Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 121
Lower the new microprocessor straight down into the microprocessor socket on the system board.
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Figure 55. Removing the microprocessor 7. Make sure that the small handle is in the raised position. 8. Remove the new microprocessor 1 from the protective cover 2 that protects the gold contacts on the bottom of the new microprocessor. 9. Hold the new microprocessor by the edges and align the notches on it with the tabs in the microprocessor socket, or align the small triangle on one corner of the microprocessor with the corresponding beveled corner of the microprocessor socket. 10. Lower the new microprocessor straight down into the microprocessor socket on the system board. 11. Close the microprocessor retainer and lock it into position with the small handle to secure the new microprocessor in the socket. 12. Reinstall the heat sink and fan assembly. See "Replacing the heat sink and fan assembly" on page 110. 13. To complete the replacement, go to "Completing the parts replacement" on page 132. Chapter 9. Replacing FRUs (Machine Types: 0889, 5023, and 7844.) 115