Part
018-0586-101
is compatible in the following Models:
SGI Origin/Onyx Server
SGI R-2800-128-300 Server - Q4H90A
SGI R-2800-128-400 Server - Q4H91A
SGI R-2800-64-300 Server - Q4H92A
SGI R-2800-64-500 Server - Q4H93A
SGI Server Processors and Upgrades
SGI HU-IC-33TO128 Upgrade Kit - Q3Z42A