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Onyx2
	Single-rack Onyx2
Manufacturer	Silicon Graphics, Inc.
Release date	1996; 29 years ago
Discontinued	June 27, 2003
Operating system	IRIX 6.4 or 6.5
CPU	MIPS architecture
Graphics	Reality and InfiniteReality
Predecessor	Onyx
Successor	Onyx 3000
Website	sgi.com

Onyx2, codenamed Kego, is a family of visualization systems. It was developed and manufactured by SGI, and introduced in 1996 to succeed the Onyx. Onyx2 architecture is based on Origin 2000 server plus graphics hardware. In 2000, the Onyx2 was succeeded by the Onyx 3000, and it was discontinued on June 27, 2003. These systems run either IRIX 6.4 or 6.5.

Hardware

Model	CPUs	Memory	Graphics pipelines	Chassis	Introduced	Discontinued
Onyx2 Deskside	1 to 4	128 MB to 8 GB	1	Deskside	?	June 27, 2003
Onyx2 Single Rack	2 to 8	128 MB to 16 GB	1 or 2	Single rack	?	June 27, 2003
Onyx2 Multi-Rack	4 to 128	256 MB to 256 GB	1 to 16	Multi Rack	?	June 27, 2003

Onyx2 uses the MIPS R10000 microprocessor clocked at 150, 175, 180, and 195 MHz, later increased to 250 MHz, due to a process shrink from 0.35 to 0.25 micrometers. Later 300 and 400 MHz R12000, and 500 MHz R14000 CPUs were released.

At the time of their introduction, the Onyx2 could be configured with the Reality, InfiniteReality, or InfiniteReality2 graphics subsystems. Later, the InfiniteReality2E was released and then the InfiniteReality3, in April 2000.