Z170 Pro Gaming

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  • samstown
    Senior Member
    • Mar 2021
    • 122
    • Switzerland
    #1

    Z170 Pro Gaming

    I've had something similar with Z170 Pro Gaming. One morning, it wasn't booting. I replaced battery CR2032 then it boot once, I could access BIOS and that was the last time after I restarted it never boot again. I didn't change anything from BIOS. I've tried with no RAM with another CPU... real headache.

    Now when I press power button, fan spins for 2 secs then stop... again spin 2 secs and stop and it will repeat this sequence forever. Asus support said I should buy a new one.... I've reflash Z170 PRO GAMING BIOS 3805 with my programmer but still same.

    Looking at my Z170 Pro Gaming, I've identifed MX25L512. i've read it using SOIC 8 PIN connected to EEPROM prgrammer and I get a 64K file. I've attached BIOS and TPU. Now I need to figure it out.

    Bios request - https://www.badcaps.net/forum/showthread.php?t=122089
    .
    Attached Files
    Last edited by SMDFlea; 08-08-2023, 03:50 PM. Reason: uploading image
    Tags: None
    • anikin73
      Senior Member
      • Mar 2022
      • 112
      • singapore
      #2
      Re: Z170 Pro Gaming

      Normally if this happens, it means one of the violage is not present.or produced. Hence it will boot loop..one of the possible thing. Not for beginner.

        Comment

        • McWhitePink
          Senior Member
          • Apr 2023
          • 94
          • United States
          #3
          Re: Z170 Pro Gaming

          what is the BIOS chip down there?

          Originally posted by samstown
          I've had something similar with Z170 Pro Gaming. One morning, it wasn't booting. I replaced battery CR2032 then it boot once, I could access BIOS and that was the last time after I restarted it never boot again. I didn't change anything from BIOS. I've tried with no RAM with another CPU... real headache.

          Now when I press power button, fan spins for 2 secs then stop... again spin 2 secs and stop and it will repeat this sequence forever. Asus support said I should buy a new one.... I've reflash Z170 PRO GAMING BIOS 3805 with my programmer but still same.

          Looking at my Z170 Pro Gaming, I've identifed MX25L512. i've read it using SOIC 8 PIN connected to EEPROM prgrammer and I get a 64K file. I've attached BIOS and TPU. Now I need to figure it out.

          Bios request - https://www.badcaps.net/forum/showthread.php?t=122089
          .

            Comment

            • anikin73
              Senior Member
              • Mar 2022
              • 112
              • singapore
              #4
              Re: Z170 Pro Gaming

              That chip is for the controller called tpu xxxxx. It is not the bios for the board

                Comment

                • McKey
                  Senior Member
                  • Jun 2024
                  • 51
                  • Hungary
                  #5
                  Originally posted by McWhitePink
                  Re: Z170 Pro Gaming

                  what is the BIOS chip down there?
                  Winbond 25Q128FVIQ

                    Comment

                    • McKey
                      Senior Member
                      • Jun 2024
                      • 51
                      • Hungary
                      #6
                      So, i bought a joblot with 10pcs Z170 Pro Gaming.
                      Two of them are having the exact same issue:
                      Every rail has its voltages, but VCORE and VCCGT are missing. VCCSA are present.
                      Reaction to power button (both on and off). Consumption is hanging on ~700mA (800-900mA with CPU cooler)
                      I checked:
                      -every low and high side FETs,
                      -every mosfet driver (NCP81166AMNTBG),
                      -the digi VRM (ASP1400BMNTXG)
                      -the TPU (KB3720QF)
                      All seems to be fine (not shorted and same resistances as on the other working mobo)
                      I switched the TPU flash (PM25LD512 manufactured by Chingis) from an other mobo with a damaged socket.

                      With the "new" TPU flash i had the same hanging around 700mA.
                      With the "new" TPU flash and with its own bios chip, the pair gets trough on the mentioned 700mA period, reaches 1,6A for a second or two, than it restarts, like it is RAM training, but after the restart it is hanging again on that 700mA.

                      Lessions:
                      The PM25LD512 are really fragile, recommended to desolder it with a hot air gun, and dont even try to force up one side of the pins and then the other.
                      The TPU flash has to mach its own BIOS version.

                      My next step will be to download all the BIOS versions from Asus, and try each of them with this TPU flash, maybe it is mismatching with even its original bios chip (remember, its from a job lot)

                      Question: How can i extract the TPU bin from the BIOS bin? That way i could try to program each of em separately -to sort out if its just a mismatch originally.
                      If you have any other suggestion, thats welcome.

                      What i saved from the TPU flash:
                      Attached Files

                        Comment

                        • McKey
                          Senior Member
                          • Jun 2024
                          • 51
                          • Hungary
                          #7
                          I just shared both the bios and tpu flash BINs here:
                          https://www.badcaps.net/forum/troubl...nd-tpu-request

                            Comment

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