Quieter PSU Fan?
- Thread starter Mattu
- Start date
No clear pisture of it on your link. With a cheap supply you get a cheap fan made to use. Without matching the same size and voltage(usually but not always 12v) it may not work out too well. Most fans sold by themselves are intended for mounting inside a case or the side cover.
If the fan in the supply is an off size instead of a standard 120mm seen on most it wouldn't work out. The best thing for noisey fans in generic supplies is replacement of the supply.
If the fan in the supply is an off size instead of a standard 120mm seen on most it wouldn't work out. The best thing for noisey fans in generic supplies is replacement of the supply.
The one way to replace would be to contact the manufacturer directly to order a replacement that way. That will insure the voltage and fan speed is matched to meet the requirement. When you put a 20" tire on a rim meant only for a 17" tire you don't get very far. Since most on 12v you "could" try a replacement. But if you cook it you're on your own if it wasn't a good match! 
You could find a fan the same that will run but not at a fast enough speed for adequate air flow. A faster fan? That may be even more noisey! 
You could find a fan the same that will run but not at a fast enough speed for adequate air flow. A faster fan? That may be even more noisey! 
Livzz
New Member
what your looking for is how much air the fan moves, rather than RPM.
Look on the fan you want to replace, and find something like a model/serial number. whack it in google and look for a specs sheet.
The amount of air a fan moves is measured in Cubic Feet per Minute (CFM).
It should also tell you how loud it is (in decibels, dB).
The fan you replace it with should move a similar amount of air.
I'm replacing my psu fan, my current fan is about 30 - 40dB - which is really loud. the new fan is only going to be 19dB.
I posted about it in this forum, the threads called "replacing PSU fan". have a read of that, i think thats what your after...
Look on the fan you want to replace, and find something like a model/serial number. whack it in google and look for a specs sheet.
The amount of air a fan moves is measured in Cubic Feet per Minute (CFM).
It should also tell you how loud it is (in decibels, dB).
The fan you replace it with should move a similar amount of air.
I'm replacing my psu fan, my current fan is about 30 - 40dB - which is really loud. the new fan is only going to be 19dB.
I posted about it in this forum, the threads called "replacing PSU fan". have a read of that, i think thats what your after...
Matching the fan size up as well as how deep the fan guard is and connections is another thing that would have to be looked at. You don't want to tear apart the guard to slap it in the supply or you may hear even more noise!
You first have to measure the present fan and how it mounts inside the psu. Then you see how the power is connected. You probably won't see the usual molex type connector depending on how well the supply was made. You don't want to create a fire hazard by wiring a substitute fan in wrong there and have it cook inside the supply. Here's a link for case and supply fans. http://www.gocna.com/en-us/dept_63.html
You first have to measure the present fan and how it mounts inside the psu. Then you see how the power is connected. You probably won't see the usual molex type connector depending on how well the supply was made. You don't want to create a fire hazard by wiring a substitute fan in wrong there and have it cook inside the supply. Here's a link for case and supply fans. http://www.gocna.com/en-us/dept_63.html
Be very very very careful when you do this. There is a lot of electricity in there, even when it is is off and not connected.Ok thanks guys, I will probably take it apart (PSU) and see what I'm dealing with.
Also, your fan is most likely 12v. Every power supply fan that I have dealt with has been 12v.
The main problem going inside a power supply is the charge seen with the capacitors themselves. Those can be seen as large storage batteries. You don't stick anything in there unless you know precisely what you are doing. The best advice anyone could give you here is to simply by a better supply that runs quieter to begin with. Save the old one in case the replacement quits for some reason as a spare. You don't want to discharge a cap with your fingers. zzzzzzzzaaappp!!!
.One way "if" you ever have any reason to open up another supply to discharge the caps is to first turn the breaker off, unplug the ac cord, turn the breaker back on, and press the power switch on the front of the case a few times while watching for drive lights. When none of those flash after a few tries a good deal of any remaining charge will be gone. That's called "recycling" the supply. Techs will lay a screwdriver across the "+" and "-" contacts when working on various things like power supplies to watch the sparks fly there.