using low voltage on DC fans

Greg Smith
 

I am using an ATX power supply for my Tortise switch machines.  I have a number of 3.3 VDC and 5 VDC wires that at present are not being used.  Can I use 3.3 or 5 VDC on 12 VDC fans without damaging the motors in the long run?  They run okay, a bit slower than when on 12 VCD of course.
Greg
ps - I am going to set the fans up behind my Digitrax Command Station and Boosters for a bit of extra cooling.

Join w4dccqa@groups.io to automatically receive all group messages.