152 Installing System Components
System Board
Removing the System Board
  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.
 
CAUTION: If you are using the Trusted Program Module (TPM) with an encryption 
key, you may be prompted to create a recovery key during program or system 
setup. Be sure to create and safely store this recovery key. If you replace this 
system board, you must supply the recovery key when you restart your system or 
program before you can access the encrypted data on your hard drives. 
1
Turn off the system and attached peripherals, and disconnect the system 
from the electrical outlet.
2
Open the system. See "Opening the System" on page 83.
3
Remove the cooling shroud. See "Removing the Cooling Shroud" on 
page 86.
4
Remove the power supplies. See "Removing a Power Supply" on page 102 
or "System Memory" on page 104.
5
Remove all expansion cards and, if applicable, the storage controller card. 
See "Removing an Expansion Card" on page 115 and "Removing the 
Storage Controller Card" on page 119.
6
Remove the expansion-card riser. See "iDRAC6 Express Card (Optional)" 
on page 122.
7
Remove the heat sinks, processors, and heat-sink blanks. See "Removing a 
Processor" on page 128.
8
If installed, remove the iDRAC6 Enterprise card. See "Removing an 
iDRAC6 Enterprise Card" on page 126.
9
If installed, remove the iDRAC6 Express card. See "Removing an iDRAC6 
Express Card" on page 123.
10
Disconnect all cables from the system board.
book.book  Page 152  Tuesday, August 24, 2010  1:47 PM