Does this “chip/adapter” looks broken to you?

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Is This Power Management Chip Faulty? Seeking Your Advice

I’ve been using my laptop without any issues for about a year, accumulating over 300 battery cycles. However, yesterday, it experienced a sudden black screen during the boot process, specifically when the network service was initializing. This has led me to believe that the problem may not be related to software or BIOS settings.

After taking my laptop to a repair technician, I was informed that it could potentially be a short circuit on the motherboard. To investigate, I gently touched various sections of the motherboard to locate any unusually hot areas. The only component that I found to be heating up significantly was the power management unit. Nestled within this unit is a small chip that appears to be damaged.

Interestingly, the power management unit only exhibits this heating behavior when the charger is plugged in, and the issue persists regardless of whether I’m using the charger or the internal battery as a power source. While I noticed warmth in several components in that vicinity, it’s difficult to determine whether the damaged chip is indeed the sole culprit. The entire area, which I’ve highlighted in red, seems to be warm to the touch.

I appreciate your time and insights—please let me know if you require any further information.

Additional Note:

The orange chip next to the label “PU702” is the component I suspect is malfunctioning.

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One Comment

  1. Thank you for providing detailed information and images regarding the suspected damaged component. Based on your description, the heating of the power management chip, especially when the charger is plugged in, could indicate a potential failure or short circuit within that chip. It’s important to exercise caution, as working directly on motherboard components can be sensitive and may cause further damage if not handled properly.

    Here are some suggestions to proceed:

    • Ensure the laptop is completely powered off and disconnected from any power source before handling or inspecting the motherboard further.
    • Consider using a magnifying glass or a thermal camera to better examine the chip for signs of damage, such as discoloration, cracks, or bulging.
    • If you are comfortable and experienced with electronics repair, you might perform a gentle reflow of the affected area or test the component with a multimeter, if accessible. However, this should only be attempted if you’re confident in your skills.
    • For a safer and more definitive diagnosis, I recommend consulting with a professional laptop repair technician. They can test the power management circuitry more thoroughly and, if necessary, replace the faulty component.
    • Keep in mind that a damaged power management IC can lead to battery issues or power instability, so addressing it promptly is advisable.

      Proceed carefully and avoid using the device until the fault is properly diagnosed and repaired. If you need further assistance or specific troubleshooting steps, please let us

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