Lenovo IdeaCentre B520 - Manual (Page 47)

Chapter 8. Replacing hardware
45
9. Make sure that the microprocessor retainer is fully open.
10. Holding the sides of the microprocessor with your fingers, remove
the protective cover 2 that protects the gold contacts on the new
microprocessor 1 .
11. Holding the sides of 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.
12. Lower the microprocessor straight down into its socket on the
motherboard.