Acer Altos R720 Series - Manual (Page 79)

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3 Remove the PCI riser assembly from the server. See “To remove the
PCI riser assembly” section on page 65.
4 While holding the blue release lever in (A), align the holes in the
PCI riser board with the retention pins on the riser assembly.
5 Slide the riser board toward the left (B), then release the blue
lever to lock the board in place.
6 Observe the post-installation instructions described on page 36.
Removing and installing a PCI card
To remove a PCI card:
1 Observe the ESD precautions and pre-installation instructions
described on page 35.
2 Remove the CPU air duct. Perform the instructions described in “To
remove the CPU air duct” section on page 42.
3 Remove the PCI riser assembly from the server. See “To remove the
PCI riser assembly” section on page 65.
4 Open the rear retention clip by pushing the blue slide upward (A)
and rotating clip to the fully open position.
5 When removing a full height PCI riser board, open the full length
PCI card retention clip on the front of the riser assembly by
rotating it 90 degrees outward (B).