you'll likely struggle to find specs at that sort of level publicly available Intel was far more open at that time (up through the Pentium IV era); here's the

you'll likely struggle to find specs at that sort of level publicly available Intel was far more open at that time (up through the Pentium IV era); here's the datasheet for the PIII: https://download.intel.com/design/PentiumIII/datashts/24526408.pdf https://download.intel.com/design/PentiumIII/datashts/245264... ...and yes, it does expose all 36 address bits on the FSB. The FSB protocol is actually the same as the one first used by the P6.