Question Phanteks P400 Tempered glass front USB 3.1 not work, one works the other is dead.

Hans Gruber

Platinum Member
Dec 23, 2006
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This is a new old case that sat in storage for a couple of years. One of the front USB 3.1 ports works (back) the front port doesn't work. Both are plugged into the motherboard through the huge plugin from the case to the motherboard.

Any ideas as to what may be causing the problem? I unplugged the USB 3.1 motherboard plug and saw no bent or broken pins. The plugin was correctly inserted.
 

Stuka87

Diamond Member
Dec 10, 2010
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I would switch the ports that the front and rear and plugged into. See if the front start works and the rear stops working. Should help narrow down if its the case header/wiring that is bad, or if its the mobo header.
 

Hans Gruber

Platinum Member
Dec 23, 2006
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Both USB 3.1 ports are connected to the same cable that connects to the motherboard. I cannot change the connection around. Which makes me wonder if I have a bad USB 3.1 port because one works using the same connection.