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To replace the system fan:
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 stand. Refer to "Removing the frame stand", "Removing the monitor stand",
or "Removing the transformer stand".
Step 5.
Remove the rear cover. Refer to "Removing the rear cover".
Step 6.
Disconnect the power cable from the connector on the motherboard.
Step 7.
Remove the two screws that secure the system fan to the rear cover.
Step 8.
Lift up the system fan to remove it.
Step 9.
To install the new system fan:
a.
Line up the new system fan with the mounting holes on the rear cover and place it into position.
b.
Secure the new system fan to the rear cover with the two screws.
c.
Connect the new power cable to the connector on the motherboard.
Step 10. Reattach the rear cover and computer stand.
Replacing the heat-sink
Notes:
• Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
• It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from
scratches or other damage.
To replace the heat-sink
40
Lenovo S50-30 All-In-One PC Hardware Maintenance Manual
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