back cooling fan Ultimaker 2 specs

[insight01 3]

Does anyone know what the power tolerance for the back fan port on the Ultimaker 2 board is? The standard smaller fan that comes stock with the Ulti2 is a DC5V 0.58W fan. This small fan is what normally runs off the board. However,

I am currently running a DC12V 0.08A fan off this back fan port for cooling off prototype hot end systems. The fan is running fine for now. However I would like to know if the back fan port on the Ulti2 board can handle this power pull in the long run? Also, can the back cooling fan speed or power be changed in Cura or must it be done in Marlin?

 

[insight01 3]

The answer from Ultimaker support is that the Ulti2 board supports a DC5V fan. However, the DC 12V fan runs just fine and should not damage the board. Good enough for me. Hope this helps anyone interested in mods to the current system. No need to change firmware settings just plug in it and play.

 

[insight01 3]

Found some more info that might help anyone wanting to use the back cooling fan outlet on the UM2. This is from Daid replying to another post about the power load the back cooling fan outlet is capable of on UM2. Daid "No need to worry about the 5V fan connector, you can safely draw more then 2A out of it."