Lenovo C325 Lenovo C225\C320\C325 Hardware Maintenance Manual - Page 50

Replacing the rear I/O module, Step 14. Holding the sides of the microprocessor with your fingers

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Step 14. 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, keep the microprocessor completely level while installing it into the socket. Step 15. Lower the microprocessor straight down into its socket on the motherboard. Step 16. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position with the small handle. Step 17. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the grease syringe). Step 18. Reattach the heatsinl, the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacing the rear I/O module Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer cover. 46 Lenovo C2/C3 Hardware Maintenance Manual

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Step 14. 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, keep the microprocessor completely level
while installing it into the socket.
Step 15. Lower the microprocessor straight down into its socket on the motherboard.
Step 16. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
position with the small handle.
Step 17. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each
drop of grease should be 0.03ml (3 tick marks on the grease syringe).
Step 18. Reattach the heatsinl, the EMI cover, the computer cover, the speaker cover, the hard disk drive
cover and the optical disk drive.
Replacing the rear I/O module
Note:
Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the
computer cover.
46
Lenovo C2/C3 Hardware Maintenance Manual