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Is my pump dying?

post #1 of 2
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I fear my D5 vario may be running on its last leg. I turned my system on for the first time in about a week the other day(I just moved and have been busy with other things). Everything started up fine, browsed around on the nets for a little, watched some netflix, and left the room for about half an hour. When I came back there was a smell of heat. Kind of hard to explain. Not really burnt circuit board, melting electronics or plastic or anything like that, but like the smell of a dryer just after running. When I approached my case, a test best sort of case, I felt a massive wave of heat coming off it. I felt the tubes and they were warm and very flexible. I touched the bridge block of the GPUs and it was extremely hot. I looked in the res and there was no movement at all. I immediately hit the power but to do a a hard shutdown. I plugged the pump into an extra power supply I keep around for loop bleeding and water started flowing. I left it run for about half an hour, including the fans, to cool everything down without a problem.

I have the pump, four radiator fans, and the power to my sound card all plugged into a Bitpower X-Station Power Extension. I thought maybe that was going bad to I tested that and it seems that it's working as it should. When I plugged everything back into the main PSU and started up the system the pumped started up just fine. After an hour I noticed the smell again, looked down and saw the pump had stopped running again. The four fans and sound card were still functioning properly though. I don't want to buy a new pump if I don't have to but I will if that actually is the problem. Any thoughts on what else it could be. I thought maybe there was too much load on that single rail, but a pump, four fans running at 7v, and a sound card wouldn't overload that PSU rail, would it?
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post #2 of 2
Try running the pump straight from the PSU, this will rule out any possible issues with the X-Station or wiring. Keep an eye on temperatures whilst you are doing it of course.

If it still stops after a while then it is probably time for a new pump. You can try RMA'ing it if it is still in warranty, or taking it apart and repairing it if not (might be as simple as a loose connection somewhere).
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RX240 MCR 220 EK 7950 Copper Acetal  DDC-1T 
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