Onyx4

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The SGI Onyx4 is a customized Origin 350 with a custom backplane and an ATi-developed graphics system called UltimateVision.

Differences from the Onyx 350

The Onyx4 uses a custom backplane that allows a pair of ATi FireGL graphics cards in lieu of a VPro graphics pipe.

Compatibility Issues

The Onyx4 uses XFree86 and is incompatible with IRISGL code. Any demos that run in IRISGL are not able to run.