A1278 (emc 2554*) display issues and possible bad RAM or overheating.

TexpertLLC

New member
Blocks of lines appear over displayed image from time to time (twisting the display slightly sometime makes lines go away, Freezes occasionally, auto reboots occasionally, gets black screen 3-beep RAM error on boot from time to time, but passes Apple hardware diagnostic testing (both quick and extended). No signs of heavy wear, abuse, or liquid damage.
 

TexpertLLC

New member
Thank you very much, I see that your answer is spot on. I learned something new today, I love it when that happens. :)
 
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