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Dell Inspiron 15-3521 no Vcore voltage

Posted: Sun Nov 06, 2016 11:44 am
by bluestone
Laptop Model: Dell Inspiron 15-3521
MotherBoard Model: Compal La-9104p
Processor type: Intel core i3
Ram type: DDRIII
Laptop power on ok but no display
I have diagnosed every voltage on this board still can't find the problem, I have flashed both EC and PCH bios still no results.
19v is present, 1.8v is present, 1.5v is present, 0.75v is also present, VR_On is 3.3v, but VCcore is 0v, I also noticed that VCcore line on Pc1228 is 0.02ohms to ground.
Can anyone help me on where to troubleshoot next.

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Mon Nov 07, 2016 10:23 am
by javed
check shorting in core section

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Mon Nov 07, 2016 11:59 am
by Arun.shspl
core supply is ok or not after that plz check clock

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Tue Nov 08, 2016 11:11 am
by bluestone
How can I locate the clock generator?

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Tue Nov 08, 2016 2:14 pm
by Arun.shspl
down load pdf

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Sun Nov 13, 2016 1:02 pm
by PINTUSINGH
PLEASE CHEK 5V ENABLE VOLT.

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Mon Nov 14, 2016 7:32 am
by bluestone
I have 5v and 3.3v working perfectly, I suspected its pu700, I replaced it but still no Vccore.

Re: Dell Inspiron 15-3521 no Vcore voltage

Posted: Mon Dec 04, 2017 11:00 pm
by Marouen92
i have the same motherboard la-9104p rev 1
the fact that i have 5 motherboards and they have the same problem, they turn on, no display the cpu not heat....help plz