Today just as I upped a Tiger my screen went black, there was a hum and monitor message "no signal". The card is a Radeon R9 390 directx 12 GV-R939G1 Gaming 8 GD 8GB 512- bit GDDR5 PCI Express 3.0 HDCP Ready ATX video. Should I stick with the R9 390 or go for one of the RX 480 cards?