'm not using 2, One for leek testing, and the other is the one in the pc it self. You only connect the pump to the 2nd psu, the main one, can stay connected to the motherboard gpu etc... and if you have a leek, it won't fry everything connected to it.

I might have to mate, I bought the fury for the Alchemy cables, as standard, and with it being M-ATX, there isn't enough room for extensions.

I can't understand why it won't run on one, but it will on the other, it can't be too much load, I've done a few PC power supply calculators, and I'm getting between 341w, and 397w, so plenty of head room there.

Mayhems · 24 Jul 2014 at 21:12

some times these things are there just to test us. Try removing 18 watts of power E.g a few bits a bobs and see if it will work.

paulstung · 24 Jul 2014 at 21:28

That was my first thought, I removed everything bar, the cpu, gpu, and the pump but nothing. The god news is, it decided to work, With the Fury, you only get the 1 Molex cable, with 3 connectors, the pump was in the last one, so I put it in the first one, and all's good now.

It must be having a blonde day, PC's and their ISM's, lol.