About a year ago I build myself a rig, mainly for gaming. Not high end, but still:
- i5-4460 CPU
- 8GB RAM
- nVidia GTX-760 graphics card.
- Windows 10
Today I was playing a game, when suddenly both monitors went dark. I rebooted, but one monitor remained dark, while the other had switched to 1048x760 resolution (which I was able to reset to 1920x1048).
But that monitor also has lots of graphics errors, particularly red, broken, vertical lines in dark areas.
When I started the nVidia tool, it installed a new driver, told me to reboot, but that didn't fix the issue. When I started the tool again, it again "updated" the driver, and so on. It won't let me do anything else.
When I swapped the two DVI cables at the back of the graphics card, the symptoms switched between the monitors, suggesting that it's not an issue with either the monitors or the cables.
Are there any tests that I can do to check whether it is indeed the graphics card that is now broken? I don't want to pay good money for a new card to find out that it was something else.