Lenovo THINKCENTRE 4485 - Manual (Page 90)

3. At the rear of the computer, press the release button 1 to open the card latch 2 .
Figure 8. Opening the PCI card latch
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.
82 ThinkCentre Hardware Maintenance Manual