Bottom Fan connection

Hi, I have a M200 Plus with a V3.5 motherboard, and I have a small problem. I removed the bottom plate, and the fan became unplugged. The socket shown in the help video labelled 24v fan appears to have something else in it, so could someone let me know where this fan plugs back in.
Thanks
Ian

Hello Ian,

I believe you meant a 5.3V motherboard.

If this is a V1 device (mechanical endstops):

or a V2 one - optical endstops - either of these slots: 24V1/24V2 on the optical endstops extension PCB:

image

Best regards
Karolina