Hi all,

 

      Occasionally getting a heat alarm caused it seems when running  a windows 10 vm with 4 cores and 15 Gigs ram.  Only appears to happen when I start kodi, or the native windows Film & TV app, which means it seems when I put some load on the system. Everything keeps working ok. Currently system specs are:

 

Supermicro - X10SAE

Intel Xeon E3-1246 V3

24 Gig Ram

Unraid 6.2

GenForce GT 610 // Will be upgrading to 1060/70!!

 

Log File

 

Oct 16 11:48:16 Server_Media kernel: CPU5: Core temperature above threshold, cpu clock throttled (total events = 105857)

Oct 16 11:48:16 Server_Media kernel: CPU1: Core temperature above threshold, cpu clock throttled (total events = 105857)

Oct 16 11:48:16 Server_Media kernel: CPU6: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: CPU2: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: CPU0: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: CPU4: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: CPU1: Package temperature above threshold, cpu clock throttled (total events = 118713)

Oct 16 11:48:16 Server_Media kernel: CPU3: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: CPU7: Package temperature above threshold, cpu clock throttled (total events = 118717)

Oct 16 11:48:16 Server_Media kernel: mce_notify_irq: 1 callbacks suppressed

 

Oct 16 11:48:16 Server_Media kernel: mce: [Hardware Error]: Machine check events logged

 

Oct 16 11:48:16 Server_Media kernel: CPU1: Core temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU6: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU3: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU7: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU4: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU0: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU2: Package temperature/speed normal

Oct 16 11:48:16 Server_Media kernel: CPU1: Package temperature/speed normal

 

Oct 16 11:48:16 Server_Media kernel: mce: [Hardware Error]: Machine check events logged

 

Oct 16 11:48:16 Server_Media kernel: CPU5: Core temperature/speed normal

First clear suspect would be the thermal paste, is it applied correctly.  Naturally, you'll check whether the CPU fan has quit.

 

There's a utility (available in the NerdTools) called mcelog, which can provide more detail about machine check events.  But I think the lines above are telling you everything you need to know.  A CPU that is overheating on heavier loads is not being cooled correctly.

Sorry for the slow response, long work week. Thanks for the reply Robj, your "naturally you'll check weather the cpu fan has quit" comment proved correct. Naturally I had not checked that. Very relieved I had not cooked a 300 euro cpu!!