Lenovo IdeaCentre B520 - Manual (Page 31)

Chapter 8. Replacing hardware
29
Removing the computer cover
Attention
Turn off the computer and wait 3 to 5 minutes to let the computer
cool down before removing the computer cover.
Note
It may be helpful to place the computer face-down on a soft flat surface for
this procedure. Lenovo recommends that you use a blanket, towel, or other
soft cloth to protect the computer screen from scratches or other damage.
To remove the computer cover
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down
the operating system, and turn off the computer and 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. Refer to “Left and right view” and “Rear
view” for help with locating the various connectors.
4. Remove the 2 cover pieces by sliding them in opposite directions as shown.