12. Reinstall any parts and reconnect any cables that have been removed or disconnected.
13. Reinstall the computer cover and reconnect power cords and all other external cables. See “Completing
the parts replacement” on page 43.
14. Turn on the computer and remove the disc from the optical drive.
Chapter 5
.
Updating system programs
61
Summary of Contents for ThinkCentre 7539
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