HP Probook 450 G4 dead.

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • warsztat
    Senior Member
    • Feb 2017
    • 189
    • Polska

    #1

    HP Probook 450 G4 dead.

    Hello, laptop HP Probook 450 G4, board DA0X83MB6H0, I5, dead.

    Board



    Measure bottom side



    Measurement to the ground.

    Question : dead processor i5 ?
    If plug power converters inductors 1R0 and 3R3 (0,1ohm and 0,3ohm) very hot after reset battery cmos.
    Attached Files
  • piernov
    Super Moderator
    • Jan 2016
    • 4435
    • France

    #2
    Re: HP Probook 450 G4 dead.

    Inject 1V on any of the inductors with 0.1 ohm or 0.3 ohm to ground and check if PCH (small die on CPU package) heats up.
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

    • warsztat
      Senior Member
      • Feb 2017
      • 189
      • Polska

      #3
      Re: HP Probook 450 G4 dead.

      Meansure socket battery cmos - 8kohm, ic degradation. I5-7200U sr342, is there any place where you can buy sr342 at a profitable price?
      it can be replaced with I3 ?
      Last edited by warsztat; 02-02-2020, 06:12 AM.

      Comment

      • warsztat
        Senior Member
        • Feb 2017
        • 189
        • Polska

        #4
        Re: HP Probook 450 G4 dead.

        I made a measurement in the battery socket (sorry y english, i still learning)

        Comment

        • Madhusha
          Member
          • Apr 2012
          • 15
          • Srilanka

          #5
          Re: HP Probook 450 G4 dead.

          did any one have solution for PCH short?

          Comment

          • mcplslg123
            Badcaps Legend
            • Jun 2015
            • 7262
            • india

            #6
            Re: HP Probook 450 G4 dead.

            Replace it baby. No other option.

            Comment

            • reformatt
              Badcaps Legend
              • Feb 2020
              • 1401
              • Australia

              #7
              Re: HP Probook 450 G4 dead.

              Working on a HP 470 G4 with the same board (DA0X83MB6H0). A quick run around the coils showed 100 ohm to deck on +3VPCU. Anything that low is usually cause for alarm but I went through the basics.

              RTC clock was present, PWR_BTN_OUT# goes low ok to PCH from EC (when power button is pressed), other pre-requisites all check out, including supplies to the PCH. No change to SLP_S5#_3R or SLP_S4#_3R, PCH_SLP_SUS# also no change. No activity other than random pulses on the 24Mhz clock for the PCH, but not sure if it comes up after S5.

              Deemed a dead PCH as nothing else left. Unfortunate as the board was in excellent condition and discrete graphics as well.

              Comment

              Related Topics

              Collapse

              • Document Archive
                HP ProBook HP ProBook 450 15.6 inch G10 Notebook PC Notebook 400 Specification for Upgrade or Repair
                by Document Archive
                This specification for the HP ProBook HP ProBook 450 15.6 inch G10 Notebook PC Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the HP ProBook 450 15.6 inch G10 Notebook PC boardview and HP ProBook 450 15.6 inch G10 Notebook PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
                09-07-2024, 07:12 AM
              • Document Archive
                HP ProBook HP ProBook 450 15.6 inch G10 Notebook PC Notebook 400 Specification for Upgrade or Repair
                by Document Archive
                This specification for the HP ProBook HP ProBook 450 15.6 inch G10 Notebook PC Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the HP ProBook 450 15.6 inch G10 Notebook PC boardview and HP ProBook 450 15.6 inch G10 Notebook PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
                09-07-2024, 06:40 AM
              • Document Archive
                HP ProBook ProBook Fortis 14 inch G9 Notebook PC Notebook Specification for Upgrade or Repair
                by Document Archive
                This specification for the HP ProBook ProBook Fortis 14 inch G9 Notebook PC Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the ProBook Fortis 14 inch G9 Notebook PC boardview and ProBook Fortis 14 inch G9 Notebook PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note...
                09-07-2024, 05:50 AM
              • Document Archive
                HP ProBook ProBook Fortis 14 inch G9 Notebook PC Notebook Specification for Upgrade or Repair
                by Document Archive
                This specification for the HP ProBook ProBook Fortis 14 inch G9 Notebook PC Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the ProBook Fortis 14 inch G9 Notebook PC boardview and ProBook Fortis 14 inch G9 Notebook PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note...
                09-07-2024, 05:50 AM
              • Document Archive
                HP ProBook Prenosni računalnik ProBook 445R G6 Notebook 400 Specification for Upgrade or Repair
                by Document Archive
                This specification for the HP ProBook Prenosni računalnik ProBook 445R G6 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Prenosni računalnik ProBook 445R G6 boardview and Prenosni računalnik ProBook 445R G6 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note...
                09-06-2024, 10:51 AM
              • Loading...
              • No more items.
              Working...