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Swiftech MCP35X failing?

post #1 of 20
Thread Starter 
So ive only had my pump maybe 4 months and I think it may be failing

its always been pwm controlled on my huge loop (2 360 rads, 2 universal gpu blocks, cpu block and flow meter) but recently it just stopped working

I took the loop apart and ran the pump in my sink with some water and it came back to life so I cleaned it all up and put it back in my comp

It seemed to be working ok until just now when I turned it on and it wasnt starting up, luckily it did start up after a gurgle which sounded like air in the pump so im wondering is my pump failing? or can air caught in the pump stop it from starting up?

Hope someone can help as I really cant afford to replace my pump :-(

EDIT: also my ThermoChill PA120.3 rad did have a lot of flakes in it when I got it but im sure I flushed them all out but still my water is slightly pink from whatever was used in the rad before I got it
Edited by liamstears - 10/9/11 at 5:59am
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post #2 of 20
It's worth checking the cables and connectors to make sure there's not a loose wire although if there's a problem with the PWM connector it should just run at full speed. As you know you can't disassemble it without losing the warranty.

Has it got noisier over time? One of mine did and failed a few weeks ago.

You should be able to RMA it if it fails however don't bother going to Swiftech technical support if you don't live in the US, they won't bother to answer.
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post #3 of 20
When DDC pumps fail, they usually burn up some sort of electronics and emit a pretty strong burn smelling odor. Any chance you got some water down in the electronics?

I have also had a pump not start and nearly melt down a GPU loop when the molex connector was simply loose, so +1 on possible loose power connector.
    
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post #4 of 20
Thread Starter 
Quote:
Originally Posted by Martinm210 View Post
When DDC pumps fail, they usually burn up some sort of electronics and emit a pretty strong burn smelling odor. Any chance you got some water down in the electronics?

I have also had a pump not start and nearly melt down a GPU loop when the molex connector was simply loose, so +1 on possible loose power connector.
I do quite a bit of soldering and some repair work and i know there is nothing wrong with connections and also the pcb looks fine, I had a quick look inside as I use it in an xspc bay and the warranty is already void, all seems ok.

Also when it wasnt starting up I could here the pump making a noise, im sure it was 3 little beeps followed by a pause then the same again as if the pump was on electronically but just not spinning...
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post #5 of 20
How is the pump mounted?
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post #6 of 20
Thread Starter 
Quote:
Originally Posted by tsm106 View Post
How is the pump mounted?
In one of these: http://specialtech.co.uk/spshop/cust...-pid-9974.html
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post #7 of 20
Try lubing it up a bit with some glycerin. I'm in the exact same boat as you regarding pump and res and possibly restriction as well (3 rads, full cover dual gpu block, cpu block). I added about 1/2oz. of glycerin to my loop as a precaution and it seemed to quiet the pump down a bit. My HDD is now much louder than the pump.

Could be placebo, but since your warranty is already void, might as well try everything.
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post #8 of 20
Thread Starter 
Quote:
Originally Posted by MKHunt View Post
Try lubing it up a bit with some glycerin. I'm in the exact same boat as you regarding pump and res and possibly restriction as well (3 rads, full cover dual gpu block, cpu block). I added about 1/2oz. of glycerin to my loop as a precaution and it seemed to quiet the pump down a bit. My HDD is now much louder than the pump.

Could be placebo, but since your warranty is already void, might as well try everything.
I have never heard of glycerin before? is it safe to use in a wc loop? Where would I get it here in the UK?
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post #9 of 20
Glycerin is safe to use in a WC loop. I picked up mine at the local bog box store in the pharmaceuticals section.

I actually use mine both for WC, and for mixing with eliquid for nicotine habits.
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post #10 of 20
Quote:
Originally Posted by liamstears View Post
Those things are not good for cooling. Do you have a bay slot clearance under it and or active air movement across the pump? Pumps can and will die from heat.
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