Eximo :
Not being able to open the BIOS kind of stops it right there...can you elaborate on that?
Would need the exact CPU model and motherboard as well. (There were several revisions of the Athlon X2 series)
the MoBo is Biostar nf61s-m2a v1.0
but don't know how to open the bios (i tried every single f1-12 and other combinations)