Well, [B]first of all[/B], at least I can recognize the PBA manufacturer from the logo and try to find a description of the differences in the HW revision (as I assume) on their website that marked on the PBA.
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It is clear that in the above PBA fragment...

Ultrabook Samsung NP530U3C-A01RU (Lotus13-R Rev: 1.3.)
PCB: N Y BA41-02022A.
BIOS: Phoenix Technologies Ltd. P15AAJ, 23.07.2015. Macronix MX25L6406E 3,3V. 8-SOP (200mil). JEDEC ID 0xC22017h.
Platform: Chief River. (Ivy Bridge + HM76 chipset (formerly Panther Point.))
CPU: Intel i5-3317U (Ivy Bridge) 3rd Generation Intel Core i5 Processors 2x1,7GHz
Chipset: HM76 Express (formerly Panther Point)
SSD: 128GB Samsung MZ7PC128HAFU-000KN
IME FW: v.8.0.10.1464
Windows 10 Pro Builds 19043.1110

About a year agos, the laptop began spontaneously...

Re: New Members - please post your introductions here

I have some experience in repairing electronic devices, but my own ultrabook pissed me off. Hope to find some really helpful hints.