Lenovo S50-30 Lenovo S50-30 All-In-One PC Hardware Maintenance Manual - Page 45

Replacing the system fan, motherboard cover up.

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• 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 EMI cover Step 1. Step 2. Step 3. Step 4. Step 5. Step 6. 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 stand. Refer to "Removing the frame stand", "Removing the monitor stand", or "Removing the transformer stand". Remove the rear cover. Refer to "Removing the rear cover". Remove the three screws that secure the motherboard cover to the chassis, and then lift the motherboard cover up. Step 7. To reattach the motherboard cover: a. Line up the holes on the motherboard cover with mounting holes on the chassis, then place the motherboard cover back into position. b. Secure the motherboard cover to the chassis with three screws. Step 8. Reattach the rear cover and computer stand. Replacing the system fan Notes: • Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear 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. Chapter 8. Replacing hardware 39

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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 EMI cover
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.
Remove the three screws that secure the motherboard cover to the chassis, and then lift the
motherboard cover up.
Step 7.
To reattach the motherboard cover:
a.
Line up the holes on the motherboard cover with mounting holes on the chassis, then place
the motherboard cover back into position.
b.
Secure the motherboard cover to the chassis with three screws.
Step 8.
Reattach the rear cover and computer stand.
Replacing the system fan
Notes:
•
Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear 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.
Chapter 8
.
Replacing hardware
39