Chosen Solution
So I searched around but couldn’t find anyone with exactly the same problem as me…Most people’s macs who turn on but the screen is black stay on, but mine doesn’t. I’ve reset SMC, PRAM and done RAM test, ie taking each one out at a time and running it with each different one multiple times. When I turn it on, I hear the HDD start spinning, and fans, but then they all stop and it turns off. The magsafe adapter works and the battery charges. The screen stays completely black the whole time. Any help would be greatly appreciated. Thanks, John
Try holding down the power button for more than 10 seconds, but less than 30. If it boots immediately release the power button. You are attempting to force boot and EFI check the box. FWIW I would not try to run Mavericks or higher on that box. You are pushing the envelope very hard, and won’t get full use from it anyway. Mavericks is known to have a plethora of problems related to sleep, deep sleep and restarting especially with older boxes. Pre-Installed MacOS: X 10.6.3 (10D2094) Maximum MacOS: APPLE CLAIMS This system fully supports the last version of OS X 10.8 “Mountain Lion” and the current version of OS X 10.9 “Mavericks,” except for “Power Nap” and “AirPlay Mirroring” (which also requires an Apple TV 2nd Gen or higher).
Did you every get a solution to this problem? My 2010 mac book pro is doing the same thing. Michael
