Replacing The Power Board Assembly - Lenovo 90FB Manual

Step 6. Disconnect the data cables from the connectors on motherboard.
Step 7. Remove the screw that secures the front USB/card reader/audio module to the chassis.
Step 8. Slide out the front USB/card reader/audio module out of chassis.
Step 9. Install the new front USB/card reader/audio module:
a. Slide the front USB/card reader/audio module in and secure it with screw.
b. Connect the data cables to the motherboard.
Step 10. Reattach the top front bezel, computer cover.

Replacing the power board assembly

Note: For this procedure, it helps to lay the computer on a flat, stable surface.
To replace the power board assembly:
Step 1. Remove the computer cover. Refer to "Removing the computer cover".
Step 2. Remove the top front cover. Refer to "Removing the top front cover".
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Chapter 8 Replacing hardware
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