Sudden reboot - Uncorrectable Machine Check Exception

[Server-Support]

Hi People,

My HP BL 465c G7 blade servers which was running for more than 1.5 years has just rebooted today during the business hours.

The server ROM is on A19 12/08/2012 but according to http://h20565.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c03250482 The system ROM dated 12.31.2011 corrects this issue which is older ?

Here's the IML logs:

Uncorrectable Machine Check Exception (Board 0, Processor 1, APIC ID 0x00000010, Bank 0x00000004, Status 0xF2000000'00070F0F, Address 0x00000000'00000000, Misc 0x00000000'00000000)
Uncorrectable Chipset Error (Error status 1 0x0018C154, Error status 2 0x00244000)
Uncorrectable Chipset Error (Error status 1 0x0018C160, Error status 2 0x00002040)
Uncorrectable Chipset Error (Error status 1 0x0018C16C, Error status 2 0x20000080)
Uncorrectable Chipset Error (Error status 1 0x0018C170, Error status 2 0x040406FF)
Uncorrectable Chipset Error (Error status 1 0x0018C174, Error status 2 0x00000003)
Uncorrectable Chipset Error (Error status 1 0x0018C178, Error status 2 0x9452EA00)

Can anyone here please share some thought and the solution ?