For sale
The machines are all of a similar spec. Each has a 400Mhz processor, around 2GB of memory and two 9GB SCSI disks. The CD drive is a standard IDE model which can be swapped out for a standard pc unit if necessary. The workstation also works with a standard USB keyboard and mouse. Although you will need an EVC to VGA connector if you want to plug it into a PC monitor.
If booted without a USB keyboard it will automatically enable the console port on the serial port. Which makes configuration easy.
To get the most out of the hardware you really need to run HPUX which has a 64bit kernel and 64bit userland binaries. It also has full support for the FX series graphics cards.
Linux runs well on this box, however, most distributions are limited to a 32 bit kernel and 32 bit userland binaries. Also, the FX series graphics cards are not well supported by Xorg.
If you are wanting to experiment with different operating systems and architectures then this workstation is ideal. Some people still use these systems for testing software before moving onto their more powerful production systems.
Personally, I like the flexibility of being able to compile binaries for the PA-RISC architecture when at home.