It seems like you're in the middle of a conversation but decided to start a new thread without including any of the context. A lot of this is just confusing text and random asides, you may want to trim your questions down to the essentials
77 is far too hot. There's no chance that the CPU is actually at 8 degrees on idle, it's just that reported measurements for AMD CPUs tend to be pretty awful. Use the thermal margin reported in AMD Overdrive - in that software, it tells you how many degrees you have "left" before you get into the trouble zone, so you want to keep it above 0.