Lenovo 7848, Hardware Maintenance Manual

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9. Turn on the computer and all attached devices.
10.
Use the Setup Utility program to set the date and time and any passwords.
See Chapter 6, “Using the Setup Utility,” on page 49.
11. Go to “Completing the FRU replacement” on page 107.
Replacing the power supply
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide , go to:
http://www.lenovo.com/support
Attention
Never remove the cover on a power supply or any part that has the
following label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no servicable parts inside
these components.
1. Remove the computer cover. See “Removing the computer cover” on page 86.
2.
Disconnect all power supply cables from the drives.
3. Disconnect all power supply cables from the system board. See “Identifying
parts on the system board” on page 85.
4. At the rear of the chassis, remove the four screws that secure the power supply.
Chapter 8. Replacing FRUs (Type 7848)
95