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white screen

Hello, I am trying to fix a Macbook pro A1260 for a friend. my question is when I boot up the Mac all I get is a white screen. could this be a ram issue?. thank you for all you respsonse. I forgot to add that the machine does not make any beeping noises also one I get to the white screen if I press the power button the machine will turn off right away. thanks in advance

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I'm having this issue as well. I just replaced the RAM and it was working fine, then someone dropped the computer, now this. I tried refitting the RAM with no luck. I tried putting the old RAM back in with no luck. Tried one stick of RAM (don't know if that's possible) and then I just got a black screen, I think. Now back to the sticks that were in it when it was dropped and still getting the white screen.

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Hi! Does the machine chime or beep when you power it on?

First I'd try holding down the option key as you boot up. If the option menu appears, this is a good sign, and may just mean that the laptop can't find a bootable volume. In this case, I'd try booting from the restore media, and see if it will let you reinstall the OS. The default settings will not erase data on the drive. If the screen which asks you to select a drive to install to does not show any drives, pull down Disk Utility from the top of the screen, and see if it lists the hard drive when the utility appears. If it does, run a disk check on it to see it that reveals anything, and then format the drive and install the OS.

If the laptop doesn't chime, or option mode doesn't appear, I'd try resetting the PMU first and then the PRAM. If that doesn't help, I'd reseat the RAM, and try powering on with only one module installed, and then switch slots, in order to test for a bad slot. A bad slow populated with RAM will generally cause the machine to not boot.

Good luck!

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Another good test is to boot it, wait for a few minutes, push the power button again, and then push enter. If it shuts off, the problem lies in the display, more specifically the display data cable or LCD panel.

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i have a mac book and it chimes and we went to a place to see what was wrong with it and they said they will fix it for 300$ and we did not want to spend all that money and we still have the mac book and before we had it the screen was working like 2 years ago and it was under other computers do u think the computer screen is broken?

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arodis さん、ありがとうございました!
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