Build list for anyone interested: G.Skillz trident z 16gb Crosshair hero 8 motherboard GeForce GTX 1070 gpu Ryzen 3900 cpu Cooler Master MasterAir MA410M WD_Black SN750 1TB

So I finished the build about a month ago, and since the initial boot my cpu temps have been a little high. As in mid to upper 70 at idle. I am working on a Bachelor in computer science and almost only use it for school work so it is never really under high load. However my girlfriend mostly uses it to game, and has been complaining about it shutting down I'm the middle of her playing. Well I finally had time today to look into it. I installed some software to monitor the temps better and told her to play so I could see what was going on.

I immediately notice most of the pc is running in the 30s but the cpu temp is in the 80s. When she boots up her game (star wars old republic) the temps jump to the mid 90s sometimes getting into the hundreds. This is very clearly a problem. I tell her she needs to go ahead and stop playing while I figure it out.

So I do a bunch of research and figure I must have done something wrong in the build, and decide to open it, take out the cooler and reapply the thermal paste and basically see what I see.

So I do just that, remove the cooler and low and behold what do I find on the coolers heat sink? A plastic sticker that says in big red letters "WARNING REMOVE THIS LABEL BEFORE INSTALLING PRODUCT".

I am clearly an idiot and plan on dropping out cuz I clearly should not be near computers.

Tl;dr had massive overheating problems because I forgot to take the sticker off my heatsink.