Although it is aggressively pushing on with higher performance hardware and lower prices, and uses the binary compatible MIPS Computer Inc R2000 and R3000 chip set throughout its workstation and server products (CI No 1,225), Silicon Graphics Inc’ OEM business does not appear to be doing as well as the company would like: OEM sales have reportedly declined to around 20% of turnover, due mostly to the problems at its two biggest customers, Prime Computer Inc and Control Data Corp, although the big hope now is the recently signed Nixdorf pact, already the subject of substantial sales of Personal Iris workstaions according to a company spokesman.