TS2570: Mac OS X: Gray screen appears during startup
Learn about Mac OS X: Gray screen appears during startup
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Helpful answers
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Apr 26, 2012 1:56 PM in response to tishfromvaby Limnos,Intel-based Mac Power On Self Test RAM error codes - http://support.apple.com/kb/HT2341
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Apr 26, 2012 2:21 PM in response to tishfromvaby X423424X,I think you started another thread by mistake instead of continuing this one. I replied over there and I'll repeat it here...
tishfromva wrote:
Thanks, Limnos. But do you know what the "banks" error is, which the 3 beeps refer to? Do I have to take this machine to the repair shop?
The "banks" are your dimms (ram).
Power On Self-Test Beep Definition - Part 2
Reseat the ram in their slots and make sure they are fully seated.
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Apr 26, 2012 2:49 PM in response to X423424Xby Limnos,Thanks X42...
Tishfromva: I believe RAM is supposed to be a user-serviceable part, but am not sure. Of course there are parts that are not officially but are really user-serviceable, but you shouldn't mess with them unless you're committing yourself ot not having Apple work on them again. I don't know much about your particular computer so I can't say what applies in this case.
If they are serviceable and you want to do the re-seating you can get advice here or find online videos (www.mac-sales.com has several). This is definitely getting into the hands-on hardware side of things so it's up to you. About the equivalent to changing a vacuum cleaner bag.
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Apr 26, 2012 7:22 PM in response to tishfromvaby X423424X,Many of the macbook pro's allow for upgrading the ram and as stated above OWC's instructional video page has videos on how to do it for many of them. Since you never posted exactly what MPB model you have (year) I cannot be any more specific than that.