loud fans cisco 2950 switches lab environment

[alphabanks]

Guys I'm having some serious sound problem with some 2950 Cisco switches that I have in my CCNA lab these switches sound like a jet I've gone in and made sure the fans are clean and I even replaced one they still are too loud. So I have a few options I can run them without a fan which I really don't want to do but I want to look at two other options. The first option would be to put a heat sink on the chip that's producing heat I also thought about cutting a whole in the top and mounting a 120mm fan. Anyway guys let me know what you think here is a link below where someone did cut out a whole for a 120


http://www.instructables.com/id/Quietening-an-ethernet-switch/

 

[Metraon]

Cant you buy cheap fans from ebay and change them ?

 

[DouglasteR]

Just cut the grate behind the fans, leaving a complete hole for them.

Thank me later

 

[alphabanks]

So by cutting the grates you actually were able to reduce noise to an acceptable level also what tool did you use in order to make the cut? I was getting ready to order this so I could put the 120mm on top

http://www.amazon.com/IRWIN-373412B...23&sr=8-8&keywords=4-1/2+in+Bi-Metal+Hole+Saw

 

[/usr/home]

http://www.ebay.ca/itm/130808015721...X:IT&_trksid=p3984.m1439.l2649#ht_1642wt_1139

I just purchased these for a noisy 3Com switch. I will let you know how well they work, but they will definitely make the fans a lot quieter.