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The 20th pin is NOT wired on Dell DisplayPort cables

Summary: Dell DisplayPort cables 20th pin is not wired.

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Symptoms

This article covers Dell DisplayPort Cables 20th pin not being wired.

Video Card failures due to DisplayPort cable wiring.

Graphic card failures due to 3.3-volt DC power returning to the graphics adapter through pin 20 of the DisplayPort cable.

Cause

DC power returning to the graphics adapter through pin 20

Resolution

Dell engineering and development teams eliminated this issue in Dell DisplayPort cables by removing the 20th wire in the cable.

The 20th pin connection remains in the DisplayPort cable connector. This pin is not internally connected inside the cable eliminating this power return issue in Dell DisplayPort cables.

Affected Products

Dell Dock WD15, Dell Dual Charge Dock HD22Q, Dell Dock WD19, Dell Performance Dock - WD19DC, Dell Performance Dock – WD19DCS, Dell Dock – WD19S, Dell Thunderbolt Dock - WD19TB, Dell Thunderbolt Dock – WD19TBS, Dell Thunderbolt Dock – WD22TB4