Microprocessor - Lenovo ThinkStation P520 Hardware Maintenance Manual

5. To install a new front panel I/O cage, note the orientation and insert the cage from the front of the
chassis into the flex bay until you hear a click. The front panel I/O cage is secured in place.
Figure 169. Installing the front panel I/O cage
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 202.

Microprocessor

Attention: Before you replace any FRU, be sure to read and understand Chapter 1 "Read this first:
Important safety information" on page 1.
CAUTION:
Avoid contact with hot components inside the computer. During operation, some components
become hot enough to burn the skin. Before you open the computer cover, turn off the computer,
disconnect power, and wait approximately 10 minutes for the components to cool.
Notes:
• Ensure that you install the correct type of microprocessor option your computer supports.
• Your microprocessor, socket, and socket cover might look slightly different from the illustrations in this
topic.
To remove or install the microprocessor, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 103.
2. Lay the computer on its side for easier access to the system board.
3. Locate and remove the heat sink and fan assembly. See "Heat-sink-and-fan assembly" on page 162.
Note: Place the heat sink and fan assembly on its side. Ensure that the thermal grease on the bottom of
it does not get in contact with anything.
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P520 Hardware Maintenance Manual