Noise Reduction

[Geek #1]

While adding a number of fans improves cooling, it can increase the drain on the ear. There is a sound proofing product called DYNAMAT, it is used to dampen noise inside cars and is available from most Car audio centres.

It is self adhesive and only maginally increases the case temperature.

Adding rubber washers to the screws holding the fans can also help reduce vibration.

[cookin chef]

I heard about that too!!
There was a computer project done on that too a little while ago!!
Unfortunately, I no longer remember where I saw that. :(

The person who did that project claimed it was very quiet in the end that he could let the computer run and it wouldn't wake him up from that noise anymore.