Need help Asus x512d power on black screen

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  • LazNo01
    Member
    • Sep 2023
    • 21
    • Algeria

    #1

    Need help Asus x512d power on black screen

    asus x512d with ryzen 5 cpu, does power on but not image .

    when the battery is unplugged and only dc is conected the CPU gets hot and the fan start spinning at max speed ( it's like the laptop turn on automaticly after the dc in pluged )

    i did try with a new ddr4 ram but did help ( also the laptop has intgrated rams ) .

    i need help where to start the diagnonsis what can cause such issue !

    thank you.
  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Bein with measuring voltage on all coils. Link boardview,if available.

    Comment

    • Duranitron
      Badcaps Veteran
      • Jul 2014
      • 543
      • Philippines

      #3
      Start a new tread in Schematic only request to request for an schematic or board view of Asus x512dK
      and I will give you the board view of X512DK 60NB0LZ0-MB1610 Rev 2.1. if this is your model.
      Board view is much better than Schematics
      Last edited by Duranitron; 11-27-2024, 06:54 AM.
      Never stop LEARNING because life never stops TEACHING!

      Comment

      • LazNo01
        Member
        • Sep 2023
        • 21
        • Algeria

        #4
        Originally posted by mcplslg123
        Bein with measuring voltage on all coils. Link boardview,if available.
        here are two images inculding all the voltages i have , with power on and off .. i think everything looks normal on the power side ..
        Attached Files

        Comment

        • LazNo01
          Member
          • Sep 2023
          • 21
          • Algeria

          #5
          Originally posted by Duranitron
          Start a new tread in Schematic only request to request for an schematic or board view of Asus x512dK
          and I will give you the board view of X512DK 60NB0LZ0-MB1610 Rev 2.1. if this is your model.
          Board view is much better than Schematics
          i do have the boardview but i don't know the exact steps to follow for diagnosis :p

          Comment

          • Duranitron
            Badcaps Veteran
            • Jul 2014
            • 543
            • Philippines

            #6
            here is the board view just download it. I also include boardview viewer for it.. happy hunting!!

            https://www.badcaps.net/filedata/fetch?id=3516744
            Last edited by Duranitron; 11-27-2024, 08:16 PM.
            Never stop LEARNING because life never stops TEACHING!

            Comment

            • Duranitron
              Badcaps Veteran
              • Jul 2014
              • 543
              • Philippines

              #7
              Originally posted by LazNo01

              here are two images inculding all the voltages i have , with power on and off .. i think everything looks normal on the power side ..
              measure all the coils in reference to ground. 1 prod connected to ground and 1 prod connected to measure coil. all coils must be have a resistance not less than 1ohm. coil connected to processor is low 1ohm but not shorted.
              Last edited by Duranitron; 11-27-2024, 08:25 PM.
              Never stop LEARNING because life never stops TEACHING!

              Comment

              • Duranitron
                Badcaps Veteran
                • Jul 2014
                • 543
                • Philippines

                #8
                if the problem is no display try to measure the 19volts that is connected to the LVDS
                Never stop LEARNING because life never stops TEACHING!

                Comment

                • mcplslg123
                  Badcaps Legend
                  • Jun 2015
                  • 7262
                  • india

                  #9
                  Connect a usb keyboard and check whether numlock key glows on toggle? We want to be sure whether mb is posting or not.

                  All the voltage rails seems present. Have you tried flashing bios?

                  Else,start measuring all the powergood signals with the help of boardview.
                  Dramrst# is present or not on ram slot?
                  What is the consumption on dc supply
                  01.With ram stick
                  02Without ram stick?

                  Comment

                  • LazNo01
                    Member
                    • Sep 2023
                    • 21
                    • Algeria

                    #10
                    Originally posted by mcplslg123
                    Connect a usb keyboard and check whether numlock key glows on toggle? We want to be sure whether mb is posting or not.

                    All the voltage rails seems present. Have you tried flashing bios?

                    Else,start measuring all the powergood signals with the help of boardview.
                    Dramrst# is present or not on ram slot?
                    What is the consumption on dc supply
                    01.With ram stick
                    02Without ram stick?
                    nothing happend when i plugged the usb Keyboard.
                    and for pwrgood signals they are all messured when the laptop is on , when i turn off the laptop all of them showed 0v except 5vsus_pwrgd was the same as turn on.

