NVIDIA Code 12 Error

By brettm08
Dec 15, 2008
  1. I'm trying to use two monitors but my current video card (nVIDIA GeForce 6800) doesn't allow me to do that. So i went out and bought another video card (nViDIA GeForce 8400) and was told by the guy at best buy that it could run two monitors.

    So i put in the 8400 and installed it and then i got the code 12 error. The 6800 is still working. The 8400 is the one with the code 12 error.

    Both of the video cards only have a vga port. So will I be able to run both of these video cards to get the two monitors to work? If so how should i fix this?
  2. CCT

    CCT TS Evangelist Posts: 2,653   +6

    You likely have IRQ conflicts - try disabling LPT1 and/or one of your Com ports.
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