When i try to install OS on a platform whith an onboard video installation halts on a random phase (Ex.: 20%, 31%...).
Computer doesnt respond to any keys and the screen is filled with "ants" and other artifacts. When i tryed to install a PCI-ex VC the result was the same.
I tried to dissable frame buffer in bios - no change 
Any ideas how to override this?
My test pc is: AMD x2, nForce MB with GF6100 integrated video.
Sorry 4 my English