Attention: Make sure that the release lever on the microprocessor
socket is in the fully open position before you insert the microprocessor in
the socket. Failure to do so might result in permanent damage to the
microprocessor, microprocessor socket, and system board.
c. Rotate the release lever on the microprocessor socket from its closed and
locked position to its fully open position.
Microprocessor
release lever
(fully open)
Microprocessor
bracket frame
Attention:
v Do not use excessive force when pressing the microprocessor into the
socket.
v Make sure that the microprocessor is oriented and aligned with land
number 1 in the socket before you try to close the lever.
d. Align the microprocessor with the socket (note the alignment mark and the
position of the notches); then, carefully place the microprocessor on the
socket and close the microprocessor bracket frame.
Microprocessor
Microprocessor socket
Microprocessor
release lever
Alignment marks
e. Carefully close the release lever to secure the microprocessor in the
socket.
9. Install the heat sink.
Attention: Do not touch the thermal grease on the bottom of the heat sink or
set down the heat sink after you remove the plastic cover. Touching the
thermal grease will contaminate it.
a. Make sure that the heat-sink lever is in the open position.
b. Remove the plastic protective cover from the bottom of the heat sink.
c. Align the heat sink above the microprocessor with the thermal-grease side
down. Press firmly on the heat sink.
50 System x3400 Types 7973, 7974, 7975, and 7976: User’s Guide
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