Technical Information • PCZ-NVM • CPU Expansion Side Card
Specified by the VESA DisplayPort connector standard is a dedicated power pin 20 (+3.3V 0.5A). Both
the PCZ-NVM (source side) and a DP monitor (sink side) must provide power via this pin. A VESA
specified standard DisplayPort cable however must not connect the pins 20 of both cable ends, in
order to avoid a back driving conflict. Unfortunately there are cable assemblies available with pin 20
passed through, with unpredictable results on the system behaviour, e.g. for CPU sleep states.
Therefore the PCZ-NVM
is equipped with a power switch in order to protect the CPU and side card
assembly from back driving effects caused by non VESA style cables.
Sample VESA Compliant DisplayPort Cable Assemblies
2.0m Plug to Plug, w. Latches • EKF Part. #270.66.1.02.0
Manhattan
307116, 391931
Molex
68783-0007
TE (Tyco)
2040687-2, 2040638-2
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