r9 390 malfunction

Hello everyone. I have a little problem with my friends gpu. That is an R9 390. So the error is the following. Yesterday we update his OS from Windows 8.1 to 10. Everything was fine but when he started to play some games, the gpu usage start jumping and ingame his fps drop from ~80 to 10-20...

Hey everyone. I got a driver update pop-up (didn't get those until this year) for my R9 270X. After updating/restarting the card's driver tab on Window's Device manager (8.1Pro), shows the same driver version as well the same driver date. Is this normal? I remember about a month ago the same...