About 4,5 years ago I bought a P183 case with a CP850 PSU, filled with a bunch of 120mm fans that are all pretty quiet at idle (mix of Scythe and Noctua). In the past year or so I've been noticing increased noise while idle (during gaming it doesn't stand out any more). I've traced the noise to the PSU fan, which sounds worn. It makes a pulsating, almost clicking, noise, and also a whirring noise when you hold your ear next to the case. Seems it's time to replace the fan.
Some links with info on the current fan:http://www.silentpcreview.com/article971-page3.htmlhttp://www.jonnyguru.com/modules.php?na ... 3&reid=142
Apparently it's a Protechnic / Magic 120x25mm 0.52A fan that's rated for 12VDC, 93CFM, 2800 RPM, at 42 dBA.
Since it's a PWM fan (4 pin header) can I just plonk any other PWM fan in there, even though most are built for much lower RPMs than the 2800 RPMs of the current fan? Won't that confuse the fan controller in the PSU if it expects a certain RPM?
Any recommendations or doesn't it matter that much as long as I get something half-decent?
Thanks in advance for any help you can give me, I'm not afraid to bust that bad boy open but I haven't done this often enough to really know what'll work or not.