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HP DL 380 G4 PSU 2 make OS Hangs

 
Effendi_1
Occasional Visitor

HP DL 380 G4 PSU 2 make OS Hangs

When the PSU 2 have lost power, the operating system hangs, i need to cold reboot it. meanwhile the PSU 1 still have power source, and the server still have power, but somehow the OS hang up.

meanwhile when i unplug the PSU 1 cable, and the server run on PSU2, the OS running fine.

how to set the PSU to be redundancy?