first quad+ socket motherboard?

gameboy3800 · July 30, 2019

tl;dr: i'd like to know what the first (or an early example of) 4+ socket motherboard was for a vintage build i have in mind. see pic below for an ALR example that i'd love to use but cant find. though if there's an older socket option available that'd be preferable. the older it is or the more sockets it has = better/more fun.

you may need to dig deep in the memory banks to help me out with this one: i've been on the hunt for a motherboard or system with a motherboard in it with 4+ cpu sockets for quite some time now. about the oldest one i can find is an alr model with 4 socket8 pentium pros. i would love to build or find a system with a board like this just for the experience of doing so. plus i could probably try to load a semi modern os to it and see how it compares to newer chips.

ALR made a server with 6 pentium pros with the aid of addon cards to hold the processors. using this method and a lot larger chassis i've read that some companies were able to squeeze 6, 8, even 12 pentium pro processors and with the pricetags to match. at that point the system would've been about as large as an old mainframe. while interesting, i have little hope of ever finding anything like that still intact. but an old quad socket pentium or pentium pro board seems more doable. does anyone know models of boards that match what i've been looking for?

motherboard in pic is an ALR Quad Pro and its a freaking BEAST