HP 15 ab584tx thermal shutdown due to IC overheating

[hp15ab]

Model: HP pavilion 15 ab584tx
Issue: Thermal shutdown (Boot screen Error Code:90D)

I did the initial cleaning and repasting, but it would still shut down. I managed to narrow down the problem to the IC APW8858 overheating. I had the IC replaced, but within a few hours, the new IC was short. The local technician I gave it to says it may be an inherent CPU/GPU issue and may need a motherboard replacement. I want to make sure that if this board can be resurrected or it is gone beyond repair.

I'd appreciate any help or guidance on this issue. Thank you very much!

[mcplslg123]

Re: HP 15 ab584tx thermal shutdown due to IC overheating

What is the mb code??

[Duranitron]

Re: HP 15 ab584tx thermal shutdown due to IC overheating

no schematics available.. try to post all the power rail.. and alw.. maybe theres a short somewhere that is why IC APW8858 is overheating a power management ic.. hp15 with i7 6th gen pro. with built in graphics and separate nvdia bga graphics ic.. APW8858 powers the i7 processor.. focus there.. maybe a short mosfets .. i7 processor rarely fail but there is always an exemption .