Replaced Hard Drive, now can't get OS-X installed.
Hi,
My MacBook Pro A1278 had bad Hard Drive. I replaced it with a new Hard Drive, but I just can't get the OS installed.
It only boots up to the Grey Apple Logo and repeatedly beeps three beeps.
Tried removing the RAM & re-insert only one RAM module at a time still will only boot to three beeps.
Any ideas??
Thanks.
Is this a good question?