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ok do all the other modules work perfectly in the same case at the same time? are you sure the power cable i in correctly - red stripe corresponds with marker on module pcb and bus board? if keyed headers - is the cable correct? red stripe is left when key is facing you (lines up with a tiny, almost invisible triangle) on both ends
-- JimHowell1970

thank you Jim for your attention ..yes .. all these procedures I've already checked! and i even disassembled the entire rack, I tried to turn it on only, and it has the same condition (all lights are on, and the front panel is off).