That error can mean hardware or software, and there are many reported fixes that worked for some and not others
I'm going to state the most obvious one and that is your physical Ram cards
Remove the internal Ram card(s) blow out all/any dust
Reseat the Ram cards (until they click back in)
Then try starting up again
If you still have further issues, I'd suggest to run a Memtest scan (some users leave Memtest scanning overnight, which is a good idea)
> Here's the Guide (
http://www.techspot.com/vb/post653029-21.html)to set you up with getting Memtest to start
EDIT
Actually run > CheckDisk (
http://www.techspot.com/vb/post672297-2.html) as well ;)