d.
Carefully press the socket cover straight downwards until it is secured into
the socket.
e.
Lower the microprocessor retainer and then lower the lever to secure the
retainer. Make sure the lever is securely locked into position.
f.
Follow any additional instructions included with the replacement part you
received.
13.
Install the new system board into the chassis and align the screw holes with
those in the chassis. Insert and tighten the screws that secure the system board
following the sequence shown in the figure above.
14.
Install the memory modules in the same location on the new system board.
15.
Install the microprocessor on the new system board. See “Replacing the
microprocessor” on page 111
16.
Install the heat sink and fan assembly on the new system board. See
“Replacing the heat sink” on page 109.
17.
Connect the heat sink and fan assembly cable to the new system board. See
“Locating parts on the system board” on page 137.
18.
Install the hard disk drive fan. See “Replacing the hard disk drive fan
assembly” on page 121.
19.
Connect all cables to the system board. See the system board illustration for
your machine type at “Locating parts on the system board” on page 137.
20.
Go to “Completing the FRU replacement” on page 131.
Replacing a hard disk drive
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the
ThinkStation Safety and Warranty Guide
that came
with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide
, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the hard disk drive.
154
Hardware Maintenance Manual
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