@dc42 On the v0.8 boards there is a jumper on 12V_EN already. On the rev A the 12V_EN pins don't have a jumper so when the user switches the Fan jumper select nothing happens on 12V UNLESS there is a jumper on 12V_EN. 0_1528470665519_cbd75ff8-d827-4856-8d20-f29e77d9cb77-image.png https://i2.wp.com/betrue3d.dk/wp-content/uploads/2017/06/Duex5-jumpersfor12v.jpg?ssl=1
Is the 12_V EN - I bought two v0.8a boards and both did not have a jumper on them. So I assumed the 12V line was broken.Just a heads up for people who get the rev A duex5