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schematic of this motherboard:
[url]https://www.badcaps.net/filedata/fetch?id=1930033[/url]https://schematic of this motherboar...=1930033[/url]
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how to Set graphic Discrete mode motherboard(no UMA) Dell XPS L502x - DAGM6CMB8D0
hello...
the Dell XPS L502x ( Model P11F ) [ DAGM6CMB8D0 rev.D ..3 of lines output LVDS from PCH has short ohm(0 -70) than LCD displat turn ON but is white !!!
i decide to change LVDS ports to Lcd from EXT_LCD graphic Studio Discrete to No need it LVDS lines of PCH use...
according to ُSchematic ,I changed any resistor and... Config_0 and Config_1 EC...but:
1- EXT_LCD_PWM no voltage to enable pwm
2-EXT_LVDS_VDDEN no High to Enable LCD_vcc
and screen is turn off and fan is high Speed!!
Question:
[I][SIZE=12px][B]I need to Use Discrete graphic nvidia...
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My problem is completely solved..!!!
The problem was that IC BIOS shows correctly with the programmer,
But it was actually a problem.!!!
that pin /CS (1) should not have any ohms with GND IN BOTH SIDE.
In this CASE, pin 1 of the BIOS IC was damaged due to the MOSFET.Also, I installed the MOSFET for IC BIOS' security ,like this and it worked great.
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"gg.png","data-attachmentid":3202634}[/ATTACH][ATTACH=JSON]{"data-align":&q...
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In this motherboard (HP Probook 650 G1 6050A2566301-MB-04):
3.3 /5 v there are ok .. but with so many different bios, the motherboard does not turn on!!! and the RSMRST# pin does not activate!!!
I don't have PM_PWROK and sys_work.
rtc and LID_SW# are good..
this transistor connected to pin 1 25q128 ic and /CS pin... and always is low abow 0.7v!! Should it be like this? This IC is always in writing mode with this voltage
i am confusedLast edited by sahamipoor; 01-22-2024, 11:14 AM.
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In this case, I will use your suggestion again and let you know
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Thank you for your search..
In this case, even if it is a MOSFET, 2n7002 still cannot work like this. Of course, with my experience, because the voltage of 19 volts causes damage.
In the same case, I replaced this part with a transistor and the ec-pch chips became defective!
Because in this case, the gate pin must be connected to 19 without resistance and switch between pins 2 and 3....
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i am sure about The communication path of this piece[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"rrrrrrrr.jpg","data-attachmentid":3202339}[/ATTACH]...
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[ATTACH=JSON]{"alt":"Click image for larger version Name:\tgg.png Views:\t0 Size:\t32.3 KB ID:\t3202328","data-align":"none","data-attachmentid":"3202328","data-size":"full","title":"gg.png"}[/ATTACH]that is lins in board...pin 3 go to EC pin 97 also to pin 1 w25q128...
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I searched a lot about this regard..
This piece cannot be BC817!!! , because 19 volts or VBAT is connected to its (base )OR PIN 1, and if this transistor is placed and the base is connected to 19, in pin 2 or Emitter of it will definitely damage the i/o chip....
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hi..
do you find that smd 6c?
i need to know it number too..let me know plz...
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Re: Asus x550d.no power
only board view. for x750dp rev 2.0
[B][COLOR="Red"]MOD Edit. Link to boardview[/COLOR][/B] - [url]https://www.badcaps.net/forum/showthread.php?t=50338&highlight=x750dp[/url]
[B][COLOR="Red"]Reminder: rules and organization of this section[/COLOR][/B] - [url]https://www.badcaps.net/forum/showthread.php?t=117483[/url]
.Re: Asus x550d.no power
only board view. for x750dp rev 2.0
[B][COLOR="Red"]MOD Edit. Link to boardview[/COLOR][/B] - [url]https://www.badcaps.net/forum/showthread.php?t=50338&highlight=x750dp[/url]Last edited by SMDFlea; 10-05-2023, 12:44 PM.
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Re: Eeprom dump thread!
hello evryone
in need EEPROM file of plasma lg (42PN4500 or 50PN4500
50PN6500/60PN6500) all same as one (in main board)
main board:EAX65071308 (1.2)
need to eeprom (ic 503)is 24c256 or m24512 file
tanks...
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