I can't find anything obvious.  Diagnostics attached.

wopr-diagnostics-20191004-2157.zip

Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: HANDLING MCE MEMORY ERROR
Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: CPU 8: Machine Check Event: 0 Bank 9: 8c000051000800c1
Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: TSC 31c3e6d31eaaa 
Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: ADDR 73e0a2000 
Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: MISC 90004000400228c 
Oct  2 13:05:15 WOPR kernel: EDAC sbridge MC1: PROCESSOR 0:206d7 TIME 1570035915 SOCKET 1 APIC 20
Oct  2 13:05:15 WOPR kernel: EDAC MC1: 1 CE memory scrubbing error on CPU_SrcID#1_Ha#0_Chan#0_DIMM#0 (channel:0 slot:0 page:0x73e0a2 offset:0x0 grain:32 syndrome:0x0 -  area:DRAM err_code:0008:00c1 socket:1 ha:0 channel_mask:1 rank:0)

Memory issue

Thanks.  My motherboard isn't showing anything in the event log.  I removed some RAM previously becasue the motherboard was showing errors for it.  Is this more bad RAM?

That would be my guess