Clevo N150SD powers on for 10 secs

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  • Johndill
    Badcaps Veteran
    • Aug 2015
    • 314
    • Australia
    #1

    Clevo N150SD powers on for 10 secs

    Hi, I have a Clevo N150SD, its power (white LED) light comes on for about 10 seconds then goes back to standby (orange LED) light.

    CPU Vcore is 1.69V, PL1 & PL2 coils.

    PL9, PL10 & PL7 have no voltage.

    I have found 3.3V & 5V voltages on the board so I assume those rails are working.

    CPU heats up, GPU stays cold.

    What should I check next? Thanks

    Schematics attached, their half way through the PDF
    Attached Files
    Tags: None
    • Techtiger
      Badcaps Legend
      • Oct 2014
      • 1601
      • france
      #2
      Re: Clevo N150SD powers on for 10 secs

      Did you try with a working Bios ? for PL9 PL10 PL7 test Diode mode Multimeter for Ohms
      PL12 1 PL13 Coil 3&5V test Diode mode Multimeter for Ohms
      PL11 1.35V
      VDDQ VTT 0.75VS ?
      V CORE ?
      U20 pin 8 or 9 3V ?
      U22 pin 8 or 9 5V ?
      RTC VCC ?
      RTC RST ?
      Last edited by Techtiger; 03-05-2019, 01:51 AM.

        Comment

        • Johndill
          Badcaps Veteran
          • Aug 2015
          • 314
          • Australia
          #3
          Re: Clevo N150SD powers on for 10 secs

          Originally posted by techtiger
          Did you try with a working Bios ? for PL9 PL10 PL7 test Diode mode Multimeter Ohms
          I unfortunately do not have a flasher for the bios chip. Is there a way to flash from USB?

          I am unsure how to test with diode mode as I am still learning the trade. :-)

          Ohms to ground:
          PL7 - 46 Ohms
          PL9 - 10.3 Ohms
          PL10 - 10.3 Ohms
          -------------------------------------
          PL12 - 5.22V
          PL13 - 3.29V
          -------------------------------------
          PL11 - 1.35V
          -------------------------------------
          VDDQ VTT? PU3 pin 24 - 0.67V
          -------------------------------------
          VCORE? PL1 & PL2 - 1.69V
          -------------------------------------
          U20 pin 8 & 9 - 3V
          U22 pin 8 & 9 - 5V
          ------------------------------------------------------------------------------------------------------
          RTC VCC? D8 pin 3 - quickly jumping up & down from roughly 1.18V to 60mV & up again
          ------------------------------------------------------------------------------------------------------
          RTC RST? I'm not sure where to test this one sorry
          Last edited by Johndill; 03-05-2019, 02:27 AM.

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france
              #4
              Re: Clevo N150SD powers on for 10 secs

              Originally posted by Johndill
              I unfortunately do not have a flasher for the bios chip. Is there a way to flash from USB?

              I am unsure how to test with diode mode as I am still learning the trade. :-)

              Ohms to ground:
              PL7 - 46 Ohms
              PL9 - 10.3 Ohms
              PL10 - 10.3 Ohms
              ----------------------------
              PL12 - 5.22V
              PL13 - 3.29V
              ----------------------------
              PL11 - 1.35V
              ----------------------------


              U20 pin 8 & 9 - 3V
              U22 pin 8 & 9 - 5V
              ----------------------------
              the voltages & the ohms Readings seems to be fine
              PL12 & 13 Ohms Reading?
              VDDQ VTT 0.75VS ?
              V CORE ?
              RTC VCC ?
              RTC RST ?

              you must buy a Bios Flashing tool with the Cilp so no need to remove the Bios chip every time from Ebay ect less than 15AUD
              yes i have seen Bios flashing VIA USB with a another Lap and a Secial tool Raspberry Pi
              Last edited by Techtiger; 03-05-2019, 02:50 AM.

                Comment

                • Johndill
                  Badcaps Veteran
                  • Aug 2015
                  • 314
                  • Australia
                  #5
                  Re: Clevo N150SD powers on for 10 secs

                  Originally posted by techtiger
                  the voltages & the ohms Readings seems to be fine
                  PL12 & 13 Ohms Reading?
                  VDDQ VTT 0.75VS ?
                  V CORE ?
                  RTC VCC ?
                  RTC RST ?

                  you must buy a Bios Flashing tool with the Cilp so no need to remove the Bios chip every time from Ebay ect less than 15AUD
                  yes i have seen Bios flashing VIA USB with a another Lap and a Secial tool
                  PL12 - 32kohm
                  PL13 - 2.3kohm

                  Others edited in previous post.

