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This section provides instructions for:

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Removing the cooling shroud, single-edge contact (SEC) cartridge, and heat sink

Installing the new SEC cartridge and heat sink and replacing the cooling shroud

Reassembling and checking the system

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1.Turn off the system, including any attached peripherals, and disconnect the power cable from the electrical outlet.

2.Remove the right-side system cover and bezel.

See your system Installation and Troubleshooting Guide for specific instructions, if needed.

3.Remove the cooling shroud as follows:

a.Unscrew and remove the two retention pins (see Figure 1-1).

b.Remove the shroud by lifting the end of the shroud closest to the micropro- cessor(s) until the opposite end of the shroud disengages from the cooling fan on the system’s back panel (see Figure 1-1).

1-4 Microprocessor Upgrade Installation Guide