Hardware Error Check events Logged

[uiuc_josh]

All,

  I'm getting the following (flagged by FCP) in my syslog:

May  6 22:37:21 unServer kernel: mce: [Hardware Error]: Machine check events logged
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 9: 8c000041000800c0
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: TSC 397c3a0867fb60 
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: ADDR 1d0543000 
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: MISC 90000004000428c 
May  6 22:37:21 unServer kernel: EDAC sbridge MC0: PROCESSOR 0:50662 TIME 1525646241 SOCKET 0 APIC 0
May  6 22:37:21 unServer kernel: EDAC MC0: 1 CE memory scrubbing error on CPU_SrcID#0_Ha#0_Chan#0_DIMM#0 (channel:0 slot:0 page:0x1d0543 offset:0x0 grain:32 syndrome:0x0 -  area:DRAM err_code:0008:00c0 socket:0 ha:0 channel_mask:1 rank:0)

They are occuring about every 1-3 days for about the last month. Is this a bad ECC DIMM? I haven't rebooted since this started, so I'll start there. Any ideas how to read this error?

 

I'm running a XeonD-1520 setup on an AsRock D1520D4I on unRAID 6.4.1. It's been in service about 20 months. 

Thanks!

Josh

[JorgeB]

Check the board's system event log, there might be more info there.

[uiuc_josh]

I'm not seeing any corresponding events logged there. I'm reconfiguring the log rotation in the IPMI to make sure I'm not missing anything from a full log file. After rebooting the server, I've had three recurrences of the error in two weeks. Not sure what I'm dealing with here. 

 

Josh