Lenovo E50-05 Lenovo E50-05 Series Hardware Maintenance Manual - Page 46

Replacing the front I/O board, Unplug all power cords from electrical outlets.

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Step 10. Lower the microprocessor straight down into its socket on the motherboard. Step 11. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position with the small handle. Step 12. 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 13. Reattach the heat-sink assembly and the computer cover. Replacing the front I/O board Note: For this procedure, it helps to lay the computer flat. To replace the front I/O board: Step 1. Step 2. Step 3. Step 4. Step 5. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Unplug all power cords from electrical outlets. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to "Left and right view" and "Rear view" for help with locating the various connectors. Remove the computer cover. Refer to "Removing the computer cover". Remove the front bezel. Refer to "Removing the front bezel". 40 Lenovo E50-05 Series Hardware Maintenance Manual

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Step 10. Lower the microprocessor straight down into its socket on the motherboard.
Step 11. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
position with the small handle.
Step 12. 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 13. Reattach the heat-sink assembly and the computer cover.
Replacing the front I/O board
Note:
For this procedure, it helps to lay the computer flat.
To replace the front I/O board:
Step 1.
Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2.
Unplug all power cords from electrical outlets.
Step 3.
Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to “Left and right view”
and “Rear view” for help with locating the various connectors.
Step 4.
Remove the computer cover. Refer to “Removing the computer cover”.
Step 5.
Remove the front bezel. Refer to “Removing the front bezel”.
40
Lenovo E50–05 Series Hardware Maintenance Manual