MacBook air 3 beeps black screen fix applefix hamilton new zealand
You startup your MacBook air and heard 3 beeps? MacBook air 3 beeps black screen fix only at applefix hamilton. You will find many blogs on MacBook air 3 beeps fix we have read few and none of these addressing MacBook air 3 beeps black screen fix correctly. Read some info here . Most of discussion on forum at www.ifixit.com would say clean the board with vacuums cleaner or put new thermal gel layer on processor it never worked for us. If there is a short on the board cleaning or new thermal paste layer will never remove the short.
MacBook air 3 beeps indicate hardware problem most commonly faulty RAM. On MacBook pro A1278 or earlier MacBooks you can replace the ram if it got faulty. But on MacBook air and latest macbook pro ram is part of the logic board and soldered on the board. It is very important to diagnose which part or line is shorted on the line to pin point or address the problem. Unfortunately finding a short of the MacBook logic board and than reading the schematic digram is not something that anyone can do. We also offer MacBook logic board short course which you can join and learn find the MacBook logic board course info here.
On this MacBook air we find the short in one of the RAM. The capacitors on the Ram line were shorted to ground. To confirm this we perform direct voltage to the line and looked through thermal camera which confirmed the ram is shorted. see below picture.
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