6. Install a new battery.

Figure 15. Installing a new battery

7.Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on page 52.

Note: When the computer is turned on for the first time after replacing the battery, an error message might be displayed. This is normal after replacing the battery.

8.Turn on the computer and all attached devices.

9.Use the Setup Utility program to set the date, time, and any passwords. See Chapter 4 “Using the Setup Utility program” on page 63.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the installation or replacement, go to “Completing the parts replacement” on page 52.

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.

To replace the hard disk drive, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 15.

3.Locate the hard disk drive in the computer. See “Component locations” on page 11.

Chapter 2. Installing or replacing hardware 25

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Lenovo 800, 3091, 3265, 4285, 870, 852, 5205, 5248, 3678, 3650, 3429, 3373 Replacing the hard disk drive, Installing a new battery
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852, 800, 3091, 3429, 5248 specifications

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