Dell PowerEdge 2850 - Manual (Page 8)

2. Align the alignment pin on the bottom of the fan tray with the alignment hole on the system board.
3. Slide the fan tray straight down.
4. Press the two left latches until the release tab securely snaps into its securing slot.
Figure 1-5. Installing the Back Fan Tray
5. Replace the two back fans.
6. Close the system.
7. If applicable, install the bezel.
System Board
Removing the System Board
1. If applicable, remove the bezel:
a. Use the system key to unlock the bezel.
b. Press the tab at the left end of the bezel.
c. Rotate the left end of the bezel away from the system to release the right end of the bezel.
d. Pull the bezel away from the system.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system:
a. Loosen the two thumbscrews that secure the cover to the chassis.
b. Slide the top cover backward and grasp the cover at both sides.
c. Carefully lift the cover away from the system.
4. Remove the expansion-card cage.
5. Remove any cables from the system board.
6. Remove the back fans and the back-fan tray.
7. Remove the front fans.
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.