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3. Align the notches 1 of the microprocessor socket cover with the alignment keys 2 of the microprocessor
socket. Lower the socket cover straight down into the microprocessor socket on the system board.
Note: Your microprocessor socket and cover might look slightly different from the illustration.
4. Carefully press the socket cover straight down until it is secured into the socket.
5. Lower the microprocessor retainer and then lower the lever to secure the retainer. Make sure the
lever is securely locked into position.
Replacing the primary hard disk drive
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the ThinkStation User Guide. To obtain a copy of the ThinkStation User Guide, go to:
http://www.lenovo.com/ThinkStationUserGuides.
This section provides instructions on how to replace the primary hard disk drive.
To replace the primary hard disk drive, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 72.
3. Locate the primary hard disk drive.
4. Disconnect the signal cable and the power cable from the hard disk drive.
Chapter 9. Replacing FRUs 93