You may try only x86 32bit images, but NV4x chipsets implementation may be buggy,
if I recall correctly mouse cursor never worked and lately, even with threading patches to avoid GPU lockups,
the system was not booting anymore when I last tried with GeForce 7600/7800.
I suggest to try with latest official nougat-x86 (7.1)
Please report issues with dmesg/logcat/dumpsys in this thread.
Mauro