Step 5. Slide the new optical drive into the bay from the front until it snaps into
position.
Step 6. Connect the data and power cables to the new disk drive.
Step 7. Reattach the front bezel and computer cover.
Replacing the microprocessor fan assembly
To replace the microprocessor fan assembly:
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. Disconnect the fan power cable from the connector on the motherboard.
Step 6. Remove the 4 screws that secure the microprocessor fan to the heat-sink
and lift up the microprocessor fan to remove it.
42 Lenovo Legion Y720T Hardware Maintenance Manual
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