This article provides information on "Why the Venue 8 Pro screen dims automatically when a Targus SafePort Rugged Mac Pro case or other custom case is installed blocking the ambient light sensor (ALS)".
These guides will take you step by step through the safe removal of what are considered to be the Customer Replaceable Unit (CRU) parts of the Various OptiPlex 760 systems. CRUs are the parts of the system that shouldn't need an engineer to remove or replace.
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