MacBook Air A2179 clicking sound from CPU area repair: Difference between revisions
From Repair Wiki
(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...") |
No edit summary |
||
| Line 1: | Line 1: | ||
{{Repair Guide | {{Repair Guide | ||
|Device= | |Device=MacBook Air A2179 | ||
|Affects parts= | |Affects parts=Motherboard, CPU | ||
|Needs equipment= | |Needs equipment=multimeter, soldering iron, soldering station, BGA rework station | ||
|Type= | |Type=Soldering, Micro-Soldering | ||
|Difficulty= | |Difficulty=4. Specialist | ||
}} | }} | ||
{{stub}} | |||
==Problem description== | ==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. | 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. | ||
Revision as of 18:32, 28 September 2023
| MacBook Air A2179 clicking sound from CPU area repair | |
|---|---|
| Device | MacBook Air A2179 |
| Affects part(s) | Motherboard, CPU |
| Needs equipment | multimeter, soldering iron, soldering station, BGA rework station |
| Difficulty | ◉◉◉◉ Specialist |
| Type | Soldering, Micro-Soldering"Micro-Soldering" is not in the list (Soldering, Teardown, Part replacement, Cleaning, Software, BGA, General) of allowed values for the "Repair Guide type" property. |
This article is a stub. You can help Repair Wiki grow by expanding it
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.
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.