Lenovo ThinkStation C20 User Manual page 28

This section provides instructions on how to install or replace a PCI card. Your computer has the following
six expansion slots for installing or replacing PCI cards:
• Two PCI card slots
• One PCI Express x1 card slot
• One PCI Express x4 card slot (x16 mechanical)
• Two PCI Express x16 card slots
To install or replace a PCI card, 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 13.
3. Remove the PCI card holder. See "Removing and reinstalling the PCI card holder" on page 15.
4. 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, as shown:
Figure 16. 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 then gently pull it out of the slot.
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ThinkStation User Guide
1 as shown to