Which had the amusing feature that some motherboards let you add a '487 FPU' [0], which was actually a 486DX that took over completely from the SX. [0] https:/

Which had the amusing feature that some motherboards let you add a '487 FPU' [0], which was actually a 486DX that took over completely from the SX. [0] https://en.wikipedia.org/wiki/X87#80487 https://en.wikipedia.org/wiki/X87#80487