Lenovo J SERIES 3000 Bedienungsanleitung PDF herunterladen (Seite 15)

Chapter 2. Replacing hardware

Attention

Do not open your computer or attempt any repair before reading the “Important safety

information” in the Quick Reference that was included with your computer or in the

Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick

Reference or HMM, go to http://www.lenovo.com/support.

Note: Use only the parts provided by Lenovo.

Removing the cover

Important

Turn off your computer and wait 3 to 5 minutes to let the computer cool

before removing the computer cover.

To remove the computer cover:

1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your

operating system, and turn off all attached devices.

2. Unplug all power cords from electrical outlets.

3. Disconnect all cables attached to the computer. This includes power cords,

input/output (I/O) cables, and any other cables that are connected to the

computer.

4. Remove the optional floor stand, if attached.

5. Remove any locking devices such as a padlock that secure the cover.

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Lenovo J SERIES 3000 Bedienungsanleitung Seite 15