Acer E5-411

maurovalero

Senior Member

Join Date: Sep 2018

Posts: 69

Country: colombia
#1

Acer E5-411

02-20-2020, 02:28 PM

Dont turn on, have 3,3v in PWRBTN but dont have 3,3 on bios u21, and in coils PL7 y PL4 are shorted to ground, in pl3 5,1v pl2 3,4v, pl6 1,8, i dont have idea how continue the revision, I suspect the fault may be in pu11 or pu7, any sugg
add bdv and shematic

https://www.badcaps.net/forum/showthread.php?t=85245

Last edited by SMDFlea; 06-11-2020, 02:00 AM.
Tags: None
ktmmotocross

Boardkiller

Join Date: Feb 2014

Posts: 3609

Country: slovakia
#2

02-20-2020, 02:46 PM

Re: Acer E5-411

pl7 is GPU core and pl4 PCH . looks like dead PCH section of processor. try to isolate that short with removing that coils

dead PCH is very common on bga intel processors
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mcplslg123

Badcaps Legend

Join Date: Jun 2015

Posts: 7262

Country: india
#3

02-21-2020, 01:09 AM

Re: Acer E5-411

Measure resistance on PL7 and PL4 in Ohms mode(Not in diode mode). Low resistance is quite normal on those lines but should not be zero.
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Acer E5-411

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