Mainboard temp 118C.

Those temps are well within spec. Could be the ambient is higher or maybe airflow has changed slightly in the case (dust, loose cable blocking a specific path etc.). Again not something I would worry about if you have not experienced stability issues.
 
I don't know why, I've opened up my motherboard and nothing seems to be blocking the fans, I've cleaned them again really well, and still seem to be getting really high temps, I've been playing Dota 2 and that isn't a kind of game that rises your GPU temp to like 70C but for me it does for some reason, never did this but started since yesterday, any idea? 🙁 I use to get 35C for Dota 2 and now 70C. Funny thing is, I alt-tab and my temps are back to 35C while game running, when I'm actually playing they go up to 70-75C. Never did this before.