after 6 more hours make update to win10.. (i can't sleep.. here 4:54AM now)  
used AMD Driver 12.4.2 >>> i can see my GPU all work in device manager  
patch by 'atikmdag-patcher-1.4.7'
switch to compute mode by 'AMD-Compute-Switcher'


but,...
using Phoenix miner 5.2e and 5.3b still same, hashrate still not change like before..

here is the result:




buy a 8gb card.   the days with 4gb are almost done.
mine etc like everyone else will do



any suggestion to make RX480 back to 30Mhs..?
thanks