Lenovo ThinkStation P900 User Manual page 135

7. To install a new full-length PCI Express card, align the notch 1 on the new full-length PCI Express card
with the slot key 2 in the PCI card slot. Then, insert the new card downward into the card slot until it is
secured tightly. See "Locating parts on the system board" on page 5.
Note: Do not touch the circuit board of the PCI card.
1
2
Figure 78. Installing the full-length PCI Express card
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Chapter 9 Installing or replacing hardware