press tab instead of del and try to see the bios version in the first post .. what it is ?
your fx8350 is 125w cpu and if you have revision 3.0 board it could be ok the first release bios fa should support it ..
if you have rev. 1.2 .. the bios version should be fe to support it ..
and if you have 1.0 or 1.1 .. probably a problem that bios should be much later to F9 to support it.