My Dad has contacted me to ask for help with his PC, which has started randomly freezing in the last week with a 'DPC_WATCHDOG_VIOLATION' BSOD. He says that after rebooting he gets a warning that Radeon Wattman has been reset to default but also that the BSOD only seems to occur when he's browsing, although that doesn't rule out the GPU driver as it's obviously using it to display the web pages. He done a virus and malware scan and sfc /scannow. As AMD haven't released any Windows 8.1 drivers for years, the drivers for his GPU (RX570 I think) won't have auto-updated. He's sent me the mindumps which start on 2 September and some identify atikmdag.sys as the problem but others don't. I've attached the most recent one and would be grateful if someone could take a look and try and help me fix this for him.