Replacing The Primary Hard Disk Drive - Lenovo thinkcentre e73 Hardware Maintenance Manual

2. Remove the computer cover. See "Removing the computer cover" on page 82.
3. Depending on your computer model, you might need to remove the PCI Express x 16 graphics card for
easier access to the battery. See "Installing or replacing a PCI Express card" on page 84.
4. Remove the old battery.
Figure 22. Removing the old battery
5. Install a new battery.
Figure 23. Installing a new battery
6. Reinstall the PCI Express x 16 graphics card if you had removed it. See "Installing or replacing a PCI
Express card" on page 84.
7. Reinstall the computer cover and connect the cables. See "Completing the parts replacement" on
page 121.
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 6 "Using the Setup
Utility program" on page 55.

Replacing the primary hard disk drive

Attention: Do not open your computer or attempt any repair before reading and understanding "Important
safety information" on page 1.
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 82.
3. Locate the primary hard disk drive. See "Locating internal drives" on page 73.
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.
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ThinkCentre E73 Hardware Maintenance Manual