Installing The Processor; Removing The System Board - Dell Precision Tower 3420 Owner's Manual

Installing the processor

1. Align the processor with the socket keys.
2. Align the pin-1 indicator of the processor with the triangle on the socket.
3. Place the processor on the socket such that the slots on the processor align with the socket keys.
4. Close the processor shield by sliding it under the retention screw.
5. Lower the socket lever and push it under the tab to lock it.
6. Install the:
a. heat sink
b. hard drive
c. front bezel
d. cover
7. Follow the procedure in

Removing the system board

1. Follow the procedure in
2. Remove the:
a. cover
b. front bezel
c. hard drive
d. optical drive
e. heat sink fan cover
f. heat sink
g. system fan
h. memory module
i. PCIe SSD
3. Disconnect the cables from the system board.
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After Working Inside Your
Before Working Inside Your
Computer.
Computer.