recently I bought Sapphire Rx 480 Nitro+ , make a fresh windows install and download the latest crimson drivers.
But I notice that on every first boot my GPU is under full load and the temperature start rising.
I do the following steps:
check for malware software(bitcoin miner ....), nothing found
switch between v bios, no difference
in the end uninstall the video drivers and install previous 16.7.2 and for the moment this action fix my issue.