Lenovo ThinkCentre M77 2227 SFF User Manual page 45

2. Open the computer cover. See "Opening the computer cover" on page 28.
3. Rotate the PCI card retainer to the open position.
4. Depending on whether you are installing or replacing a PCI card, do one of the following:
• If you are installing a PCI card, remove the appropriate metal slot cover.
• If you are replacing an old PCI card, grasp the old card that is currently installed and gently pull it
out of the slot.
Figure 14. Removing a PCI card
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.
b. If the card is held in place by a retaining latch, press the card retaining latch
disengage the latch. Grasp the card and gently pull it out of the slot.
1 as shown to
.
Chapter 5 Installing or replacing hardware
33