Lenovo 3000 H305 Desktop - Manual (Page 52)

Hardware Maintenance Manual
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12. Slide then lift the Power supply out of chassis.
13. Align then insert the new Power supply and screw it in.
14. Install all the relative parts back and reattach all the cables back.
15. Install back the fromt bezel and computer cover.
Replacing the keyboard
To replace the keyboard:
1. Remove any media (diskettes, CDs, or memory cards) from the drives,
shut down your operating system, and turn off all attached devices
and the computer.
2. Unplug all power cords from electrical outlets.
3. Locate the connector for the keyboard. Refer to “Locating connectors
on the rear of the computer” and “Locating connectors on the front of
the computer”.
Note
Your keyboard might be connected to the standard keyboard
connector at the rear of the computer or to a USB connector at
either the front or rear of the computer.