Before Working Inside Your Computer; Before You Begin - Dell D27M Service Manual

Before working inside your
computer
NOTE: The images in this document may differ from your computer
depending on the configuration you ordered.

Before you begin

1 Save and close all open files and exit all open applications.
2 Shut down your computer. Click Start →
NOTE: If you are using a different operating system, see the
documentation of your operating system for shut-down instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all attached network devices and peripherals, such as keyboard,
mouse, and monitor from your computer.
5 Remove any media card and optical disc from your computer, if applicable.
6 After the computer is unplugged, press and hold the power button for 5 seconds
to ground the system board.
12
Power → Shut down.