Lenovo System x3850 X6 Installation And Service Manual page 299

• Use the microprocessor installation tool that came with the new microprocessor to remove and install the
microprocessor.
• Be sure to only install microprocessors that have the same speed, number of cores, and frequency.
• Each microprocessor socket must always contain either a socket cover or a microprocessor and heat
sink.
• Be sure to use only the microprocessor installation tool provided with the new microprocessor to remove
or install the microprocessor. Do not use other tools.
• The microprocessor installation tool has the microprocessor installed on the tool, and might have a
protective cover over the microprocessor. Do not use the tool or remove the cover from the
microprocessor until you are instructed to do so.
To remove a microprocessor and heat sink, complete the following steps:
Step 1. Before you begin, read "Safety" on page v and "Installation guidelines" on page 44 .
Step 2. Turn off the server (see "Turning off the server" on page 40) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables as necessary to replace the
device.
Step 3. Remove the compute book from the server.
Step 4. Remove the compute book cover (see "Removing the compute book cover" on page 222).
Step 5. Remove the heat sinks:
a. Use a screwdriver to loosen the captive screw on one side of the heat sink to break the seal
with the microprocessor.
b. Loosen all the captive screws on the heat sink, rotating each screw one full turn until each
screw is loose.
c. Gently lift the heat sink from the microprocessor.
Step 6. After removal, place the heat sink on its side on a clean, flat surface.
Step 7. Open the microprocessor socket release levers and microprocessor retainer.Attention: Do not use
any tools or sharp objects to lift the release levers on the microprocessor socket. Doing so might
result in permanent damage to the board.
a. Locate the two release levers on the microprocessor socket.
b. Press the release lever on the right down and inward toward the socket and lift it up to the fully
open position; then, press the release lever on the left down and inward toward the socket and
it opens up to the fully open position.
c. Open the microprocessor retainer by lifting up on the retainer tab.
Attention: Do not touch the contacts on the microprocessor and the microprocessor socket.
Heatsink
Chapter 6
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Removing and replacing components
285