280X Sapphire Crossfire logo no light

Brianbrain

Honorable
Feb 13, 2013
8
0
10,520
I have this problem where one of my video cards won't light up. When I had the second card in the last PCI slot it would be fine but now in the second PCI slot it does this. When I first boot it will light up but when in Windows it will turn off, the light also comes on when I disable crossfire but when enabled it will be off. Only the first card always lights up. I also switched out the crossfire bridge but that made no difference.
2014-10-22153947_zpsa02acc0c.jpg
 
Solution
Perhaps the card isn't being used unless you're actually running a SLI enabled application. Have you tried to run a SLI enabled Game (assuming you have SLI configured) to see if it comes on?

Brianbrain

Honorable
Feb 13, 2013
8
0
10,520


I launched a game and it did turn on, you're 100% right thanks!