IBM 388, 387, 393, 391 What to do next, Installing the microprocessor, ThinkServer User Guide

10.Hold the new microprocessor by its edges and align the notches 1 on the new microprocessor with the tabs 2 in the microprocessor socket. Then, carefully lower the new microprocessor straight down into the microprocessor socket.

Note: The small triangle 3 on one corner of the new microprocessor is the microprocessor orientation indicator. The new microprocessor is in the correct orientation when this indicator faces toward the beveled corner 4 of the microprocessor socket.

Figure 95. Installing the microprocessor

11.Close the microprocessor retainer. Gently press down the small handle and then push the handle inward to lock the retainer into position and secure the new microprocessor in the socket.

Figure 96. Securing the microprocessor in the socket

12.Reinstall the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 154.

13.If you are instructed to return the old microprocessor, follow all packaging instructions and use any packaging materials that are supplied to you for shipping.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the replacement, go to “Completing the parts replacement” on page 162.

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