Currently Being ModeratedJul 28, 2013 2:50 AM (in response to andrewhardie7)
A beeping sound is the Power On Self Test telling you there is a hardware problem of some sort with the machine.
If you have recently installed RAM into the machine, it's either not seated correctly, the wrong spec, or defective and you need to replace the factory RAM and/or try again.
All other issues, make a appointment for service with Apple.
Currently Being ModeratedJul 28, 2013 2:55 AM (in response to andrewhardie7)
You may try the procedures in this support article: