I have exactly the same problem, i.e., both no temperatures in the BIOS and the same shutdown problem. Did you find a solution to this problem?
Sadly no . I have found an additional issue as well, the wake up function to start the computer at a chosen time (in the bios) doesn't work as well.
And i can't contact support because I'm at work when they work.
If u find the solution please post it as well thanks.
As I had just bought the motherboard I sent it back to my retailer. They tested it, found it faulty and sent me a replacement, but didn't state what the fault was. I rebuilt the PC with exactly the same components and the new motherboards works fine.
I think we both just had faulty motherboards. Nothing to do with components, drivers, etc.
Hope this helps?
I followed your advice and returned the motherboard. Since i have the replaced motherboard the issues are resolved