820-3209-a

[rob777]

got a 820-3209 MacBook Air. Doing the 3 sos beeps.
Ive spent 30mins measuring all the power rails for ram.. all there. Is this a common problem? I'm stuck again sorry hence the post.

 

[Therealkilometers]

Most likely a faulty Ram Chip

 

[dukefawks]

3 beeps repeating or 3 long, 3 short, 3 long like SOS, big difference.

 

[rob777]

is definitely 3 beeps repeating. 3 long beeps then 3-4 sec gap then same again

 

[dukefawks]

Bad RAM or CPU or it was dropped so cracked traces. In my eyes too much work to change the RAM and possibly CPU or damaged PCB, scrap board.

 

[rob777]

Thanks Duke.