what '-driver install' do?

*Driver installed successfully
*reboot
*GPU-Z show the same driver version
 

Also I had Samsung Polaris with bat memory ~1860mhz. I flashed stock bios without custom timings, and -strap 1  show only 23mh. Then I flashed-back CUSTOM timings bios and it show 28.5.

So maybe miner do not have -straps for polaris_samsung@1860?