[arboristman]

c/p by ahah87:

Quiet Fan plug-and-play modification
Is the SV8000 version 2 fan driving you crazy with noise? Are you having to turn the power switch off in the back? Then this modification is for you.

Here is the quiet fan modification I did. This is a plug-and-play modification. No cutting of wires or soldiering. You can also easily revert back to a stock OEM receiver if needed for warranty work. This modification costs about $18. It drops the noise level from about 30 dBA (noisy stock OEM) to about 10dBA (whisper quiet).

I can now leave the power switch in the back on all the time, and it is very quiet. You can put your ear right up to the unit and can't hear it. It also pulls a lot of air through the unit. I think this fan even pulls more cfm of air through the unit than the stock fan. The unit is very cool, and it is left powered on all the time.

#1: Buy a SilenX fan (40mm X 10mm) and a SilenX fan speed controller.

#2: Remove the 5-volt OEM fan and unplug from the 5-volt connector.

#3: Install the new SilenX fan. Use the silicon plugs included instead of metal screws. This cuts down on case vibration noise.

#4: Install the Fan Controller. Plug the SilenX fan into the Fan Controller.

#5: Unplug the 12-volt 4-pin molex connector from the 8psk module. Plug the 4-pin adapter between the original connector and the 8psk module. This is so the Silenx fan gets power in-line from the original connector and the 8psk module. The Silenx fan is a 12-volt fan, not a 5-volt fan like the OEM fan. You can't connect it to the 5-volt connector the OEM fan plugs into. You have to put it in-line with the 12-volt connector. This is better, because a 12-volt fan is quieter than a 5-volt fan.

#6: This is the final installation. The in-line 12-volt connector, to the fan controller, to the SilenX fan.

The last step is to turn down the fan speed slightly. The Silex is 14 dBA at full power (3,500 rpm). Getting that last few hundred rpm really makes the fan put out more noise. If you slightly turn the speed down to about 3,000 rpm the noise cuts down to about 10 dBA and pulls just about as much air. You can fine tune this fan controller to where you feel is best for your situation.