                    5VSUS_PWRGD = 3.2V
                    ALL_SYSTEM_PWRGD = 3v
                    APU_PWRGD = 1.8v
                    CORE_PWRGD = 3.1v
                    DDR_PWRGD = 3.34v
                    P_1.2V_PWRGD_10 = 3.34v
                    VS_PWRGD = 3.37v
                    VSUS_PWRGD = 3.3v

                    Dramrst# is 0V ( test it without the ram cause there is no room to test it while the ram is plugged )

                    i can't know to laptop consumption , i don't have a bench power supply.

                    [ edit : i did flash the bios with a donor one ]

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 13830
                      • Canada

                      #11
                      Dramrst# is 0V
                      This means you are stuck in reset mode. This line should be a logic '1' if in normal boot. The # suffix = active_low signal. If this line is low (ie. 0v) then the signal is active, parked in RESET mode.

                      Comment

                      • LazNo01
                        Member
                        • Sep 2023
                        • 21
                        • Algeria

                        #12
                        Originally posted by mon2

                        The # suffix = active_low signal.
                        and that is a new thing i learnd here , thank you .

                        and what can be the issue for laptop to be stuck at RESET mode ?

                        Comment

                        • piernov
                          Super Moderator
                          • Jan 2016
                          • 4435
                          • France

                          #13
                          RAM reset signal is irrelevant if there is no RAM plugged in, or it needs to have enabled on-board RAM.
                          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                          Comment

                          • LazNo01
                            Member
                            • Sep 2023
                            • 21
                            • Algeria

                            #14
                            Originally posted by piernov
                            RAM reset signal is irrelevant if there is no RAM plugged in, or it needs to have enabled on-board RAM.
                            The on board ram is by default enabled, unless the issue here comes from the onboard ram.. and that's what I'm suspecting..
                            The laptop behavior didn't change with or without the ram.
                            ​​

                            Comment

                            • mcplslg123
                              Badcaps Legend
                              • Jun 2015
                              • 7262
                              • india

                              #15
                              DRAMRST# must be at 1.2V as onboard ram is present. Check communication on SDA/SCL pins if you have DSO.

                              Comment

                              • LazNo01
                                Member
                                • Sep 2023
                                • 21
                                • Algeria

                                #16
                                Originally posted by mcplslg123
                                DRAMRST# must be at 1.2V as onboard ram is present. Check communication on SDA/SCL pins if you have DSO.
                                according to the boardview there is MB_DQS_P0 and MB_DQS_N0 on the ram slot.

                                when turned on , MB_DQS_P0 = 0.68v , MB_DQS_N0 = 0V .

                                Comment

                                • Duranitron
                                  Badcaps Veteran
                                  • Jul 2014
                                  • 543
                                  • Philippines

                                  #17
                                  Have you saved the original bios of your unit? Supply the original bios of your model and post it here include the model # the serial number# or service tag serial number, many of the generous and kind hearted people here will to the rest... 😊😊😊 Try to flash the bios with clean ME
                                  Last edited by Duranitron; 11-29-2024, 08:11 PM.
                                  Never stop LEARNING because life never stops TEACHING!

                                  Comment

                                  • LazNo01
                                    Member
                                    • Sep 2023
                                    • 21
                                    • Algeria

                                    #18
                                    Originally posted by Duranitron
                                    Have you saved the original bios of your unit? Supply the original bios of your model and post it here include the model # the serial number# or service tag serial number, many of the generous and kind hearted people here will to the rest... 😊😊😊 Try to flash the bios with clean ME
                                    I did flash it with a fresh bios, I think it's either the CPU or On-board ram.
                                    I have to find a way to disable the On-board ram, do know how to for that model?

                                    Comment

                                    • Duranitron
                                      Badcaps Veteran
                                      • Jul 2014
                                      • 543
                                      • Philippines

                                      #19
                                      Many Moderators here can determine either your bios is at fault. Just post the bios here to make sure that the bios is not faulty. all your voltage rail is normal. They can clear the ME region of your bios. Try that first before you jump in to the advance stage
                                      Last edited by Duranitron; 11-30-2024, 10:30 AM.
                                      Never stop LEARNING because life never stops TEACHING!

                                      Comment

                                      • LazNo01
                                        Member
                                        • Sep 2023
                                        • 21
                                        • Algeria

                                        #20
                                        Originally posted by Duranitron
                                        Many Moderators here can determine either your bios is at fault. Just post the bios here to make sure that the bios is not faulty. all your voltage rail is normal. They can clear the ME region of your bios. Try that first before you jump in to the advance stage
                                        It's an AMD cpu , doesn't have ME firmware .

                                        Comment

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