Difference between revisions of "A1286/A1297 Common Issues"

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(Undo revision 6277 by Iywdde (talk))
Tag: Undo
(Undo revision 6276 by Iywdde (talk))
Tag: Undo
 
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820-2330, 820-2390, 820-2532, and 820-2610  
 
820-2330, 820-2390, 820-2532, and 820-2610  
  
*C7771 loses capacitance and lowers the voltage.  This can cause green light but no power or some random instabilities.  It can cause no power with only 0.3V on the MCP standby rail, but could also cause some random instabilities.
+
* C7771 loses capacitance and lowers the voltage.  This can cause green light but no power or some random instabilities.  It can cause no power with only 0.3V on the MCP standby rail, but could also cause some random instabilities.
  
 
820-2523 and 820-2533 are not affected
 
820-2523 and 820-2533 are not affected
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820-2850  
 
820-2850  
  
*C9560 loses capacitance and lowers the voltage.  This can cause intermittent crashing especially when switching graphics processors.  It can also cause no video
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* C9560 loses capacitance and lowers the voltage.  This can cause intermittent crashing especially when switching graphics processors.  It can also cause no video
  
 
820-2849 is not affected.
 
820-2849 is not affected.
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820-2914, 820-2915
 
820-2914, 820-2915
  
*AMD GPU fails due to thermal issues.  Bypassing is the only way to fix.
+
* AMD GPU fails due to thermal issues.  Bypassing is the only way to fix.
  
 
==2012==
 
==2012==
 
820-3330
 
820-3330
 
* Chime but no image or backlight, no external video, in other similar case like this apple logo appears booting system and shutdown or restart at the point when switch from Intel integrated to Nvidia dedicated, resolver U8900 very common issue.
 
  
 
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Latest revision as of 16:22, 1 December 2021

2008-2009

820-2330, 820-2390, 820-2532, and 820-2610

  • C7771 loses capacitance and lowers the voltage. This can cause green light but no power or some random instabilities. It can cause no power with only 0.3V on the MCP standby rail, but could also cause some random instabilities.

820-2523 and 820-2533 are not affected

2010

820-2850

  • C9560 loses capacitance and lowers the voltage. This can cause intermittent crashing especially when switching graphics processors. It can also cause no video

820-2849 is not affected.

2011

820-2914, 820-2915

  • AMD GPU fails due to thermal issues. Bypassing is the only way to fix.

2012

820-3330