
Installing System Components | 233
Middle Planes
Removing the Middle Planes
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow the safety instructions that came with
the product.
1
It is recommended to turn off the system, including any attached
peripherals, and disconnect the system from its electrical outlet.
2
Open the system. See “Opening the System” on page 218.
3
Remove the system-board assemblies. See “Removing a System-Board
Assembly" on page 142.
4
Remove the cooling-fan cage. See “Removing a Cooling Fan” on page
220.