I have a gaming computer with 2 AMD sapphire nitro Rx 590 graphics cards. I use two because a former friend who owns a computer company said the second would help with gaming (though I didn't see much difference). This morning, the light for the non-primary card was off, and produced a blink now and then. My device manager says it's working fine, but it's never done that before. I was just wondering if anyone knew if it's broken, and if it is, is it fixable?