One of my PCI-E connector on Apollo get burned using Balanced mode on default settings.
Any suggestions?


First that looks like a cheap low gauge PCIE splitter, second did you have two separate PCIE from wires from your PSU plugged into both plugs on the Apollo?
Looks like you only had one plugged in, which is a no-no for anything other than ECO mode.
You should always have both plugs from your PSU plugged into the Apollo regardless to be safe, thats why they are there.