In the whatinthehellisthat department: I have a small daughterboard, pulled from an very early Sun SPARC machine (perhaps the first generation Sun-4 architecture). The floating point chip was replaced by this daughterboard. On the daughterboard is the PACT8847 chip (the normal floating point unit), plus a larger chip called 100-1845-1 SUN-GNUFPC. The daughterboard seems to be called GNUFPC COBRA, and seems like real Sun hardware. Ideas? William Donzelli aw288 at osfn.org