High pitched whining driving me nuts

hanlin

Limp Gawd
Joined
Oct 20, 2004
Messages
243
I have this really high pitched whinning noise coming from my computer and it's really driving me insane. I have no idea where it's coming from. It's not any of the fans. I tried unplugging all the fans and the whine is still there. My best guess is the pump. I have a DD 12V pump. It is put on top of some of those packaging foam stuff. If it is the pump, it didn't use to be like this. What can I do to stop the whine?
 
Did you put your ear close to all the components to get a better idea of where it is coming from? I was fixing a computer lately, with the same problem.. and thought it was coming from the CD-Rom. It was actually coming from the HDD.

If you put your ear to the pump and here it loud and clear, then you may want to contact the company and ask them about it. It could be rubbing up against something, or need to be cleaned. Not positive, but good luck.
 
when you say you have the DD12V, you are referring to the LaingD4 and not the LaingDDC right? If you are referring to the D4 it is a notoriously loud and noisy pump. For some users it is very quiet but for others it is very noisy. A common complaint is a loud whining sound coming from the pump. Make sure you have no bubbles in your system at all, and also try to make sure that the tubing going to the pump inlet is completely unrestricted, not sure if that will help but it is worth a shot.
 
If it's not the pump it could be you PS or MB getting ready to go. I've heard that capacitors can make a really high pitch whine for a while before they pop.
 
OK, I put my ear next to the pump and that is definitely what's causing the whine. The pump I have is the one that runs on 12V from my psu. I have no air bubbles at all. It never used to be this loud before though.
 
I have a MCP655. I'm having the same problems. (this is after 3 days of 24hrs use. it started to make this super high pitched noise.)

I am 100% positive that it is the pump because I disconnected the molex connector and the noise disappeared.

:(
 
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