SGI Onyx2

The Onyx2, code name Kego, is a family of visualization systems developed and manufactured by SGI, introduced in 1996 to succeed the Onyx. The Onyx2's basic system architecture is based on the Origin 2000 servers, but with the inclusion of 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.

Onyx2

Single-rack Onyx2
Manufacturer	Silicon Graphics, Inc.
Release date	1996 (1996)
Discontinued	June 27, 2003 (2003-06-27)
Operating system	IRIX 6.4 or 6.5
CPU	MIPS architecture
Graphics	Reality and InfiniteReality
Predecessor	Onyx
Successor	Onyx 3000
Website	sgi.com

Models

Model	# of CPUs	Memory	# of 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

Microprocessor

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

Graphics subsystem

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

SGI timeline

References

• SGI Onyx2 Reference data at Nekochan.net Archived May 2, 2018, at the Wayback Machine