pump noise AAAARRRRRGGGG

flearider · #1 05-09-2008, 18:40

ok got one of those sunbeam fan controllers but ...even when i turn down the pump and i do have to be carefull or the pump throws a fit and turns off ..i can still hear the whine and it's driving me nuts ..

this is what i have Water-Cooling Shop : 12V Laing D5 Vario/Swiftech MCP655 Pump well nearly mines the d4 version and i don't think it's suposed to be turned down hence the turning off part(all happens in a quarter turn).

so i think i need to go with somthing else and thats where you guys come in are the new dcc pumps any quieter ?? or somthing else ..

Kelainefes · #2 05-09-2008, 19:17

MMMH can you hear the noise even if you hold it in yout hand? Is it impeller noise or it may be that the D4 is causing some piece of the case to resonate?

Clunk · #3 05-09-2008, 19:17

The D5/MCP655/D4 pumps need to be properly isolated or they really do whine. I recommend one or two of those gel mats.

Same goes for the DDC, I have a 12w and an 18w, if placed against a hard surface they will both make a droning sound and vibrate a lot.

I found that suspending the DDC by it's inlet hose, this gets rid of most of the noise, and also, the gel mat works well, but the underside of a DDC can get really hot, hot enough to melt the mat!

The D-Tek pumps are cheap and silent, but not the most powerful, as are the XSPC 400lph pump.

flearider · #4 21-09-2008, 13:41

ok been doing some reading here and there .now from what i have read it seems that these days your pump does not have to be really fast so a pump that does 300lph is as good as a pump doing 500lph?
and as it's going slower you would get less noise .
not being a tech head i can only believe what i read so going to check with you guys ,it all has to do with the newish blocks having a fast flow rate..?

i'm i right or have i been reading to much into it ?

affiliate13 · #5 21-09-2008, 14:08

Here is a tool to help you get an indication of flow:
Martin's Flow Rate Estimator

Clunk · #6 21-09-2008, 14:44

Quote:

Originally Posted by flearider

ok been doing some reading here and there .now from what i have read it seems that these days your pump does not have to be really fast so a pump that does 300lph is as good as a pump doing 500lph?
and as it's going slower you would get less noise .
not being a tech head i can only believe what i read so going to check with you guys ,it all has to do with the newish blocks having a fast flow rate..?

i'm i right or have i been reading to much into it ?

If you have a more restrictive system, a few blocks, with maybe an impingement type CPU block, then a more powerful pump should benefit you slightly. The drawback with the higher powered pumps is that they tend to dump a lot of their heat back into the water.

A 300lph pump is fine for a small, basic loop, in fact I ran one for the last 18 months on my NB and GPU and it worked well.

Just try and think of it logically...that little pump has to force water round the loop and each rad/block/res you add to it will increase it's workload, so you don't really want a dual rad, 4 block loop with a 300lph pump

flearider · #7 21-09-2008, 17:53

yeah i see what your saying but even on my d4 pump i never run it on full power so for me a 300lph pump would be ok ..it's only going thru a triple rad, cpu ,vid card and the res with 1/2 inch piping under full load at 3.7gig 1.35v i only hit 46 deg c and i hope then to get rid of the anoying wine of the impeller