HP Integrity rx1600 Operation and Maintenance Guide

Chapter 4
Installing and Configuring
Installing Additional PCI Cards
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Step 2. Release the PCI I/O riser by turning the jackscrew. This action frees the PCI I/O riser from the system board.
Figure 4-17 Using Jackscrew to Release PCI I/O Riser
Step 3. Remove the PCI I/O Riser from the chassis.
Figure 4-18Removing the PCI I/O Riser Assembly