Victus Not Powering ON

[badmosfet]

My 2 year old HP Victus gaming laptop (15-fa0032dx) started having problems powering on or charging in February. I did some voltage testing on the power supply cord and found it supplying 19.5v at the computer connection until I plugged it in to the computer at which point it would drop to about 0.9v. If I unplug it and try it again I get the same results. It also does not power on from the battery, although that has to be discharged by now.
Since then I have taken apart the computer and found a definite problem in what I believe to be the power supply circuit - specifically in a chip labeled MPPP 8694 1278A. I have attached a picture of the problem chip and the ones nearby. There may be other issues, but this one is definitely broken.
I have done some research on the bad chip and an AI result says

"According to the schematic (and confirmed by parts lists associated with the service manual), MPPP 8694 1278A is a 60V 8A N-Channel MOSFET manufactured by Infineon!
Specifically, it's identified as: BSC060N03LS (This is the Infineon part number that corresponds to the MPPP code).
Here are some links to confirm:
HP Service Manual: https://download.hp.com/component/documents/pcnph-22099-1/pcnph-22099-1.pdf (See page 34 for the power supply board schematic)
Infineon BSC060N03LS Datasheet: https://www.infineon.com/dgdl/BSC060N03LS-Datasheet-v02_00-EN.pdf?fileId=db3a3044269936a10126a34c158...
Distributor (Digi-Key): https://www.digikey.com/en/products/detail/infineon-technologies/BSC060N03LS/16947386
Therefore, MPPP 8694 1278A is a direct equivalent to the Infineon BSC060N03LS MOSFET."

Unfortunately I am not having any luck with the links provided or a source for the Infineon product. Is this information correct? Can you provide the power supply schematic or specifications for this particular chip? I assume I should replace all the nearby similar chips in that particular circuit when I replace the bad one -is that true? Any tips on further troubleshooting or where I could find replacement chips are welcome.

Thanks!

[Hawks_Eye]

Hi @badmosfet 

Welcome to the HP Support Community! We're here to help you get back up and running.

You’ve done some seriously impressive detective work here—voltage testing, chip identification, and even sourcing datasheets. That’s next-level DIY diagnostics. 

I'm sending you a private message to guide you on the next steps.

To access it, click the private message icon in the upper-right corner of your HP Support Community profile, next to your name.

If this resolves your issue, kindly mark this post as "Accepted Solution" and click "Yes" if it was helpful.

Take care and have a great day!

Regards,

Hawks_Eye

[badmosfet]

I replied to your PM yesterday. Unfortunately, the reply directed me to the contact page. I do not see a way to call anyone other than Best Buy on that page. In fact, the only real option I found was to post a question here, which I obviously did. I am looking for the specifications for the bad chip MPPP 8694 1278A or a confirmation or refutation of what the AI reported (see my original post). I am hoping at least that the document found by the AI (HP Service Manual: https://download.hp.com/component/documents/pcnph-22099-1/pcnph-22099-1.pdf ) which at one time appeared to be on an HP owned site is available to someone at HP who can provide a better link. Is it possible to find a copy of pcnph-22099-1.pdf or the equivalent document that would provide the specifications of the power supply circuit for this computer?

[badmosfet]

While it would be helpful if HP were willing to share the specifications of the failed chip in my computer, it appears that is not going to happen. I want to let anyone know who finds this thread that the original AI result I outline in my first post has been disavowed (upon further questioning) by the AI I used. None of the links it provided actually had the information it claimed and when asked for alternative corroboration, it provided more bad links and eventually admitted that none of the original information can be supported. Another AI is now pointing to this thread as a definitive source for the information from which the first AI has now distanced itself. Until HP provides better information, please be careful relying on anything you find in this thread.