Lenovo 3699, Hardware Maintenance Manual

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7. Lower the microprocessor retainer and then lower the lever to secure the retainer. Make sure the lever
is locked into position.
8. Follow any additional instructions included with the replacement part you received.
Note: If your system board has two microprocessor sockets, be sure to install a socket cover for each
microprocessor socket.
Replacing the hard disk drive
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the
ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy
of the ThinkCentre Safety and Warranty Guide , go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the hard disk drive if your computer has one. For
computer models that do not have an internal hard disk drive and use a remote hard disk drive accessed
through the SMC - Storage Array, contact your network or storage administrator.
To replace the hard disk drive, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Open the computer cover. See “Opening the computer cover” on page 98.
3. You might need to pivot the optical drive bay assembly upward to gain easier access to the hard disk
drive.
4. Locate the hard disk drive. See “Locating components” on page 99.
5. Push the release button 1 of the hard disk drive bracket as shown and then lift the hard disk drive
bracket up from the heat sink.
Figure 58. Removing the hard disk drive
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ThinkCentre Hardware Maintenance Manual