I figured I would give this a shot, since at this point I'm kinda completely at a loss as to why this isn't working.
I recently purchased a Maximus VII hero for a new rig I built: specs below.
- ASUS Maximus 7 Hero ATX LGA1150 Motherboard
- BIOS Update 3003
- Intel Core i7-4790K 4.0GHZ Quad-Core Processor
- Corsair Vengeance 16GB (4x4GB) DDR3-2133 Memory
- EVGA GeForce GTX 980 Ti 6GB Classified (x2)
- Corsair HX1200i 1200W PSU
- Samsung 256GB SSD (Running Windows 10)
But the problem is, the one GTX 980 Ti is NOT being recognized in the bottom red PCi slot (with or without SLI).
Both cards work individually when placed in the top slot, and the bottom slot CAN recognize a spare GTX 660 I had, but the BIOS, the Device Manager and the Nvidia Control Panel fail to acknowledge the bottom 980 Ti is there. There's no error message, it just doesn't show anything.
Windows 10 is completely up to date.
Below is a list of troubleshooting steps I took
- Updated BIOS
- Cleared CMOS
- Tested each graphics card in Slot 1
- Tested each graphics card in Slot 1 with a GTX 660 in Slot 2 (recognized)
- Tested each graphics card in Slot 1 and 2
- with and without SLI bridge attached
In addition I bought a 1200W power supply to make sure it wasn't any of the cords or a lack of power problem, cycled through a myriad of settings through the BIOS that I don't even remember. It seems I've tried everything under the sun to get that bottom PCi slot to recognize the 980 Ti, but it just can't.
This is a longshot, and I know this is a very specific problem, but if there's any help anyone can offer, I would be greatly appreciative..
Thank you for your time.