Lenovo 4223, 4228, 4229 manual Removing the microprocessor

•Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible.

Figure 39. Removing the microprocessor

8.Touch the static-protective package that contains the new microprocessor to any unpainted surface on the outside of the computer. Then, remove the new microprocessor from the package.

9.Remove the new microprocessor from the protective cover that protects the gold contacts on the bottom of the new microprocessor. Do not touch the pins on the microprocessor socket or the gold contacts on the bottom of the new microprocessor.

Figure 40. Do not touch the pins

Chapter 10. Replacing FRUs 93