Lenovo M4400s notebook - Manual (Page 47)

6. Install the new backup battery.
Figure 13. Installing the new backup battery
7. Reinstall the bottom slot cover, and then reinstall the screws.
8. Reinstall the battery pack. See “Replacing the battery pack” on page 29.
9. Turn the computer over again. Connect the ac power adapter and all cables.
Replacing the hard disk drive
Before you start, print these instructions.
Attention: The hard disk drive is very sensitive. Incorrect handling can cause damage and permanent loss
of data. Observe the following guidelines:
• Replace the hard disk drive only if you upgrade it or have it repaired. The connectors and slot of the hard
disk drive are not designed for frequent changes or drive swapping.
• Do not drop the drive or subject it to physical shocks. Put the drive on a material, such as soft cloth,
that absorbs physical shocks.
• Do not apply pressure to the cover of the drive.
• Do not touch the connector.
• Before removing the hard disk drive, make a backup copy of all the information on it, and then turn
off the computer.
• Never remove the drive while the computer is operating, in sleep mode, or in hibernation mode.
To replace the hard disk drive, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to five minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery pack. See “Replacing the battery pack” on page 29.
Chapter 6 . Replacing hardware 33