If you are getting no video then you can't make BIOS changes. It would be nice if you could get hold of a speaker (even pinch one out of an old case). Then we could perhaps identify the problem from the beeps. I would be removing the RAM chip[s] and reseating them, making sure they are properly clipped in and firmly seated.
Make SURE the power is DISCONNECTED from the wall socket before going anywhere near the RAM chip[s]!
"Hardware: the parts of a computer that can be kicked!"
Please don't send me PM's for support. Post in the forums for everyone to benefit.