Symptoms

Precision 7xxx computers encounter power-related error messages when insufficient power is provided to the system. The docks are: WD15TB16WD19WD19SWD19TBWD19TBSWD22TB4

Cause

Precision 7xxx computers require both the dock to have a 240w AC Adapter connected plus the AC Adapter that shipped with the computer connected to the computer directly, as supplementary power.

Resolution

To resolve this power-related issue, connect the AC adapter that comes with the Precision computer along with the Thunderbolt dock.

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