rx8620 rebooted

Hello,

System reported the following errors and rebooted. Does anybody have
any experince about the errors?
Your kindly help is highly appreciated.
Regards,
Alireza

Log Entry 9800: 10/15/2007 01:44:15
Alert level 2: Informational
Keyword: MC_LOG_PROC_ERR
This denotes the action of logging the processor errors in the MCA
path.
Reporting Entity: System Firmware located in cabinet 0, slot 3, cpu
0
Problem Detail: 0x0000000000000000
0x4e80021630e00012 0x0000000000000000
0x4b00021630e00013 0x010000004712c5ef

Log Entry 9799: 10/15/2007 01:44:15
Alert level 2: Informational
Keyword: MC_TIMESTAMP
MC: MC timestamp
Reporting Entity: System Firmware located in cabinet 0, slot 3, cpu
0
Implementation Dependent: 0x2007101500103946
0x568002b030e00010 0x2007101500103946
0x4b0002b030e00011 0x010000004712c5ef

Log Entry 9798: 10/15/2007 01:44:15
Alert level 2: Informational
Keyword: MC_CAUSE_PROC_INTERNAL
This denotes the fact that the cause of the MCA is not known.
Reporting Entity: System Firmware located in cabinet 0, slot 3, cpu
0
0x4b00021530e0000f 0x010000004712c5ef

Log Entry 9797: 10/15/2007 01:44:14
Alert level 2: Informational
Keyword: MC_PSP
Processor PSP
Reporting Entity: System Firmware located in cabinet 0, slot 3, cpu
0
Problem Detail: 0x08000000fff21330
0x4e8002a130e0000d 0x08000000fff21330
0x4b0002a130e0000e 0x010000004712c5ee

Log Entry 9796: 10/15/2007 01:44:14
Alert level 7: Fatal
Keyword: MC_INITIATED
Machine Check initiated
Reporting Entity: System Firmware located in cabinet 0, slot 3, cpu
0
System State Change: HPMC processing
0xf480009830e0000b 0x000000000000000b
0xeb00009830e0000c 0x010000004712c5ee

.