1 Upgrading your computer - 5
Pre-installation instructions
Always observe the following before you install any
component:
1. Make sure that the ODD and card reader slot is empty.
2. Turn off the power to the computer and all peripherals.
3. Unplug the power cord from the computer.
4. Unplug the network cable and all connected peripheral
devices from the computer.
5. Place the computer on a flat, steady surface.
6. Open your computer according to the instructions on
Removing the left side system cover on page 6.
7. See the following sections for specific instructions on the
component you wish to install.
Post-installation instructions
Observe the following after installing a computer
component:
1. See to it that the components are installed according to
the step-by-step instructions in their respective sections.
2. Replace any expansion boards or peripherals that you
removed earlier.
3. Replace the system cover. See Installing the left side
system cover on page 7.
4. Connect the necessary cables.
5. Turn on your computer.
Not turning off the computer properly before you start installing
the components may cause serious damage. Do not attempt the
procedures described in the following sections unless you are a
qualified service technician.
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