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My Brand New MCP655 pump is starting to make a Buzzing Sound all of the sudden - Page 2

post #11 of 22
D5 / DDC pumps start to make more noise as they wear out. The impeller bearing can wear down and allow the impeller to move around and vibrate more before they finally wear enough to touch the pump body. Not saying this is the case here.
There is no easy to way to tell what the problem is without stripping the pump down. It is an unusual noise.
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post #12 of 22
Thread Starter 
Quote:
Originally Posted by Jakusonfire View Post

D5 / DDC pumps start to make more noise as they wear out. The impeller bearing can wear down and allow the impeller to move around and vibrate more before they finally wear enough to touch the pump body. Not saying this is the case here.
There is no easy to way to tell what the problem is without stripping the pump down. It is an unusual noise.

well its definitely an electrical sound. But it is doing its job like a CHAMP so its hard for me to say its going bad and RMA it.

I have both of these pumps in series and i adjusted the speed for both to 4. But being that these pumps are BRAND NEW, i cant just jump to the conclusion that it is wearing out. I have 2 more of these Pumps in series for my GPU loop and they have both been running at 5 speed for about a year now, and they are not making this buzzing noise.
post #13 of 22
I've heard this before on a pump where it was dropped on it's impeller to barely make a crack where the impeller sits on the rod. It also could be a small air bubble stuck in the impeller. Take it out of the case and power it on. If the pump makes this sound running without liquid, then you know it wasn't an air bubble and should be RMA'd.
post #14 of 22
Thread Starter 
Quote:
Originally Posted by JamesB View Post

I've heard this before on a pump where it was dropped on it's impeller to barely make a crack where the impeller sits on the rod. It also could be a small air bubble stuck in the impeller. Take it out of the case and power it on. If the pump makes this sound running without liquid, then you know it wasn't an air bubble and should be RMA'd.

i have been told you should NEVER run the pump dry. Are you sure i should do this?
post #15 of 22
Quote:
Originally Posted by JamesB View Post

I've heard this before on a pump where it was dropped on it's impeller to barely make a crack where the impeller sits on the rod. It also could be a small air bubble stuck in the impeller. Take it out of the case and power it on. If the pump makes this sound running without liquid, then you know it wasn't an air bubble and should be RMA'd.
Never give bad advice. I'm deciding whether to call a mod or not, because doing as you say would destroy his pump and void the warranty.
Quote:
Originally Posted by jblanc03 View Post

i have been told you should NEVER run the pump dry. Are you sure i should do this?
Never, ever run the pump dry. Perhaps with oil drops, but you've got to be an expert on this.

You can set a res and pump only loop, but make sure to drop the speed to the minimum to prevent vortices. Then start pumping the speed up and see if the noise is still there. I'd go to swiftech forum or ask Bryan (Swiftech support member @ OCN).
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post #16 of 22
Quote:
Originally Posted by cloppy007 View Post

Never give bad advice. I'm deciding whether to call a mod or not, because doing as you say would destroy his pump and void the warranty.
Never, ever run the pump dry. Perhaps with oil drops, but you've got to be an expert on this.

You can set a res and pump only loop, but make sure to drop the speed to the minimum to prevent vortices. Then start pumping the speed up and see if the noise is still there. I'd go to swiftech forum or ask Bryan (Swiftech support member @ OCN).

It's pretty obvious the guy telling the OP to run the pump dry has no experience with the pump. You can never run the MCP655 pump dry, it was never built to operate that way. You must always prime the pump with fluids before trying to operate it. It's possible that the impeller maybe damaged on the point where it is sitting on the ceramic bearing causing it to possibly spin out of control and hit the inside of the pump making that noise or making the noise sitting on the bearing. The best way to check if your pump is damaged is to take your system down and take the pump apart and check for impeller damage. If there is no damage then the only thing I can conclude is it could be an electrical problem.

Having several MCP655 pumps die on me before to failure I would agree with Jakusonfire's analysis. The pump only makes strange noises if the pump is going to go out because of wear. The only other reports I have heard of from people is that they had a problem with the electrical component of the pump board frying or malfunctioning. If you're worried about the life of the pump just RMA the pump back. The pump should not make noise like that while in normal operation considering you have a perfectly working pump.
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post #17 of 22
Thread Starter 
Quote:
Originally Posted by cloppy007 View Post

Never give bad advice. I'm deciding whether to call a mod or not, because doing as you say would destroy his pump and void the warranty.
Never, ever run the pump dry. Perhaps with oil drops, but you've got to be an expert on this.

You can set a res and pump only loop, but make sure to drop the speed to the minimum to prevent vortices. Then start pumping the speed up and see if the noise is still there. I'd go to swiftech forum or ask Bryan (Swiftech support member @ OCN).

yeah I agree with you!

What do you mean when you say prevent Vortices?
post #18 of 22
Quote:
Originally Posted by jblanc03 View Post

yeah I agree with you!

What do you mean when you say prevent Vortices?

See Wikipedia:

https://en.wikipedia.org/wiki/Vortex

Vortices is plural for vortex.
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post #19 of 22
I'm having the same issue with a MCP35X pump, except the sound is much more audible.
My thread is here

I notice you also have the FrozenQ Liquid Dual bay res, I was wondering if the mount they provide could have something to do with it ?
post #20 of 22
Thread Starter 
Quote:
Originally Posted by Gauvi View Post

I'm having the same issue with a MCP35X pump, except the sound is much more audible.
My thread is here

I notice you also have the FrozenQ Liquid Dual bay res, I was wondering if the mount they provide could have something to do with it ?

well i will tell you that the first production of this res was flawed in that the pump would not push water through the system at all!!!! you had to actually mod it a little to make it work right. So i returned the item and after a few months they fixed the issue and i bought it again and it worked the way it was supposed to.

I am pretty sure that the noise i am getting is electrical. So if yours is more like a physical grinding noise than it might have something to do with the mount. Sorry i cant be of much help.

Mine sounds normal.

I have this res for my least important loop, my motherboard and ram loop. I think the setup of this dual bay res/Pump combo limits the strength of the pump. Its more for looks.
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