Source : Free On-Line Dictionary of Computing

EV6
     
         (Alpha EV6) {Compaq}'s {bus protocol} for
        {Slot A} {motherboards}.  The Alpha EV6 bus protocol is
        capable of bus speeds from 40 to 400 MHz and uses a
        {point-to-point} {topology} with {clock forwarding}.
     
        (1999-08-05)