I'm not sure if it's surprisingly hard to find a pinout for socket 423 or 478 CPUs or it was surprisingly easy to find it for socket 370. Up until 370 I can find pin layouts. Above that suddenly nothing. Did something change at intel around then? 370 already wasn't used by other manufacturers as far as I know.
Does any #RetroComputing fan know where to find the pinout for (early) #Pentium4?