Acer Altos R710 - Manual (Page 74)

4 Configuring the system 62
Removing and Installing the PCI Riser Assembly
You will need to remove the PCI riser assembly from the chassis to
replace the PCI riser boards, or to add or remove a PCI add-in card.
Removing the PCI Riser Assembly
Use the following instructions to remove the PCI riser assembly from
the chassis.
1
Remove the chassis cover
2 Remove Processor Air Duct.
3 Disconnect any cables attached to add in cards.
4 Lift up on the two blue levers to lift the PCI Riser assembly from
the chassis.