Announcement

Collapse
No announcement yet.

Dell E5440 completely dead

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #61
    Re: Dell E5440 completely dead

    I'll try it and then i'll try bios dump, report in a while

    Comment


      #62
      Re: Dell E5440 completely dead

      Spider can you please give me your opinion on this ->https://www.badcaps.net/forum/showth...t=98968&page=2

      After a shortcircuit i have 20Ω short to the GND, same situation probably.
      From post #31 and so on.
      Thank you in advance.

      Comment


        #63
        Re: Dell E5440 completely dead

        Needed bios dump too, now power on but return LED error code "A possible processor failure has occurred."
        Perhaps a voltage is missing from what i solder OR cpu is indeed fried?

        Comment


          #64
          Re: Dell E5440 completely dead

          Try with a known good BIOS first. The check the voltage on all the coils with laptop ON. Post your results for each coil.

          Comment


            #65
            Re: Dell E5440 completely dead

            Just noticed this laptop has a EC chip too. Can you confirm it is U86 to flash it too?

            Comment


              #66
              Re: Dell E5440 completely dead

              U86 is an AND gate. KBC/SIO is U38 (MEC5075), it is programmable but I don't think its an issue. You'd need SVOD programmer for that. Chip also has 2 rows of pin, 1 visible on the side and another under the chip.

              Try a known good BIOS and post your voltage measurements.

              Comment


                #67
                Re: Dell E5440 completely dead

                I'm waiting for bios with confirmed vPro support, posted request in E5440 bios thread.
                After that i'll flash it and try again.

                Comment


                  #68
                  Re: Dell E5440 completely dead

                  Fixed.
                  I replaced U1, i flashed the bios SMDFlea suggested and worked.
                  Never before seen a "A possible processor failure has occurred." LED error blink due to bad bios and/or bios chip.
                  Well i assume i learn as i live.
                  Thank you both!

                  Back to 7510 problem now that hunts me in my sleep.

                  Comment

                  Working...
                  X