MacBook Air A2179 clicking sound from CPU area repair

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Revision as of 18:31, 28 September 2023 by ASRepairs (talk | contribs) (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== If you hear clicking sound from CPU area, this most likely means that the CPU is shorted in one way or another. Clicking sound likely originates from L7400, which powers many internal PCH functions. Clicking results from magnetic resonance within the coil, due to high load on the circuit from a shorted PCH/CPU. File:Placeholder image.jpg|thumb|Example image...")
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MacBook Air A2179 clicking sound from CPU area repair
Device
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

If you hear clicking sound from CPU area, this most likely means that the CPU is shorted in one way or another. Clicking sound likely originates from L7400, which powers many internal PCH functions. Clicking results from magnetic resonance within the coil, due to high load on the circuit from a shorted PCH/CPU.

Example image (Figure 1) -- No image yet. Help expand this page by uploading it!

Symptoms

  • MacBook not turning on
  • Clicking sound from CPU area

Solution

The only way is to replace the CPU. This requires a BGA rework station and lots of experience. If you've never done this before then taking it to a professional or replacing the whole motherboard is the only solution.

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