Latest version is v9.5:
-tt set target GPU temperature. For example, "-tt 80" means 80C temperature. You can also specify values for every card, for example "-tt 70,80,75".
You can also set static fan speed if you specify negative values, for example "-tt -50" sets 50% fan speed. Specify zero to disable control and hide GPU statistics.
"-tt 1" (default) does not manage fans but shows GPU temperature and fan status every 30 seconds. Specify values 2..5 if it is too often.
Note: for NVIDIA cards only temperature monitoring is supported, temperature management is not supported.
Note: for Linux gpu-pro drivers, miner must have root access to manage fans, otherwise only monitoring will be available.
@Claymore: are temps and fan speed available for RX 5xx with latest driver in Windows 10? They display for NVIDIA cards but not for the 5xx series.
/c