Lenovo ThinkCentre M76 Hardware Maintenance Manual for ThinkCentre M76 - Page 151

microprocessor with the corresponding small triangle on one corner of the microprocessor socket.

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b. Note the orientation of the microprocessor in the socket. You can look for the small triangle 1 on one corner of the microprocessor. This is important when installing the new microprocessor on the system board. c. Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom. d. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. 7. Make sure that the small handle is in the raised position and the microprocessor retainer is fully open. 8. Remove the protective cover that protects the gold contacts of the new microprocessor. 9. Hold the new microprocessor by its sides and align the small triangle on one corner of the new microprocessor with the corresponding small triangle on one corner of the microprocessor socket. 10. Lower the new microprocessor straight down into the microprocessor socket on the system board. 11. Lower the small handle to secure the new microprocessor in the socket. 12. Reinstall the heat sink and fan assembly with the fan duct as shown. See "Replacing the heat sink and fan assembly" on page 137. Figure 85. Reinstalling the heat sink and fan assembly with the fan duct Chapter 9. Replacing FRUs (Machine Types: 3120, 3122, 3126, and 3128.) 147

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b. Note the orientation of the microprocessor in the socket. You can look for the small triangle
1
on one corner of the microprocessor. This is important when installing the new microprocessor
on the system board.
c.
Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom.
d. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be
kept as clean as possible.
7. Make sure that the small handle is in the raised position and the microprocessor retainer is fully open.
8. Remove the protective cover that protects the gold contacts of the new microprocessor.
9. Hold the new microprocessor by its sides and align the small triangle on one corner of the new
microprocessor with the corresponding small triangle on one corner of the microprocessor socket.
10. Lower the new microprocessor straight down into the microprocessor socket on the system board.
11. Lower the small handle to secure the new microprocessor in the socket.
12. Reinstall the heat sink and fan assembly with the fan duct as shown. See “Replacing the heat sink and
fan assembly” on page 137.
Figure 85. Reinstalling the heat sink and fan assembly with the fan duct
Chapter 9
.
Replacing FRUs (Machine Types: 3120, 3122, 3126, and 3128.)
147