That DRM stuff is printing (notice there's a tdfx message, too? you don't have a 3dfx card, do you?) because DRM is either compiled into your kernel, or it's a module and it's loading.
Get rid of it in the kernel configuration, and rebuild the kernel, and that should get rid of that.
The problem, though... which chipset is that motherboard? Oh, wait, I see -- KT133. That might have something to do with it, I suppose...
Have you flashed the BIOS recently? I know the Epox 8RDA and 8RDA+ have buggy BIOSes for the moment; the next BIOS release should fix the problem. Maybe something similar affects the 8KHA+?
Have you reinstalled the nVidia drivers?