Acer Altos R720 Series - Manual (Page 52)

3 System upgrade 42
Removing and installing the CPU air duct
Caution! Always operate your server with the CPU air duct
installed to ensure reliable and continued operation.
To remove the CPU air duct:
You will need to remove the CPU air duct to perform the following
procedures:
• Removing and installing a CPU air dam
• Removing and installing the PCI riser assembly
• Removing and installing the PCI riser board
• Removing and installing the PCI card
• Removing and installing a CPU
• Removing and installing a memory module
• Removing and installing an ARMC/3 module
1 Observe the ESD precautions and pre-installation instructions
described on page 35.
2 Lift the CPU air duct from the chassis.