7.Position the new hard disk drive into the hard disk drive bay and align the screw holes in the new hard disk drive with the corresponding holes in the drive bay. Then, install the four screws to secure the new hard disk drive in place.

Figure 36. Installing the hard disk drive

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 43.

Replacing the card reader

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 card reader.

Note: The card reader is available only in some models.

To replace the card reader, 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 14.

3.Remove the front bezel. See “Removing and reinstalling the front bezel” on page 15.

4.Pivot the drive bay assembly upward to gain access to all the internal cables. See “Accessing the system board components and drives” on page 16.

38ThinkCentre User Guide

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Lenovo 7539, 7548, 104, 154 manual Replacing the card reader, Installing the hard disk drive
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7539, 154, 7548, 104 specifications

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