crwdns2893792:0crwdne2893792:0 jayeff ,
Hi, Here’s a link to a [https://www.youtube.com/watch?v=PitR1QFZ91c|video] that shows how to disassemble a MSI GS70 laptop. At 4:44 minutes into the video it shows the systemboard, together with the fans, being removed from the laptop. It appears as though you have to remove the systemboard to get access to the fans. Hopefully this is of some help.