Pump help

ChrisLandin

ChrisLandin

ChrisLandin

Associate
Joined
10 Jun 2009
Posts
2,225
Location
Darlington
Hiya all.

I got one of these pumps

http://www.overclockers.co.uk/showproduct.php?prodid=WC-047-AC&groupid=962&catid=1522&subcat=

and when I first set up my loop it was almost silent. Now after a week or so its starting to get louder and louder. In fact is getting quite annoying. A loud whirring sound is the best way to describe it. Ive checked for air bubbles and there arnt any at all. The tubing runs clear and there isnt any trapped in the pump because it has a clear top so I can see.

Now this is the first time ive made a water loop and I was wondering if it was usual for that noise?

The pump has to power

Res > cpu > dual rad > gpu > dual rad > res

all on half inch pipe. Is it to much for the pump??
 
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I have both the 18W and 10W DDC pumps and neither of mine make any sound above a barely audbile hum. However, I have the feet of mine heavily damped with custom made blocks of silicone rubber, so depending on how you have mounted yours it may be worth while loosening the mounting to see if the noise goes. If it was silent to start with it may be that the pump has settled to a point where it is resonating, the above tip will also help to see is this is occuring.
 
You know I was going to go for a D5 as well.

Never mind.

Its not that bad just hacks me off a bit because I was looking for silence!

I will know for next time. I put all my fans onto a controller to help with fan noise as well.

I mean its not actually clamped to the case in any way its just screwed into the bottom of my res with 4 screws so I dont think its vibration there.

I might have a play with the fitting of the res in the drive bays and add some rubber there to see if that is maybe some of the problem.

Ah well cheers for your replies.
 
I had a similar issue recently with a pair of loops using 18W DDCs, one of the loops was very low restriction meaing the flowrate was very high and no matter what I did the pump in that loop whined, whilst the other loop ran quiet. Even swapping the pumps round made no difference.

Ended up comibining the loops into one with a single pump and now running silent.
 
Jokester said:
I had a similar issue recently with a pair of loops using 18W DDCs, one of the loops was very low restriction meaing the flowrate was very high and no matter what I did the pump in that loop whined, whilst the other loop ran quiet. Even swapping the pumps round made no difference.

Ended up comibining the loops into one with a single pump and now running silent.
Click to expand...

So the more restriction the quieter the pump ?
 
faster the pump's internal components are moving, louder it is. a propeller underwater makes virtually no sound, whereas same motor and blades in air would turn much faster, and be loud. at least, I think that is a good analogy....
 
I'm with Mr.dbristol on this - my own testing has proved that the 10w DDC is noisely let alone the 18w. But with a bit of fan noise it usually inaudable (vibrations can be an issue)

Also agree that under stressing a pump can lead to overspin and noise.
But two blocks and two rads should offer enough restriction to ignore this

does the noise start straight away? - or does it increase as the pc boots?
vibration or small bubbles would be my guess,

are you sure it's the pump? - have you try running the loop with out the fans / hhd active
have you tried holding the pump when running to see if the noise changes pitch?
 
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shadowscotland said:
I'm with Mr.dbristol on this - my own testing has proved that the 10w DDC is noisely let alone the 18w. But with a bit of fan noise it usually inaudable (vibrations can be an issue)

Also agree that under stressing a pump can lead to overspin and noise.
But two blocks and two rads should offer enough restriction to ignore this

does the noise start straight away? - or does it increase as the pc boots?
vibration or small bubbles would be my guess,

are you sure it's the pump? - have you try running the loop with out the fans / hhd active
have you tried holding the pump when running to see if the noise changes pitch?
Click to expand...


When i first setup the loop without fan noise or hdd's it was nearly silent. It just seems to be now its making the noise. The problem I have is that because ive modded my antec 1200 to get all my loop mounted internally space really is of a premium now so I cant get my hand in to grab hold of the pump to check for vibrations. I had already thought of that, but seeing as though you have come to the same sort of conclusion as i have I think I will spend the day on monday trying to sure it.
 
I use the d5. I didnt notice any highpitched sound for first day. On second day i could hear it and was a bit dissapointed. Then i heard my hdd's spin down from inactivity and the noise went. Turns out it was my hdd, and didnt hear it the first day as my main hdd is ssd and i didnt have the others wired up incase i needed to tinker with my loop. My pc is so much quieter now that im now looking at replacing one of my hard drives for being noisy, a problem i never foreseen arising.

Phil.
 
mrdbristol said:
It's the pumps natural noise imo.

I've argued this on a few threads, that they emit an electrical buzzing sound, and often been shouted down.

That is why i do not recommend them.

I will only use a D5 vario or a small 'block shaped pump ' - ( There are many variations on this design Dangerden, D-Tek, Phobya ) -

http://www.overclockers.co.uk/showproduct.php?prodid=WC-062-PB&groupid=962&catid=1522&subcat=

I'm using the DD variant atm, total silence.
Click to expand...

+1 i've tried a number of pumps and always go back to the d5, only pump I have found to be as close to silence as possible.

Other than that you could try above mounting it better all pumps do resonate, try moving it to a different part of your case. Another solution would be to bungee it (suspend it from elastic) or if your comfortable doing it supsend it from the tubing.
 
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