Dell DX6000 - Manual (Page 130)

130 Installing System Components
Replacing the Riser 2 Board on the Expansion-Card Bracket
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 Place the riser board in the expansion-card bracket so that the four tab
hooks are fully inserted through the tab slots on the riser board. See
Figure 3-24.
2 Slide the riser board into the tab hooks.
3 Using a Phillips screwdriver, secure the board with the Phillips screw.
4 Reinstall expansion-card riser 2. See "Replacing Expansion-Card Riser 2"
on page 127.
5 Install all expansion cards in the expansion-card slots. See "Installing an
Expansion Card" on page 121.
6 Close the system. See "Closing the System" on page 83.
7 Reconnect your system and peripherals to their electrical outlets, and turn
on the system.
System Memory
Your system supports DDR3 registered DIMMs (RDIMMs) or ECC
unbuffered DIMMs (UDIMMs). Single and dual-rank DIMMs can be 1067-
or 1333-MHz, and quad-rank DIMMs can be 1067-MHz.
The system contains 18 memory sockets split into two sets of nine sockets,
one set for each processor. Each nine-socket set is organized into three
channels of three memory sockets per channel. The first socket of each
channel is marked with white release levers.