Lenovo ThinkEdge SE455 V3 User Manual page 223

Figure 192. Removing the system board
After this task is completed
• Install a replacement unit. See
• If you are instructed to return the component or optional device, follow all packaging instructions, and use
any packaging materials for shipping that are supplied to you.
Important: Before you return the system board, make sure that you install the processor socket cover
from the new system board. To replace a processor socket cover:
1. Take a socket cover from the processor socket assembly on the new system board and orient it
correctly above the processor socket assembly on the removed system board.
2. Gently press down the socket cover legs to the processor socket assembly, pressing on the edges to
avoid damage to the socket pins. You might hear a click on the socket cover is securely attached.
3. Make sure that the socket cover is securely attached to the processor socket assembly.
• If you plan to recycle the component, see
Install the system board
Follow instructions in this section to install the system board.
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CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
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"Install the system board" on page
"Disassemble the system board for recycle" on page
215.
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Chapter 5 Hardware replacement procedures
303.
215