MBA mid 2011 13 inch error


hello guys,

need on macbook. used parallel in air install oil model simulation software. , of sudden, there loads of horizontal lines appearing on screen , left macbook unresponsive. horizontal lines grey, black or white , appear in columns in screen. idea means?

after force shutdown, macbook beeps 3 times loudly , pause 5 6 seconds, , beeps 3 times again. continues until battery drained , annoying night. when recharged, keeps beeping same cycle.

please help. important work document in there while installation going on.
 

i think need genius bar appointment find out happening.

, here link telling happen on mac.

https://support.apple.com/en-au/ht202768

article, possible mac ram fails integrity check, , machine reports error.
 


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