Pumps do go bad. A really good pump will last about 4 years. I would personally not use it to fold till you can get a replacement pump. It could be catastrophic if the pump were to seize.
MCP655 making strange sounds...
I started folding on my rigs last month so my sig rig has been on 24/7 since then. Since its not silent by any means and it's on all the time I can hear it quite clearly (I sleep close to it).
In the past few weeks my pump has been making some strange sounds. It's sort of hard to describe but it's a gurgling sound sort of like there are some air bubbles flowing through the pump but there is no air in the loop! The sound happens every couple minutes for a few seconds.
I check it every day in the morning and when I get come from class and there is plenty of flow (disturbance in the res) and the coolant level in the reservoir hasn't dropped at all since I filled the loop in mid-December so it's not leaking.
Could this be a sign my pump is dying? Should I not leave it on for extended periods of time when I'm not hear in case the pump burns out? I am taking a pretty tough course, so I am often in the lab for 7-9 hours a day working on my server, etc.
Not too worried about it right now, but I'd like to know if anyone else has experienced this with an MCP655/D5. Thanks.
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In the past few weeks my pump has been making some strange sounds. It's sort of hard to describe but it's a gurgling sound sort of like there are some air bubbles flowing through the pump but there is no air in the loop! The sound happens every couple minutes for a few seconds.
I check it every day in the morning and when I get come from class and there is plenty of flow (disturbance in the res) and the coolant level in the reservoir hasn't dropped at all since I filled the loop in mid-December so it's not leaking.
Could this be a sign my pump is dying? Should I not leave it on for extended periods of time when I'm not hear in case the pump burns out? I am taking a pretty tough course, so I am often in the lab for 7-9 hours a day working on my server, etc.
Not too worried about it right now, but I'd like to know if anyone else has experienced this with an MCP655/D5. Thanks.
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Thanks for chiming in Ira. I'd rep you if I could!
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I think you hit the nail on the head and there's just a bit of air caught in the pump. It's definitely not a hard-surface-on-hard-surface sound and the best way I can describe is to liken the sound to the release of air bubbles.
I just got off the horn with Swiftech and the first thing the guy told me was to shake the pump well and try dialing it the speed down a bit. So I'll give that a shot, and if nothing changes I'll RMA it. It's still well within it's RMA period.
Thanks fellas.
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Originally Posted by ira-k Sounds like you may have gotten a big air bubble stuck in it, unmount your pump if its bolted down and shake it real well and see if you can get any air out of it. The only moving part in that pump is the impeller and it rides on a ceramic bead, so usually when the bead or more likely the metal saddle in the bottom of the impeller it rides on gets wallowed out it will make a scraping screechy kind of sound. |
I think you hit the nail on the head and there's just a bit of air caught in the pump. It's definitely not a hard-surface-on-hard-surface sound and the best way I can describe is to liken the sound to the release of air bubbles.
I just got off the horn with Swiftech and the first thing the guy told me was to shake the pump well and try dialing it the speed down a bit. So I'll give that a shot, and if nothing changes I'll RMA it. It's still well within it's RMA period.
Thanks fellas.
I'm happy to report the issue is fixed!
I shook the pump but more importantly I noticed a tiny bit of foam clinging to the edges of the res at the top of the coolant which indicated to me that tiny air bubbles were being drawn into the loop by the pump. Sure enough, when I looked at the tubing from the right angle I could see minuscule bubbles clinging to the tubing in places.
So I topped the res up a bit and instantly I heard a release of air and then all the sounds from the pump stopped. I left my rig on all night and I didn't hear anything at all coming from it. There must of been a tiny bit of air caught in a rad and when it released sometime in the last month, it lowered the coolant level in the res just enough to allow the pump to suck air in (I know there is a word for this!). Damn 655/D5's are strong!
Anyway, now this rig can get back to pumping out PPD while I'm in class!
Thanks again Ira and everyone else.
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I shook the pump but more importantly I noticed a tiny bit of foam clinging to the edges of the res at the top of the coolant which indicated to me that tiny air bubbles were being drawn into the loop by the pump. Sure enough, when I looked at the tubing from the right angle I could see minuscule bubbles clinging to the tubing in places.
So I topped the res up a bit and instantly I heard a release of air and then all the sounds from the pump stopped. I left my rig on all night and I didn't hear anything at all coming from it. There must of been a tiny bit of air caught in a rad and when it released sometime in the last month, it lowered the coolant level in the res just enough to allow the pump to suck air in (I know there is a word for this!). Damn 655/D5's are strong!
Anyway, now this rig can get back to pumping out PPD while I'm in class!
Thanks again Ira and everyone else.
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