@bsdphk what do you think it is? the connectors all have a safety ground pin that presumably has to go somewhere
@tubetime
My best idea is that it is a "neutral" intended to balance the two load-bearing circuits symmetrically around "ground" potential.
That would mean relevant but not full-load currents, which again precludes it from being also protective ground.
But I think it also has a machanical role, possibly preventing the cooling channels from collapsing during mechanical abuse.
Gregory's Server
@tubetime
My best idea is that it is a "neutral" intended to balance the two load-bearing circuits symmetrically around "ground" potential.
That would mean relevant but not full-load currents, which again precludes it from being also protective ground.
But I think it also has a machanical role, possibly preventing the cooling channels from collapsing during mechanical abuse.