mentioned, and the DS20L which was an 833MHz processor system in the 1U size. The DS10L was supported for use with any of the DEC O/S while the DS20L was only supported for Tru64 from DEC and Linux. VMS was not a supported O/S, although it was purported to be possible to get it to boot with some fiddling. Unfortunately, I was never privy to the details of such. http://h18002.www1.hp.com/alphaserver/archive/ds20l/ http://h18000.www1.hp.com/products/quickspecs/10976_na/10976_na.HTML Alpha Processors Inc (API) also produced a 1U system. Based on the DS20L platform, they aimed for the HPC cluster market. Also purported to be possible to boot VMS with some fiddling, but the usual O/S was some form of Linux. http://youtu.be/RfowtlIk9Uc All were fairly noisy for their size. Maybe not noticeable in a computer center, but definitely in a home setting. John H. Reinhardt