Dell Inspiron 20 3048 Owners Manual - Page 9
Before Working Inside Your Computer, Before You Begin, Safety Instructions - how to open
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Before Working Inside Your Computer CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts. Before You Begin 1 Save and close all open files and exit all open applications. 2 Shut down your computer. - Windows 8: Move your mouse pointer to the upper-right or lowerright corner of the screen to open the charms sidebar, and then click or tap Settings → Power → Shut down. - Windows 7: Click or tap Start → Shut down . 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 cables such as telephone cables, network cables and so on, from your computer. 5 Disconnect all attached devices and peripherals, such as keyboard, mouse, monitor, and so on, from your computer. 6 Remove any media card and optical disc from your computer, if applicable. 7 After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board. CAUTION: Place the computer on a flat, soft and clean surface to avoid scratching the display. 8 Place the computer face down. Safety Instructions Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety. 9