imac goes beep beep beep when I start it - and it wont start
I have an Imac 10.10.4. I upgraded to Yoshimite operating system. It was very slow so I inserted new RAM. 4GB (2 x2GB).
It was working until I was tried to install Spotify. The computer froze. I forced shut down and restarted. However it sats but I head beep beep beep and will go no further. Black screen
iMac