It boots up but goes no further. I assume this is a frozen screen. What is the likely cause, and what is the cure?
This will sometimes happen when the RAM memory starts to go.
if you have 2 pieces of ram, try removing one, if it continues to freeze switch them. If you only have one piece of ram, you may need to pick up new ram.
there are other possible reasons, possibly hard drive, but ram is one of the most common reasons for freeze on startup.
here is hoping.
Good luck
SOURCE: Macbook pro screen boots to black.
Try pulling the battery out then holding the power button for 10 seconds. Put the battery back in.
If not search macbook pro recall apple has extended the warranty on some models due to a bad graphics card.
SOURCE: My Macbook Pro wont boot - stays on the blue screen
The fact that the "BONG" sound (or better known as the MAC CHIME) does come on and nothing further means that the computer cannot find your hard drive or (sometimes worse) cannot find the operating system. This means that you will have to remove the hard drive... then insert it nice and firmly again. Try now to boot. If nothing happens then your drive has gone faulty and it could mean that you may have lost your data... NOT NECESSARILY though.... What I mean by that is that you may still be able to access the dat when you connect the "faulty" drive to another computer via USB with an external casing and then get your DATA off it.
SOURCE: on booting up my macbook pro I get a lot of
Do the patterns of distortion change as you are twisting and bending the laptop body? If so, you're dealing with a logic board issue. Probably your GPU is not soldered properly anymore. Go to the Genius bar first, if they can't help you can try a self repair or send it to a third party place. There is a free Macbook Air Repair guide that will show you how to do it. iPad Repair
SOURCE: Hello, since yesterday my macbook pro is frozen,
Take the 2 RAM chips out and make sure they are compatible with your computer and make sure the RAM chips are not broke or defective. Re-insert new RAM chips and make sure they are firmly inserted in their bays. Also, install disc 1 of your 2 disc gray set and hold down C key to boot from disc. Then click on tab for install English. Then go to the top of the screen to utilities and click on disk utility. Now on the left side of screen select your hard drive and then at bottom middle of screen select repair disc. Then when that's done select repair hard drive. Now quit the disc and choose restart from hard drive. See if that don't help ya any. Also, could be bad boot sector in which you will have to save all your data and re-install the operating system. If that don't work, then look into getting a new hard drive and then re-install the operating system. Take your computer into the Apple store and have the Apple dorks look into it if your still under warranty, because you just dropped down some serious cash on this machine.
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