Issues with Two HP Pavilion Laptops Dead on setting down

[QualityGuys]

I have two HP Pavilion 15t-cs0 units that have died on our client and both are out of warranty. During my troubleshooting i have confirmed the following:

-The unit was in use when at random the unit abruptly shut down on the user and resulted in no power and them unable to power the unit back on.

-Swapped power bricks resulted in no power. Power port shows no light indicators at all.

-Swapping internal battery with known good unit results in no power.

-Swapping the Power port with a known good one results in no lights at all, no power.

-Did the same song and dance, verified its not RAM, reseated cables, swapped with known good M.2 

-Did the ol' sniff test to see if I could smell any burnt smells, nothing.

Both of these units died within a year and a half of use. No matter what i have done to bring them has resulted in failures. I am assuming these are motherboard failures at this point but of course HP isnt helpful when it comes to supporting their clients that have paid good money but are out of their warranty window. I cant even start a chat. 

Looking for solutions and I am hoping I can get some here.

[Echo_Lake]

@QualityGuys

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, 
Since you have already tried most of the troubleshooting steps to resolve this issue, I would request you to reach out to our Support and our Support Engineers should be able to check the available service options in order to diagnose the computer physically. HP Support can be reached by clicking on the following link:  www.hp.com/contacthp/​​​​​​​

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.