I would check temps first. It might just be dirty inside.
However a 300w psu for a system with an RX580 is kinda strange. Not that overwatch is extremely demanding. But you might be hitting close to that 300. If i remember correctly the RX580 uses like 200w+ and the R5-1400 uses 100w+ during gaming.
Asrock Z270M Extreme 4
Seasonic Prime Snow
enthoo evolv matx tempered glass
windows 10 pro
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Last edited by ozlay; 06-30-2019 at 04:11 PM.