Lenovo 90HU, Руководство по техническому обслуживанию аппаратной части

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Step 5. To reinstall the computer cover:
a. Line up the computer cover with the chassis, and then slide it back.
b. Secure the computer cover to the chassis with the screws.
Replacing the power supply assemby
Note: For this procedure, it helps to lay the computer flat.
To replace the power supply assembly:
Step 1. Remove any media 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 Locating connectors,
controls and components to locate the various connectors.
Step 4. Remove the computer cover. Refer to Removing the computer cover.
Step 5. Lay the computer on its side. Then, disconnect the power supply assembly cables from the
motherboard.
Chapter 8
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Replacing hardware
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