IBM 6343 Hardware Maintenance Manual page 59

4. The power supply will lock in the open position with a metal tab.
5. To replace the power supply, push in the metal tab and reverse these steps.
Identifying parts on the system board
The system board, also called the planar or motherboard, is the main circuit board in
your computer. It provides basic computer functions and supports a variety of
devices that are IBM-installed or that you can install later.
See the following illustration for the location of parts on the system board.
1 Microprocessor 8 Clear CMOS/Recovery jumper
Chapter 4. Installing Options
51