Good Evening,
I purchased a new Giggabyte gtx660 to SLIi with a card of the same make and model. I tried to SLI them on my GA-Z68X-UD3H-B3 board, but my PC wont boot into windows. I purchased a new 750W power supply unit and both cards work on their own. When both are in the board, it will not boot regardless of the SLI bridge being connected. Both cards work in both the top and bottom PCI-E slot if they are alone in the machine. I al really out of ideas here. Any help would be greatly appreciated.
I have confirmed all of following:
- All connections are firm.
- The BIOS is up to date.
- Both cards are the same make and model.
- Both cards work if alone in the board.
- Both cards work in both
Thank you for taking the time to help.
