Lenovo ThinkCentre 3231 User Manual page 25

To install or replace a PCI card:
1. Remove the computer cover. See "Removing the computer cover" on page 14.
2. At the rear of the computer, press the release button 1 to open the card latch
2 . Remove the appropriate slot cover. If you are replacing an old PCI card,
remove the old card that is currently installed.
Figure 7. Opening the card latch
Notes:
a. The card fits tightly into the card slot. If necessary, alternate moving each
side of the card a small amount until it is removed from the card slot.
Chapter 2. Installing options and replacing hardware
17