E.g., at the edge of D3417-B motherboards there's a small white text: SPI
( towards the left side, at the top in the following image, ~ above larger Nuvoton NCT6795D-M chip

Does SPI refer to https://en.wikipedia.org/wiki/Serial_Pe ... _Interface ?
I cannot find information about its use with the product, SPI is not mentioned in the Technotes
ftp://ftp.ts.fujitsu.com/pub/Mainboard- ... _V1.6a.pdf
nor in Data sheet
https://sp.ts.fujitsu.com/dmsp/Publicat ... 3417-B.pdf
Thank you for your help