Chosen Solution
MacBook Pro 13" does not start loading, it chimes, apple logo appears and after all it display message saying “You need to start your computer. Hold down the Power Button until turns OFF, the press power button again”. I’ve tried reinstalling the MAC OS X, change the HDD with new, install new RAM but still the same problem….plss help me figure out this problem…would it be a logic board problem?? thankss Update Before the problem occured, the system which i called it MAC OS X does not load and display the message “You need to start your computer. Hold down the Power Button until turns OFF, the press power button again”. The first thing I did is to boot up from the MAC OS(leopard) installation CD,so that i can run/used DISK UTILITY but after several minutes(2-3 mins) it will not booting up and display the message. Secondly, i tried installing new HDD but the problem still persist.Third thing i do is reseatting the RAM and replacing with new RAM but still the same problem…WOULD IT BE THE PROBLEM IS THE CONNECTOR OF THE HDD TO THE LOGIC BOARD, IT SEEMS THAT THE SYSTEM CAN NOT DETECT THE HDD??
Hold down Cmd-Opt-O-F while turning on the computer to drop into Open Firmware. Type these lines: reset-nvram set-defaults reset-all That will clear NVRAM etc. and will automatically restart the system. That failing try to remove and reinstall the RAM. When u do make sure u apply enough pressure so that you feel a slight “thump”, then you’ll know the RAM is properly seated. Please try that, and get back to me. But, try with the old RAM first if your new RAM is third party RAM.
Try starting up from your system installation disk then run disk utilities and repair your drive.
