9 Replies Latest reply on Sep 19, 2010 12:30 AM by dhowells

    S5520SC board does not complete POSTing; strange diag LED code




      I've just assembled a system based around an S5520SC motherboard and a pair of E5620 Xeons.  The system doesn't complete the POST procedure when the power button is pressed.  It stops with the diagnostic LEDs showing 0x08 - an undocumented code.


      The fans start whirring when the power button is pressed.


      If I then hold down the power button to shut down the system, the board will beep in the 1-5-4-2 pattern a few seconds after all the fans have stopped.


      I've tried removing all the RAM, but that makes no difference.  I don't get the three beep sequence to tell me it's not there.