Lenovo ThinkCentre Edge 71, Hardware Maintenance Manual

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6. Carefully check the four corners of the socket cover to make sure that the cover is secured in the
microprocessor socket.
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.
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
ThinkCentre User Guide . To obtain a copy of the ThinkCentre User Guide , go to:
http://www.lenovo.com/ThinkCentreUserGuides
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 79.
3. Locate the primary hard disk drive. See “Locating internal drives” on page 78.
Note: There is also a secondary hard disk drive bay for you to purchase and install a secondary hard
disk drive by yourself. If you want to install a secondary hard disk drive, use the same way of installing
the primary hard disk drive.
4. Disconnect the signal cable and the power cable from the hard disk drive.
5. Remove the four screws that secure the hard disk drive. Then, slide the hard disk drive out of the chassis.
Figure 28. Removing the primary hard disk drive
Chapter 8
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Replacing FRUs (Machine Types: 1577, 1579, and 1607)
99