PCI-E First Slot Faulty?

kotsumu

Distinguished
Jul 9, 2009
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18,530
I have a eVGA 3-way SLI for a long time. I had my 5870 installed on the 2nd PCI slot that's x16/x8 for a long time as well. However, recently I decided to add a new 5870 to xfire. I added it to the first slot the x16 slot. Now my monitor and other things are hooked up to my original GPU (I made sure xfire is enabled and I checked TechpowerUP-Z it shows 2 Core on GPU) but if I hook it up to my new GPU, it won't show anything. I booted in with my monitor hooked up on my first GPU, it won't load drivers for it and screen resolution will be really crappy. Catalyst Control Center will not detect a GPU.