Gregory's ServerI doubt the center is the safety ground, it's clearly not green/yellow (one of the tiny ones are) and all it has to do is deliver potential but no current. The slightest current in that wire, and everything trips off instantly.
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2 comments
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. |
@bsdphk what do you think it is? the connectors all have a safety ground pin that presumably has to go somewhere