Lenovo 9354 - Manual (Page 100)

8 Voltage-selection switch (some models) 17 Standard keyboard connector
9 PCI adapter connectors (2)
Removing the cover
CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and wait
three to five minutes to let the computer cool before opening the computer cover.
This section provides information on how to remove the cover.
To remove or replace the cover, do the following:
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down the 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 any locking devices such as a padlock that secure the cover.
5. If the cover is secured with thumbscrews, remove them.
6. Press the button near the front of the computer cover and slide the cover to the rear, and remove it. If
your computer has screws to secure the computer cover, remove the screws, and then remove the cover.
Locations
The following illustration will help you locate the major FRUs in the computer.
94 ThinkCentre Hardware Maintenance Manual