How can I find this chip equivalent?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • adigrf
    New Member
    • Jun 2025
    • 5
    • romania

    #1

    How can I find this chip equivalent?

    Hello! I saw on my motherboard DAG77MB18C0 rec C that I have a burn chip and I also found a similar one in good shape but I am having troubles recognizing and finding it online in order to replace it.
    What I can read is: DN46AP 22cf 1000 and Gemini is telling me it is a MOSFET by On Semiconductor model NVMFD5c466n
    Do you think this is real ?

    The laptop is still starting but I dont want to use it until I replace that. Based on the images, do you think I will succed with a profesional electronic technician?

    Click image for larger version

Name:	20250622_075338.jpg
Views:	99
Size:	1.41 MB
ID:	3664821
    Attached Files
  • Sephir0th
    Badcaps Legend
    • Oct 2020
    • 1283
    • Germany

    #2
    It is FDMS3664S
    Last edited by Sephir0th; 06-22-2025, 02:53 AM.
    FairRepair on YouTube

    Comment

    • Sephir0th
      Badcaps Legend
      • Oct 2020
      • 1283
      • Germany

      #3
      Picture upload is very buggy right now. Tried again...
      Attached Files
      FairRepair on YouTube

      Comment

      • adigrf
        New Member
        • Jun 2025
        • 5
        • romania

        #4
        Thank you, sir! Based on your experience, do you think I will be able to fix it? I can say that a 20years old electronics technician will help me to replace it.

        Comment

        • Sephir0th
          Badcaps Legend
          • Oct 2020
          • 1283
          • Germany

          #5
          It's a question of skill. I can't tell at what skill level you coukd work. And Nobody cann tell how it looks underneath before you have actually removed the burned Mosfet. In worst case it needs serious and complicated approaches, like drilling to remove shorts and rebuild of the tracks. And even then it is still possible that the GPU is already fried, since you are working on the GPU Core supply here.
          FairRepair on YouTube

          Comment

          Related Topics

          Collapse

          • DynaxSC
            ASRock B650M PRO RS - BIOS CHIP 25Q256JW BLOCKED BY STATUS REGISTERS
            by DynaxSC
            Hi

            I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
            The SPI chip is an Winbond 25Q256JWEQ model (1V8).
            The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
            The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.

            I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6...
            08-04-2025, 12:20 PM
          • danielgerman681
            ENCONTRAR DATOS DMI EN EL CHIP BIOS IDEAPAD5 15ITL05 / FIND DMI DATA ON IDEAPAD5 15ITL05 BIOS CHIP
            by danielgerman681
            Hi, Im trying to find the area on the chip that contains all of my laptops information, but I havent found it. The laptop won't turn on anymore. I was updating the BIOS, and it was supposed to reboot itself, but it wouldnt turn back on. I ve tried every possible solution, every alternative on Lenovo forums, everywhere; I ve taken it to technicians, and no one has been able to fix it. I've already read the chip that contains the BIOS (Winbond 25Q128JSVQ) and searched for my laptops data, but they're nowhere to be found. I only find scribbles and lines of text indicating errors. Has anyone had a...
            Today, 01:17 PM
          • SMDFlea
            Common SPI bios chip programming Questions and Answers
            by SMDFlea
            Common SPI bios chip programming Questions and Answers
            ----------------------------------------------------------

            Q: I have a bios request,i can`t post my backup as i can`t read from the chip.

            A: If you can`t read from it how do you expect to write to it ?.

            Q: Why is my bios chip unreadable ?.

            A: The programmer is faulty or has a worn or broken zif socket.

            The USB cable is frayed,connector pins worn or some other physical damage.

            Not enough amperage or voltage to power the programmer properly.

            Bad...
            09-02-2021, 04:40 PM
          • rumpumpel1
            How do I find a defective RAM chip
            by rumpumpel1
            I have a ThinkPad T14 which always finds an error at a very specific address during a RAM test. I therefore believe that exactly one of the RAM chips on the mainboard is defective. How do I find this defective RAM chip?
            07-29-2025, 11:55 AM
          • acedogblast
            Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
            by acedogblast
            This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

            There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
            11-02-2024, 05:13 PM
          • Loading...
          • No more items.
          Working...