                  This one?
                  https://www.ebay.com.au/itm/AU-EEPRO...4AAOSwuFZcd0zB

                    Comment

                    • Techtiger
                      Badcaps Legend
                      • Oct 2014
                      • 1601
                      • france
                      #6
                      Re: Clevo N150SD powers on for 10 secs

                      Secial tool Raspberry Pi
                      EPZ2010 PZ2013 CH341A
                      Last edited by Techtiger; 03-05-2019, 02:55 AM.

                        Comment

                        • Johndill
                          Badcaps Veteran
                          • Aug 2015
                          • 314
                          • Australia
                          #7
                          Re: Clevo N150SD powers on for 10 secs

                          Originally posted by techtiger
                          Secial tool Raspberry Pi
                          EPZ2010 PZ2013 CH341A
                          Thanks, I found a CH341A with a clip on ebay in my previous post so I'll get that one. 🙂

                            Comment

                            • SMDFlea
                              Super Moderator
                              • Jan 2018
                              • 20571
                              • UK
                              #8
                              Re: Clevo N150SD powers on for 10 secs

                              Originally posted by Johndill
                              Thanks, I found a CH341A with a clip on ebay in my previous post so I'll get that one. 🙂
                              Those clips don`t work very well with the CH341A. Best to desolder the bios if you can, or get a better programmer if you intend to repair more laptops in future. A good choice is the RT809F ,TL866II, RT809H .
                              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                Comment

                                • Johndill
                                  Badcaps Veteran
                                  • Aug 2015
                                  • 314
                                  • Australia
                                  #9
                                  Re: Clevo N150SD powers on for 10 secs

                                  Originally posted by SMDFlea
                                  Those clips don`t work very well with the CH341A. Best to desolder the bios if you can, or get a better programmer if you intend to repair more laptops in future. A good choice is the RT809F ,TL866II, RT809H .
                                  I've ordered a CH341A with the clip, if I have issues I can desolder the bios no worries, I don't usually come across bios issues very often
                                  Last edited by Johndill; 03-05-2019, 06:49 AM.

                                    Comment

                                    • piernov
                                      Super Moderator
                                      • Jan 2016
                                      • 4435
                                      • France
                                      #10
                                      Re: Clevo N150SD powers on for 10 secs

                                      Even the "better" programmers won't work well with SOIC clips… I stopped trying and I desolder the chip everytime. (even providing external power doesn't help in some cases)

                                      If you have VCore and PLTRST# then next is indeed trying to flash the BIOS.
                                      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                                        Comment

                                        • Techtiger
                                          Badcaps Legend
                                          • Oct 2014
                                          • 1601
                                          • france
                                          #11
                                          Re: Clevo N150SD powers on for 10 secs

                                          Originally posted by piernov
                                          Even the "better" programmers won't work well with SOIC clips… I stopped trying and I desolder the chip everytime. (even providing external power doesn't help in some cases)

                                          If you have VCore and PLTRST# then next is indeed trying to flash the BIOS.
                                          i agree Piernov some Mobs you must desolder the chip

                                          "RTC VCC? D8 pin 3 - quickly jumping up & down from roughly 1.18V to 60mV & up again" it should be 3.3V
                                          voltage in D8 pin 1 2 3 shold be 3.3V piernov?
                                          Attached Files
                                          Last edited by Techtiger; 03-05-2019, 10:55 AM.

                                            Comment

                                            • SMDFlea
                                              Super Moderator
                                              • Jan 2018
                                              • 20571
                                              • UK
                                              #12
                                              Re: Clevo N150SD powers on for 10 secs

                                              Originally posted by piernov
                                              Even the "better" programmers won't work well with SOIC clips… I stopped trying and I desolder the chip everytime. (even providing external power doesn't help in some cases)

                                              If you have VCore and PLTRST# then next is indeed trying to flash the BIOS.
                                              I agree too, even with genuine pomono clips and external power it doesn`t always work.I own 2 of the green pcb version CH341A`s .
                                              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                                Comment

                                                • Johndill
                                                  Badcaps Veteran
                                                  • Aug 2015
                                                  • 314
                                                  • Australia
                                                  #13
                                                  Re: Clevo N150SD powers on for 10 secs

                                                  Originally posted by techtiger
                                                  i agree Piernov some Mobs you must desolder the chip

                                                  "RTC VCC? D8 pin 3 - quickly jumping up & down from roughly 1.18V to 60mV & up again" it should be 3.3V
                                                  voltage in D8 pin 1 2 3 shold be 3.3V piernov?
                                                  You are correct, my mistake, D8 was on the other side of the board & all pins are 3.3V.
                                                  Last edited by Johndill; 03-05-2019, 04:22 PM.

