Unfortunately for sapphire rx552 cards with memory elpida of 6000 MHz running at the limit does not fit the version 
During the warmup the cards start to give out memory errors in HWInfo and after a while the blue screen, reducing the frequency to 1800 MHz does not help, apparently it is necessary to look for other timings for now I remain on version 031f.
During the warmup the cards start to give out memory errors in HWInfo and after a while the blue screen, reducing the frequency to 1800 MHz does not help, apparently it is necessary to look for other timings for now I remain on version 031f.