Sun Sparc M5000: domain not boot

Dear all,

I Urgently need your help to investigate and find solution to my issue.

I have one M5000 which lost power and after a reboot, the domain not boot.

I checked on xscf and bellow my finding:

1- When trying to boot the domain I get this error:

Poweron canceled due to missing component.

2- I checked the hardware status:

XSCF> showboards -a

XSB  DID(LSB) Assignment  Pwr  Conn Conf Test    Fault

---- -------- ----------- ---- ---- ---- ------- --------

00-0 00(00)   Assigned    n    n    n    Unknown Faulted

01-0 SP       Unavailable n    n    n    Unmount Normal

XSCF> showstatus

*   MBU_B Status:Degraded;