. Because these are often generic white-label devices, finding an "official" article or driver page can be difficult. Win-Raid Forum BIOS and Technical Details Hardware Profile : This board is common in mini-desktop units featuring the Intel Core i7-5500U processor and Intel HD 5500 : It frequently uses the Winbond 25Q64FVSIG BIOS chip. Firmware Source
If the CMOS reset fails and the BIOS is corrupted, you may need a physical CH341A programmer to "flash" a new BIOS bin file directly onto this chip. gbdw1-verb.d bios