Cannot turn off Mac or restart without resetting nvram
I got a Macbook Pro 2011 15" with Snow Leopard OS.
I cannot restart it without it starting to beep (3 beeps repeatedly).
If I turn it off, it just beeps and I cannot turn it back on until its out of power.
If I restart it, I can get it to boot by pressing alt+option+r+p untill it beeps twice and boots up.
its frustrating, and i cannot upgrade iOS without restarting.
What can be the problem ? maybe the ram slot ?
Is this a good question?