Dell POWER EDGE 2900, Hardware Owner'S Manual

Page: 82 / 182

82
Installing System Components
Removing the Back Fan Bracket
CAUTION:
Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
1
Turn off the system, including any attached peripherals, and disconnect the system from the electrical
outlet.
2
Remove the front bezel, if attached. See "Removing the Bezel" on page 50 .
3
Open the system. See "Opening the System" on page 53 .
4
Remove the memory cooling shroud. See "Removing the Cooling Shroud" on page 79 .
5
Remove the fans from the back fan bracket. See "Removing and Installing a Fan" on page 65 .
6
To remove the back fan bracket, push down on the blue latch along the rear chassis wall and slide
the bracket upwards. See
Figure 3-20 .
Replacing the Back Fan Bracket
1
Slide the left and right edges of the bracket into the two corresponding channels on the inside of
the system chassis back panel. See
Figure 3-20 .
2
Lower the bracket into the system until the two tabs on the top edge of the bracket fit into the slots in
the system back panel.
3
Replace the memory cooling shroud .
NOTICE:
Never operate your system with the memory cooling shroud removed. Overheating of the system can
develop quickly resulting in a shutdown of the system and the loss of data.
4
R eplace the fans into the fan bracket.
5
Close the system. See "Closing the System" on page 53 .
6
Replace the front bezel, if removed.
7
Reconnect the system to the electrical outlet and turn on the system and attached peripherals.
Memory
You can upgrade your system memory to a maximum of 48 GB by installing 533MHz or, when available,
667MHz fully buffered DIMMs (FBDs) in dual sets of 256-MB, 512-MB, 1-GB, 2-GB, or 4-GB. The
memory sockets are located on the system board beneath the cooling shroud. See Figure 6-2.
NOTICE:
If you remove your original memory modules from the system during a memory upgrade, keep them
separate from any new memory modules that you may have. Use only 533 MHz or, when available, 667 MHz FBDs.
The memory module sockets are arranged on the system board in two equal branches (0 and 1). See
Figure 3-21. Each branch consists of two channels:
• Channel 0 and channel 1 are in branch 0.
• Channel 2 and channel 3 are in branch 1.