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 a OptiPlex 7040 Micro Form Factor (MFF) system. (CRUs are the parts of the system that shouldn't need an engineer to remove or replace).
Cabled redundant Power Supplies are connected to the motherboard via a Power Distribution Board (PDB), this PDB have sensors to provide the current Watts used by motherboard to managements tools like OMSA or the integrated diagnostic menu.
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