Looks like one of my RAM module is bad but which one?

[ssen]

Here's a netdump log that was sent to a centralize server.

--
CPU 1: Machine Check Exception: 4 Bank 0: b600002012000800
Uhhuh. NMI received. Dazed and confused, but trying to continue
You probably have a hardware problem with your RAM chips
TSC c8fa3dfcbed69 ADDR 2e00000040

CPU 0: Machine Check Exception: 4 Bank 0: b600002012000800
TSC c8fa3dfcbed85 ADDR 2e00000040

CPU 2: Machine Check Exception: 5 Bank 5: b200000084200e0f
RIP !INEXACT! 10: {mwait_idle+0x56/0x7c}
TSC c8fa3dfcbf477

CPU 1: Machine Check Exception: 4 Bank 5: b200001040100e0f
TSC c8fa3dfcbf8d0

CPU 0: Machine Check Exception: 4 Bank 5: b200001044100e0f
TSC c8fa3dfcbf9a2

CPU 3: Machine Check Exception: 5 Bank 5: b200000080200e0f
RIP !INEXACT! 10: {__do_softirq+0x4d/0xd0}
TSC c8fa3dfcc6c34
Kernel panic - not syncing: Machine check
----------- [cut here ] --------- [please bite here ] ---------

[JKytsi]

Do You have HP management agents and system management homepage installed ?

If not, check ILO IP webpage and there the IML log.

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