Acer Altos R520 用户手册

 3 System upgrade

56

Removing and installing a PCI riser 
assembly

Note: The PCI riser assembly includes an intrusion switch that 
engages the system cover. The intrusion switch is provided to 
allow server management software to monitor removal of the top 
cover from the server. 

Caution! The PCI riser assembly must be installed to maintain 
proper airflow inside the server. 

This section explains how to access the PCI riser assembly and remove 
and install PCI cards. 

To remove the PCI riser assembly:

1

Observe the ESD precautions and pre-installation instructions 
described on page 39.

2

Remove the CPU air duct. Perform the instructions described in “To 
remove the CPU air duct” section on page 45.

3

Diconnect any cables attached to an installed PCI card. 

4

Grasp both riser latches with thumb and forefinger, then pull up to 
release the riser assembly.