Everything is running at stock speeds and voltages.
I am running Linux (Ubuntu) and have been noticing a few hard lockups over the past week or so. I got around to checking /var/log/syslog tonight and see that there are several "Machine Check Exception" entries. I installed mcelog (a linux program to decipher these errors), but I still don't really know what is at fault (CPU or memory). Here is one of the errors:
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 1 0 data cache
TIME 1297044291 Sun Feb 6 20:04:51 2011
Data cache ECC error (syndrome 0)
bit46 = corrected ecc error
bit62 = error overflow (multiple errors)
memory/cache error 'data read mem transaction, data transaction, level 2'
STATUS d4004000f1000136 MCGSTATUS 0
MCGCAP 106 APICID 1 SOCKETID 0
CPUID Vendor AMD Family 16 Model 4
As you can see, it clearly says it is a hardware error. It also seems to be related to the CPU cache. What does this mean? Is it definitely a CPU error or could it be the motherboard or RAM?