how to Set graphic Discrete mode motherboard(no UMA) Dell XPS L502x - DAGM6CMB8D0

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  • sahamipoor
    Member
    • Nov 2016
    • 38
    • india
    #1

    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 need to Use Discrete graphic nvidia EXT_LCD ports to use LCD and Cut the UMA mode.
    and cut resistors UMA mode (Because some lines is short to 0 ohms -I suppose it was due to the connection of the metal to the outputs).
    any friend Can help me...thanks.

    Also :set D24 and D23 for LCD_Vcc And BL_PWM..
    -move R398 to R394...
    -Remove L43 1.8_run
    -add R455 for dGPU_PWROK
    -remove R672
    -Add R219 and R232
    Please guide me further..


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    • sahamipoor
      Member
      • Nov 2016
      • 38
      • india
      #2
      schematic of this motherboard:
      https://www.badcaps.net/filedata/fetch?id=1930033

        Comment

        • sahamipoor
          Member
          • Nov 2016
          • 38
          • india
          #3
          any body?!

            Comment

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