Why is my MacBook Pro screen green pixels

My pixels of the screen are green when I wake the computer if it has been asleep for a long period of time, like all night, or for several hours during the day.  If I keep it for a while, he begins to fade, and the screen appears quite normal, with sometimes flickering. It seems almost as if the screen, or the computer, it must warm that he go away.  I'm afraid that my computer is telling me something serious. Like, you need to replace this computer immediately!

I tried to run an AHT on hardware and came with only one thing:

error message: 4MEM/9/40000002: 0 (or O) x83bb6390

My computer specs are:

Model identifier MacBookPro9.1

processor name intel core i7

Processor speed: 2.6 GHz

Number of processors 1

NB. total of 4 carrots

L2 Cache (per core) 256 KB

L3Cache 6 MB

8 GB memory

MBP91.00D3.B0C boot ROM version

Version of the OS X Yosemite: 10.10.5

I will be grateful for any information that can be given on this issue.

Thanks, Lisel

Model identifies

C L3

Memory: 8 GB

Boot ROM ver


It is a memory error. One or two of your sticks of memory is bad. Have you recently replaced memory. That could have an impact as the screen. It seems to be the Bank 0.

Tags: Notebooks

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