Request to get Laptop motherboard theory

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  • wagolla
    Request for Assistance: HP Laptop with LA-G07FP Motherboard Power and Charging Issue
    by wagolla
    HP laptop with the LA-G07FP motherboard has encountered persistent issues with powering on and charging. Here are the details:
    1. The laptop does not power on or charge consistently.
    2. When I remove and then reinsert the battery, the laptop will turn on when connected to the power adapter, and the battery charges normally.
    3. However, after approximately 1-2 days, the issue reoccurs, and the laptop will not power on or charge until I repeat the battery removal process.
    4. I have already updated the drivers and BIOS via the HP support website, but the problem persists.

    Could you assist with...
    10-28-2024, 12:14 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
  • Nagy Daniel
    Lowest possible resistance on laptop motherboard rail - Guide Table request
    by Nagy Daniel
    Hi, I'm Daniel, and I'm new to the world of repairing motherboards.

    I would like to create a table, or more likely a guideline about the voltage rails and their possible resistance rail.

    I know that the motherboard design has a very big depend on the rail's resistance, but I would like to know what is the smallest value for a rail that can be acceptable. For example, I heard that some new gaming motherboards can have 0,5 Ohm resistance on the GPU rail, but on an older type, it could be a sign of a shorted GPU rail.

    So, I generated a table with AI so I can...
    03-04-2025, 08:24 AM
  • Geeker007
    Friend messed up my laptop motherboard while working on my bench
    by Geeker007
    Hi All,

    So my friend was visiting and he wanted to use my solder bench to solder on some WLED circuit board. My laptop was open on the side for RAM upgrade. I know my mistake.

    So while soldering he had too much solder on the soldering iron tip and he just shook off the soldering iron on the table itself to remove extra solder on the soldering tip and it landed on the motherboard of laptop. He then out of fear tried to remove it using solder wick and did more damage by removing some components as well. So here I am with weird situation.

    I have not tried putting...
    06-16-2025, 01:40 PM
  • Username338
    Laptop BA92-09470B motherboard schematics
    by Username338
    Thank you for deciding to read this topic!

    Laptop: NP700Z3A-S02RU
    Motherboard: BA92-09470B

    I was trying to fix my old laptop that has stopped displaying image a long time ago. It boots up, lights light up, fan spins but no image. Conned it to TV by HDMI cable, but it was unsuccessful. Components look intact, no water damage/corrosion on the board.

    I don't really value this laptop too much, so I wanted to ask anyone for a schematic/boardview file or anything that describes motherboard in a simillar faison. I want to experience a challenge of figuring...
    03-09-2025, 03:52 PM
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