Two Itanium Blades bl860c i2 failed to start

Hi,
I have two blades that have the same problem after pressing the power button:
Here is the event log:
ILO  4          1  2900255530E10001 2020202052455355 SYS_CTL_REQ_PWR_ON
ILO  4         *3  6080253530E10002 0000000000000000 SYSVARS_MISMATCHED
                                                      12 Mar 2010 16:37:10
ILO  4          2  408021A930E10004 0000000000000000 LOCAL_BLADE_POWERED_ON
                                                      12 Mar 2010 16:37:11
ILO  4          2  548022E730E10006 00000000000F000C SYSTEM_SOFT_RESET
                                                      12 Mar 2010 16:37:12
ILO             2  204B9A6DB8020008 FFFF006FFA220400 ACPI_ON
                                                      12 Mar 2010 16:37:12
SFW  4,1,0,0    2  548C006341E10009 0000000000000000 BOOT_START
                                                      12 Mar 2010 16:37:16
SFW  4,1,0,0    0  040C21EA41E1000B FFFFFF04FF00FF11 BOOT_CPU_PREP_SOCKET_CFG
SFW  4,1,0,0    0  030C24DF41E1000C 000000000000000D IO_IOH_CRITICAL_CSRS_SAVED
ILO  4         *5  B64B9A6DC002000D FFFF020756010400 TEMP_CRITICAL
                                                      12 Mar 2010 16:37:20
ILO  4         *3  B64B9A6DC002000E FFFF010758010400 TEMP_WARNING
                                                      12 Mar 2010 16:37:20
ILO  4         *5  B64B9A6DC002000F FFFF010668020400 VOLTAGE_FAULT
                                                      12 Mar 2010 16:37:20
SFW  4,1,0,0    0  030C21A841E10010 0000000000003406 IO_IOH_PCIE_STATE_SAVED
SFW  4,1,0,0    0  000C001D41E10011 0000000000000000 BOOT_CPU_CONFIG
SFW  4,1,0,0    0  030C21DA41E10012 0000000800020008 BOOT_CPU_LOGICAL_INFO
SFW  4,1,0,1    0  030C005D43E10013 0000000000000009 BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,2,1    0  030C005D4BE10014 000000000000000D BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,3,1    0  030C005D4FE10015 000000000000000F BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,2,0    0  030C005D49E10016 000000000000000C BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,1,1    0  030C005D47E10017 000000000000000B BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,3,0    0  030C005D4DE10018 000000000000000E BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,1,0    0  030C005D45E10019 000000000000000A BOOT_SLAVE_RENDEZ_HANDLER_START
SFW  4,1,0,0    0  030C252541E1001A 0000000000000162 BOOT_ROM_REVISION
SFW  4,1,0,0    0  030C252641E1001B 2015091100005600 BOOT_ROM_TIMESTAMP
SFW  4,1,0,0    0  0A0C202841E1001C 0000000103020000 EVENT_STATUS_CODE_PROGRESS
SFW  4,1,0,0    0  030C232441E1001D 006D696550646350 BOOT_LOAD_FW_MODULE
SFW  4,1,0,0    0  030C232541E1001E 00000000FF2C8280 BOOT_LOAD_FW_ADDR
SFW  4,1,0,0    0  030C232441E1001F 0074696E49697343 BOOT_LOAD_FW_MODULE
SFW  4,1,0,0    0  030C232541E10020 00000000FF2E74F0 BOOT_LOAD_FW_ADDR
SFW  4,1,0,0    0  000C1F6D41E10021 0000000000000000 QPI_INIT_START
SFW  4,1,0,0    0  000C1FD741E10022 0000000000000000 QPI_RETRIEVE_DEFAULT_DATA
SFW  4,1,0,0    0  000C1F6E41E10023 0000000000000000 QPI_DATA_SETUP_START
SFW  4,1,0,0    0  030C1F7741E10024 0000000000000007 QPI_CONTROL_BITMAP
SFW  4,1,0,0    0  030C1F7641E10025 0001050000010200 QPI_MISC_PARMS
SFW  4,1,0,0    0  000C1FD941E10026 0000000000000000 QPI_UPDATE_DEFAULT_DATA
SFW  4,1,0,0    0  000C1F7141E10027 0000000000000000 QPI_DATA_SETUP_DONE
SFW  4,1,0,0    0  000C1F7241E10028 0000000000000000 QPI_LOCAL_INIT_START
SFW  4,1,0,0    0  030C1F7841E10029 0000000000000210 QPI_LOCAL_ENABLED_PORTS
SFW  4,1,0,0    0  040C1F7A41E1002A FFFFFF04FF010314 QPI_LOCAL_PORT_OP_SPEED
SFW  4,1,0,0    0  040C1F7941E1002B FFFFFF04FF010114 QPI_LOCAL_PORT_INIT
SFW  4,1,0,0    0  030C1FDB41E1002C 0000010000000001 QPI_SET_CPU_MONO_ROUTING
SFW  4,1,0,0    0  000C1F7341E1002D 0000000000000000 QPI_LOCAL_INIT_DONE
SFW  4,1,0,0    0  000C1F7441E1002E 0000000000000000 QPI_GLOBAL_INIT_START
SFW  4,1,0,0    0  000C1F7B41E1002F 0000000000000000 QPI_SBSP_INIT_START
ILO  4         *5  BA80252830E10030 FFFFFF04FF00FF11 CPU_POWER_POD_FAILURE
                                                      12 Mar 2010 16:37:21
SFW  4,1,0,0    0  030C1FDA41E10032 0000010000030002 QPI_FOUND_NEIGHBOR
ILO  4         *7  B64B9A6DC3020033 FFFF030755010400 TEMP_NON_RECOVERABLE
                                                      12 Mar 2010 16:37:23
ILO  4          1  2900255E30E10034 202048544C414548 SYS_CTL_REQ_PWR_OFF
ILO  4          2  408021AA30E10035 0000000000000000 LOCAL_BLADE_POWERED_OFF
                                                      12 Mar 2010 16:37:30
ILO             2  204B9A6DCC020037 FFFF056FFA220400 ACPI_SOFT_OFF
                                                      12 Mar 2010 16:37:32
I have no explanation why the "VOLTAGE_FAULT" and the "CPU_POWER_POD_FAILURE" happens.
Another bl860c boots without problems in the same C7000 slot.
Are there any ideas how to repair these blades?
I have already exchanged the CPUs without success.
Best regards
Eberhard