Installing System Components 93
System Board
WARNING: Whenever you need to lift the system, get others to assist you.
Toavoid injury, do not attempt to lift the system by yourself.
CAUTION: Many repairs may only be done by a certified service technician.
Youshould only perform troubleshooting and simple repairs as authorized in
yourproduct documentation, or as directed by the online or telephone service
andsupport team. Damage due to servicing that is not authorized by Dell is
notcovered by your warranty. Read and follow the safety instructions that
camewith the product.

Removing the System Board

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 53.
3
Remove the cooling shroud. See "Removing the Cooling Shroud" on
page54.
4
Remove all memory modules. See "Removing Memory Modules" on
page64.
5
Remove the expansion card-riser. See "Removing the Expansion-Card
Riser" on page 66.
6
Remove the heat sinks. See "Removing the Heat Sink" on page 56.
7
Remove the processors. See "Removing the Processor" on page58.
8
Disconnect the power, IPMB, SATA, front panel, and system board cable
connectors from the motherboard.
CAUTION: Do not lift the system board assembly by grasping a memory module,
processor, or other components.
9Loosen the ten screws securing the system board, and then slide the
board back, up and out of the system. See Figure3-26.
book.book Page 93 Friday, December 4, 2009 4:13 PM