Removal and replacement procedures  58 
5. 
Disconnect all cables connected to the expansion board. 
6.  Lift the release tabs, and then rotate them 180° counterclockwise. 
7.  Lift the PCI riser cage to unseat the PCI riser boards. 
o  Primary PCI riser cage 
 
o  Secondary PCI riser cage (optional) 
 
To replace the component, reverse the removal procedure. 
 
GPU retaining bracket 
To remove the component: 
1.  Power down the server (on page 31). 
2.  Remove all power: 
a.  Disconnect each power cord from the power source.