Lenovo ThinkStation P920 Hardware Maintenance Manual page 175

c. Disconnect the power cable from the full-length PCIe card, and then grasp the card and gently pull it
out of the slot.
Figure 123. Removing the full-length PCIe card
Notes:
• If the card is connected to other device, disconnect the cables from the card.
• The card might fit tightly into the slot. If necessary, alternately move each side of the card a small
amount until the card is removed from the slot.
6. To install a full-length PCIe card, do the following:
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Chapter 9 Hardware removal and installation