5.Install the new PCI card into the appropriate PCI card slot on the system board. Then, install the screw to secure the new PCI card in place.

Figure 12. Installing the PCI card

6.If necessary, connect any cables between the PCI card and the system board. See “Locating parts on the system board” on page 9 to identify the various connectors on the system board.

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.

Installing or replacing a memory module

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 install or replace a memory module.

Your computer has four memory slots for installing or replacing DDR3 SDRAM DIMMs that provide up to a maximum of 16 GB of system memory. When installing or replacing a memory module, use 1 GB, 2 GB or 4 GB DDR3 SDRAM DIMMs in any combination up to a maximum of 16 GB of system memory.

To install or replace a memory module, 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.

20ThinkCentre User Guide

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Lenovo 7548, 104, 7539, 154 manual Installing or replacing a memory module, What to do next
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7539, 154, 7548, 104 specifications

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