5

5.5.2.2 Cooling and Power Issues

There should be one power/cooling module (PCM) for every two boards to adhere to cooling and power requirements. The PCMs must be installed adjacent to populated board slots to ensure the fan in the PCM can cool the respective boards.

Note – All empty board slots in Enterprise 4000 or 5000 systems must have a filler panel installed to ensure proper cooling. All empty slots in Enterprise 6000 systems must have load boards installed.

5.5.2.3Powered or Nonpowered On System

1.Carefully insert the board (component side down if in front; component side up if in the rear) in the proper slot in the card cage, ensuring that the board does not slip out of the left and right card guides.

See Figure 5-7.

5-10

Ultra Enterprise 6000/5000/4000 Systems ManualNovember 1996

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Sun Microsystems 6.0005E+11 manual Cooling and Power Issues