Can't use two monitors while gaming
This has been as issue I've had for over a year now, but I always assumed it was due to a rubbish processor or motherboard. Recently I replaced both and it's still happening so I've come in search of help!
Basically I have an i7 4790k, 16GB RAM, 750W Corsair modular PSU and an AMD r9 290 4GB - I can run two monitors fine if I'm just doing Windows stuff, can use both DVI ports, or HDMI, or whatever. That doesn't seem to be a problem. I generally have the extended desktop on just to give me some more space. Now when I used to have a 7970 I could play games like DayZ or World of Warcraft and have a map or some information on the other screen without any issues. Now with the r9 290 if I do this after around 10 minutes both screens go blank, the game is still running in the background, but the screens just say there's no input. After a little while you can hear the game's audio glitch out and the PC crashes, or this also happens if I unplug one of the monitors. I have tried updating the drivers (this has been happening for a long while) and the only component that I have that I've always had this issue with is the GPU.
Sadly I've had it too long to RMA it and it was a gift from AMD anyway so there's not much I Can do about taking it back, I also don't have the money for a new GPU anytime soon. Anyone any ideas what could be causing these crashes or how I could solve them? At the moment my workaround is to unplug one monitor whenever I run any 3D games, which isn't ideal.