Hi
So I've been having intermittant issues - doesn't happen all the the time, but...
Playing games like World of Warships, Warthunder, Battlefield 1. Every so often the game will freeze - could be mid battle, could be in the "hangar", but it freezes. Sound continues, then after about 10 secs I get a black screen, then about another 10secs later it appears the signal is lost to the monitor (the light on it goes from blue to amber).
I need to do a hard reboot to get the PC going again.
My System:
i5-4570 CPU
Gigabyte Z97P-D3 mobo
16gb DDR3 RAM
Radeon RX470 Video Card
Corsair CX550 PSU
Samsung 750 EVO 500GB SSD
I have the latest video card drivers and mobo bios - what could the issue be? Could it be the GPU is about to die?
I was about to upgrade the SSD to 1TB tomorrow (not because of this issue - just to have more capacity) - should I in fact be buying a new video card?
Thanks!

