e3d hotend on prusa i3x

[drixtc]

hello I'm trying to mount the e3d hot end to my prusa i3x
but one problem I don't know where to connect the fan
the small fan only the have 2 wires red and black but the geeetech motherboard only have the mount for wire with 3 wires red blue and yellow
I don't have to match knowledge of this topic so I'm just wondering if someone can help my out so i will not blow up my printer.

and maybe need to upgrade the power supply as well don't know.

[Mark]

just need to connect them to the + and - , the S signal pin is not used.

[drixtc]

so just the plus and minus on fan 1 for example

right ?

[Mark]

yes exactly.