What driver version?
The Wattman issue means your game crashed and when it resumed it restarted Wattman.
*Mi PC its using Windows 10 (all updates)
* Drive: Crimson 16.10.2 ( came on de CD). I tried too with some drivers like 17.xx.xxx with no results.
* Crashes on World of Warcraft, Rise of the Tom Raider
Those crashes appears when i have a couple of hours playing ( like 2 per day)
Hope someone can help Me, Sorry for my poor english