RX 580 4GB - 20.4.2 drivers - Win 10 (1709)

@epoch 375 - PM 5.2c 31.7 MH/s (stable)
@epoch 376 - PM 5.2c 28.8 MH/s (stable)
@epoch 376 - PM 5.2d 29.8 MH/s (in testing)

I'm still using PM 5.1c for 8GB cards, stable so far.

Thanks PM