IBM 7378, Problem Determination And Service Manual

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d. Make sure that the microprocessor is oriented, aligned, and positioned in
the socket before you try to close the lever.
4. Install the microprocessor:
a. Touch the static-protective package that contains the microprocessor to any
unpainted metal surface on the server. Then, remove the microprocessor
from the package.
b. Remove the protective cover, tape, or label from the surface of the
microprocessor socket, if any is present.
c. Align the microprocessor with the socket. The microprocessor has two
notches that are keyed to two tabs on the sides of the socket. A
triangle-shaped indicator on one corner of the microprocessor points to a
45-degree angle on one corner of the socket.
d. Carefully place the microprocessor into the socket. Do not use excessive
force when you press the microprocessor into the socket.
Note: The microprocessor fits only one way on the socket.
5. Close the microprocessor bracket frame and hold it down; then, close the
microprocessor retention latch and lock it securely in place.
6. Install a heat sink on the microprocessor.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide