Completing the parts replacement - ThinkCentre M90z
After completing the installation or replacement for all parts, you need to reinstall the computer cover and reconnect cables.
To reinstall the computer cover and reconnect cables, do the following:
Make sure that all components have been reassembled correctly and that no tools or loose screws are left inside your computer. See Component locations for the locations of various components in your computer.
Make sure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear of the hinges and sides of the computer chassis to avoid interference with reinstalling the computer cover.