I would suspect faulty RAM, and after doing some searching around on the net, it seems to be the most likely problem. Check out what MS has to say...
http://msdn.microsoft.com/library/de...kmsgs/6093.asp
You can take a look here to find possible solutions to the problem. Scroll down to the one labeled "PAGE_FAULT_IN_NONPAGED_AREA":
http://aumha.org/win5/kbestop.htm