Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 69)

Removing the System Board
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of
the components inside the system. See your System 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 cover (see " Removing the Cover ").
3. Remove the power supplies (see " Removing a Power Supply ").
4. Remove the cooling fans (see " System Fans ").
5. Remove the expansion-cards (see " Expansion Cards ").
6. Remove the memory modules (see " Removing Memory Modules ").
7. Remove the memory module, hardware key, and battery for the integrated RAID controller (if those components are
installed) (see " Integrated RAID Controller ").
8. Remove the microprocessors and VRMs (see " Removing and Replacing a Microprocessor ").
9. Remove the system battery (see " Removing and Replacing the System Battery ").
10. Remove the system board (see Figure 4-32 ):
a. Lift the system board's plunger and slide the system board forward about 0.5 inch.
b. Lift the system board off its grounding tabs in the system board tray.
c. Lift the back of the system board upward and then lift the board away from the tray.
Figure 4-32. Removing the System Board
Replacing the System Board