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Does your laptop battery charge only when the laptop is turned off? Click here to view the solution

‎06-15-2025 02:47 PM

HP Recommended
Product: Victus by HP 15.6 inch Gaming Laptop 15-fa1000 (9P833AV)
Operating System: Microsoft Windows 11

Problem Diagnosis – HP Victus 15 (DAG3PAMB8D0 REV D)
The failure is in a single-phase buck converter circuit near the inductor labeled PL 1R0. The dual MOSFET (PQ) in a 3×4 mm WSON package is severely burned and shorted, likely due to a VIN-to-VOUT short during battery reconnection. This caused high current flow, overheating, and carbonization of the PCB.

Surrounding components (MLCC capacitors and 0402 resistors) show signs of thermal damage, and the PWM controller (PU) may also be compromised.

The failed converter likely supplies a secondary rail (e.g., +1.05V or +1.8V) to the chipset. The board won't power on until the shorted MOSFET is removed, damaged traces cleaned, and all affected parts are checked and replaced.
Photos of the burned part: 
https://drive.google.com/drive/folders/1q_LODiRg8vsbiFxGhTp3dmL9P7qDRU6L?usp=drive_link

I am searching for board schema, or even a whole new motherboard to replace 
motherboard model: 

DAG3PAMB8D0 REV:D
MODEL G3PA

Who Me Too'd this topic
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
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