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Decreasing Fan Voltage?

1

1337PyR0

Junior Member
How can I decrease the CPU fan voltage to make it run slower/quieter... This vantec is too loud and since its back to stock speed, I dont need that extra cooling... Any software or BIOS settings, etc. that make this possible?
 
The way I slow down the fan is to: connect the RED fan wire to +12V and the BLACK fan wire to +5V, using a spare connector as a source of the voltages. This will run the fan at +7V at a slow, quiet, RPM. Test the fan by stoping it with your finger and letting it start up again. Do this about 10 times to be sure that the fan will always start with 7V. I've done this on my machines for many years now and have not had any problem from it. The temp will rise a little, but if the heatsink is large, it still keeps things cool.
 
Cockeyed:

Which lead is the +5V? What do you mean by spare connector? Do you mean a spare connection from your PSU?

Sal
 
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