
Released in 2003 the 275 was built around the POWER4+ CPU and had 64-bit support: unlike the x86 world which was still limited to 32-bit exclusively at the time. One unusual feature I've noticed in the 'integrated features' list is redundant cooling in the event one fan fails. Extended service ended in 2016/01/31.
Downloads
Manuals
Firmware, Drivers, & Software
Note: it seems that the 3DxWare driver should support the SpaceBall and SpaceMouse, along with offering new support for the SpacePilot and SpaceExplorer on AIX. However if that's not the case the older Xdriver can be used.
Note #2: you must purchase a license from 4Front Technologies to activate OSS/AIX (while it's released as open source the old UNIX versions are not). OSS/AIX is very buggy and probably has issues on newer versions though, the original developer stopped maintaining it as AIX and software continued to mature.
OS Support
AIX
Delicate Bezels
Unfortunately since the mechanism holding the front bezel on is very delicate, and because the machines are so heavy and relegated to harsh environments, you'll see the whole bezels usually missing. If you've managed to find a 275 with an in-tact bezel, consider yourself lucky. Therefore most listings you'll see them looking like this: