Links:

https://www.techpowerup.com/download/ati-atiflash/

https://github.com/caa82437/PolarisBiosEditor

https://www.techpowerup.com/download/techpowerup-gpu-z/

Memory strap:

777000000000000022AA1C00B56A6D46C0551017BE8E060C006AE6000C081420EA8900AB030000001B162C31C0313F17

You will get low temperature and 32Mh for Ethereum Single and 130W at the wall /Rig with 6 GPU 850W at the wall/