After reset P-Ram, startup gives Blue screen, spinning wheel, repeats.
Core 2 Duo 2.33 GHz Model A1211:
I replaced my internal hard drive with one from ifixit (the 7200rpm 500GB). I had preloaded the harddrive with an image of the old HD system (Snow Leopard 10.6)and confirmed that it would boot as an external drive. MacBook Pro, 2.33Ghz, Model 1211.
Installed the new drive and it booted up fine. But when I reset the parameter Ram by holding down Cmd-Option-p-r the Mac would repeated reboot, not show the gray screen with Apple, reboot, repeat untill I released the keys.
Now it will not boot, it shows gray screen with Apple and spinning wheel, goes to blue screen with spinning wheel, then goes to blue screen with spinning wheel and repeats forever. I have to hold the power key to turn it off.
Booting with an external drive works fine and the system runs fine.
Do I need to open it back up and replace the Parameter Ram battery, or simply remove it?
Is this a good question?