Lenovo ThinkStation D20 Hardware Maintenance Manual - Page 131
Important, Notes, Holding the microprocessor with your fingers
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Important Touch only the sides of the microprocessor. Do not touch the gold contacts on the bottom. 5. Lift the microprocessor straight up and out of the socket. Notes: a. Note the orientation of the notches 1 on the microprocessor. This is important when reinstalling the microprocessor on the new system board. b. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. 6. Holding the microprocessor with your fingers, position the microprocessor so that the notches on the microprocessor are aligned with the tabs in the microprocessor socket. Important To avoid damaging the microprocessor contacts, do not tilt the microprocessor when installing it into the socket. 7. Lower the microprocessor straight down into the microprocessor socket of the system board. Chapter 11. Replacing FRUs (Type 4155, 4158, 4218) 123