                                                    Comment

                                                    • Johndill
                                                      Badcaps Veteran
                                                      • Aug 2015
                                                      • 314
                                                      • Australia
                                                      #14
                                                      Re: Clevo N150SD powers on for 10 secs

                                                      My CH341A has finally arrived, where can I find a working bios to flash to the board?
                                                      Attached Files

                                                        Comment

                                                        • SMDFlea
                                                          Super Moderator
                                                          • Jan 2018
                                                          • 20571
                                                          • UK
                                                          #15
                                                          Re: Clevo N150SD powers on for 10 secs

                                                          https://repo.palkeo.com/clevo-mirror/N1xxSD/

                                                          Second and fourth link up from the bottom of page, ec and bios .


                                                          EDIT: https://winraid.level1techs.com/t/gu...rammer/32948/3
                                                          Last edited by SMDFlea; 05-07-2023, 08:52 AM. Reason: edited winraid link
                                                          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                                            Comment

                                                            • Johndill
                                                              Badcaps Veteran
                                                              • Aug 2015
                                                              • 314
                                                              • Australia
                                                              #16
                                                              Re: Clevo N150SD powers on for 10 secs

                                                              Originally posted by SMDFlea
                                                              https://repo.palkeo.com/clevo-mirror/N1xxSD/

                                                              Second and fourth link up from the bottom of page, ec and bios .


                                                              EDIT: https://winraid.level1techs.com/t/gu...rammer/32948/3
                                                              Bios is backed up, erased and flashed.

                                                              What is the EC and what do I do with it?
                                                              Last edited by SMDFlea; 05-07-2023, 08:53 AM.

                                                                Comment

                                                                • SMDFlea
                                                                  Super Moderator
                                                                  • Jan 2018
                                                                  • 20571
                                                                  • UK
                                                                  #17
                                                                  Re: Clevo N150SD powers on for 10 secs

                                                                  Originally posted by Johndill
                                                                  Bios is backed up, erased and flashed.

                                                                  What is the EC and what do I do with it?
                                                                  The EC controls the fan speed.You can make a USB bootable DOS drive,and include the files from the EC folder ,boot from it and run flash.bat ,the instructions are included. https://rufus.ie/

                                                                  Is the board booting up now since the bios flash ?
                                                                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                                                    Comment

                                                                    • Johndill
                                                                      Badcaps Veteran
                                                                      • Aug 2015
                                                                      • 314
                                                                      • Australia
                                                                      #18
                                                                      Re: Clevo N150SD powers on for 10 secs

                                                                      Originally posted by SMDFlea
                                                                      The EC controls the fan speed.You can make a USB bootable DOS drive,and include the files from the EC folder ,boot from it and run flash.bat ,the instructions are included. https://rufus.ie/

                                                                      Is the board booting up now since the bios flash ?
                                                                      Ah ok, just tried now as I was waiting for your reply, unfortunately there is no difference than before, GPU fan spins a little and stops then after a few seconds power light goes back to standby
                                                                      Last edited by Johndill; 03-19-2019, 06:02 AM.

                                                                        Comment

                                                                        • SMDFlea
                                                                          Super Moderator
                                                                          • Jan 2018
                                                                          • 20571
                                                                          • UK
                                                                          #19
                                                                          Re: Clevo N150SD powers on for 10 secs

                                                                          Can you post both your bios backups ,U17 and U18 .
                                                                          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                                                            Comment

                                                                            • Johndill
                                                                              Badcaps Veteran
                                                                              • Aug 2015
                                                                              • 314
                                                                              • Australia
                                                                              #20
                                                                              Re: Clevo N150SD powers on for 10 secs

                                                                              Originally posted by SMDFlea
                                                                              Can you post both your bios backups ,U17 and U18 .
                                                                              Ah, I only worked with U17 BIOS ROM, Attached, bios1

                                                                              What is ME ROM U18? Just dumped & attached, bios2U18
                                                                              Attached Files
                                                                              Last edited by Johndill; 03-19-2019, 06:52 AM.

                                                                                Comment

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