Re: DAG3DCMBCC0 REV C cpu shorted?
so
i replaced the mosfet that was shorted and now diode mode measurement is normal but the same problem exists
what can measure at this point
is the cpu fried for the main problem
when i turn on theres no voltage in the coils of cpu
mauareju
Member
Last Activity: 10-13-2024, 12:00 AM
Joined: 10-08-2019
Location: mexico city
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Re: DAG3DCMBCC0 REV C cpu shorted?
Well I removed the mosfet in black color and now cpu have normal values now
In ohm mode shows 1 ohm but still the same problem
Is the cpu fried?Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
yes this measurement was in diode mode an resistance an resistance shows 0.002 ohm i think is full short...Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
ok guys so...
i decided to turn up these coils that gives power to cpu and now the cpu measurement is 2.3 ohm so thats normal
in the image that i attached see in black one coil tha gives full ground and in the blue these coils give 511 each in diode mode so i think that the mosfet or something in that line is causing the short
ill inject some voltage and i will keep you update...Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
yes the pch is on another chip is not in the cpu...Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
yes 1.05v is mising
is this voltage always?
where i can find the source of this voltage? there is no scheme of this board
There is more photos of the board...Last edited by mauareju; 07-03-2021, 10:45 AM.Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
yes i measured an i5-8300h wich was functional and in the same line in that laptop has an 2.9 ohm value
the strange thing here is that i inject 1v and 1.6a to this i7-9750h and doesnt get hot, any component, should inject more cutrrent or volt?...Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
is on cpu side?
all hopes are lost?...Leave a comment:
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Re: DAG3DCMBCC0 REV C cpu shorted?
hi
relative to ground is 0.2 ohm...Leave a comment:
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DAG3DCMBCC0 REV C cpu shorted?
hi everyone
as the title says i got this board with a possible short in cpu
when i connect the power supply the laptop draws 0.015 amps and when press the power button the light in the same button turns on and quickly turn off at the same time that power input ligth do the same
its a hp omen dc1003la with a i7 9750h and a 1660 ti
when push the button the laptop max amp draw is 0.120 amps and turn off
measurement near the cpu show me a full short ill attach the image
how can confirm that cpu is shorted
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Re: does anyone know how to disable graphicard on acer
what happened to your pc?Leave a comment:
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Re: no hdmi image hp zso50-a944p
yes voltage mode in dc get in ddcdata when its not conected the hdmi port is 3.81v,when is conected 3.51V diode mode gets 515
ddcclk gets 4.15v when its not conected, 3.60v when it is conected diode mode gets 515 to
this values are in hdmi port output in cpu lines get 1.8v both lines...Leave a comment:
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Re: x555uj rev 2.0 disable onboard ram
[url]https://www.youtube.com/watch?v=YU8GylW-gQI[/url]
i hope you could understand the videoRe: x555uj rev 2.0 disable onboard r...tand the videoRe: x555uj rev 2.0 disable onboard ram
[url]https://www.youtube.com/watch?v=YU8GylW-gQI[/url]
i hope you could understand the videoLeave a comment:
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Re: no hdmi image hp zso50-a944p
yes voltage mode in dc get in ddcdata when its not conected the hdmi port is 3.81v,when is conected 3.51V diode mode gets 515
ddcclk gets 4.15v when its not conected, 3.60v when it is conected diode mode gets 515 to
this values are in hdmi port output in cpu lines get 1.8v both linesLeave a comment:
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Re: no hdmi image hp zso50-a944p
Thanks for your response
I already tried with live usb but no luck
When connect the hdmi I have 2 different voltages for ddcclk and ddcdata is that normal?
In other good working laptop hdmiport I measured and ddcclk & ddcdata have similar voltajes but in the defective laptop theres like .5 volts of difference betwen ddcdata and ddcclk...Last edited by mauareju; 05-23-2020, 09:18 AM.Leave a comment:
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no hdmi image hp zso50-a944p
hello everyone
i have a hp whit mobo zso50-a944p that dont detect hdmi when conect to a tv
i measured all values in the schematic in hdmi cpu line output wich says that need 1v in hdmi data lines and 1.8 in hdmi hpd, ddclk & ddcdata wich i have
attach the squematic
what could it be
thanks in advance
[ATTACH]213004[/ATTACH]... -
Re: New Members - please post your introductions here
hello everyone
im happy for find this forum
i dont know so much about but i hope could learn something from the masters in this placeLeave a comment:
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