'proliant dl360p gen8' Unrecoverable System Error - An Unrecoverable System Error (NMI) has occurred

Hi all,

we have two dl360 g8 box and running 64 bit OS RHEL5 and oracle rac setup, Tonight suddenly one of node crashed 

and IML logs shows following error when server rebooted, My system is new and all firmwares and drivers are up to date.

Event: 20 Added: 12/25/2013 19:13
CRITICAL: Unrecoverable System Error - An Unrecoverable System Error (NMI) has occurred (System error code 0x0000002B, 0x00000000).

Event: 21 Added: 12/25/2013 19:14
CRITICAL: ASR - ASR Detected by System ROM.

Please let me know if you face such error and how did u fix this?

Thanks

Amber