Lenovo B520e IdeaCentre B520e Hardware Maintenance Manual (English) - Page 41

Replacing the system fan, Remove the computer stand. Refer to Removing the computer stand.

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Step 7. Step 8. Step 9. Connect the cables to the new converter board. Line up the new converter board then secure it with the screws.. Reattach the EMI cover, back deco, the computer cover and computer stand. Replacing the system fan Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: 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 system fan: Step 1. Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. Remove the computer cover. Refer to"Removing the computer cover". Remove the back deco. Refer to "Removing the back deco". Remove the computer stand. Refer to "Removing the computer stand". Remove the EMI cover. Refer to "Removing the EMI cover". Disconnect the power cable from the motherboard and detach the cables from the system fan. Remove the 4 screws that secure the system fan to the chassis and motherboard. Remove the system fan by lifting it up. Chapter 8. Replacing hardware 35

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Step 7.
Connect the cables to the new converter board.
Step 8.
Line up the new converter board then secure it with the screws..
Step 9.
Reattach the EMI cover, back deco, the computer cover and computer stand.
Replacing the system fan
Note:
Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note:
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 system fan:
Step 1.
Remove the computer cover. Refer to”Removing the computer cover”.
Step 2.
Remove the back deco. Refer to “Removing the back deco”.
Step 3.
Remove the computer stand. Refer to “Removing the computer stand”.
Step 4.
Remove the EMI cover. Refer to “Removing the EMI cover”.
Step 5.
Disconnect the power cable from the motherboard and detach the cables from the system fan.
Step 6.
Remove the 4 screws that secure the system fan to the chassis and motherboard.
Step 7.
Remove the system fan by lifting it up.
Chapter 8
.
Replacing hardware
35