Intro and 9133D HDD

[rprosperi]

There is a wealth of documentation for the 9133 on the HP Computer Museum, just search for "9133". Among those, the "9133-9134 CE Handbook" (and probably others too) include details of jumpers/dip-switches (section III) on the main board which you use to specify the parameters of the hard drive you install, based on the S/N of your drive. It doesn't really say explicitly that one must set these to adapt a new or different hard drive, as HP probably never anticipated owners would be installing their own drives, but I could not get the 251 drive I installed working properly until adjusting these to reflect the drive I installed.