MCA: error

[wolfie1_0]

I am hoping this is the right place to be putting this, I've been using freenas for a few years now, not for anything seriously data sensitive, just movies and TV shows..
My system is as follows:

• Asus M3A78-EM
• AMD Athlon(tm) 7750 Dual-Core Processor
• 2x 500w redundant hot-swappable PSUs (unsure of brand came with used 4u 25bay case)
• 10x500GB SATA HDD
• IBM M1015 Crossflashed to IT mode (version 15 I think, I know it needs an upgrade)

Until recently I've been running 8GB NON-ECC DDR2-800 and I recently got given 8GB of DDR2- 800 ECC

Upon installing the ECC memory I enabled it in the bios and ran memtest86+ for Aprox 2Hrs with 0 errors

A few hours after starting it up i started seeing these errors in the logs

Nov 8 18:49:45 freenas MCA: Bank 4, Status 0xd468c0008f080813
Nov 8 18:49:45 freenas MCA: Global Cap 0x0000000000000106, Status 0x0000000000000000
Nov 8 18:49:45 freenas MCA: Vendor "AuthenticAMD", ID 0x100f23, APIC ID 0
Nov 8 18:49:45 freenas MCA: CPU 0 COR OVER BUSLG Source RD Memory
Nov 8 18:49:45 freenas MCA: Address 0x1868d6080

it happens sometimes every few hours, sometimes they are more than 12 hours apart

Nov 8 00:47:37 freenas MCA: Bank 4, Status 0x9468c0008f080813
Nov 8 00:47:37 freenas MCA: Global Cap 0x0000000000000106, Status 0x0000000000000000
Nov 8 00:47:37 freenas MCA: Vendor "AuthenticAMD", ID 0x100f23, APIC ID 0
Nov 8 00:47:37 freenas MCA: CPU 0 COR BUSLG Source RD Memory
Nov 8 00:47:37 freenas MCA: Address 0x1fc3cf820

The server never crashes when it happens I haven't seen any other issues, it appears to happen at about the same time every hour

any variation i assume would be caused by the motherboard's inability to keep accurate time

Nov 8 01:02:46 freenas ntpd[2580]: time reset +1.938750 s
Nov 8 01:18:23 freenas ntpd[2580]: time reset +1.825336 s
Nov 8 01:35:45 freenas ntpd[2580]: time reset +2.059543 s
Nov 8 01:51:42 freenas ntpd[2580]: time reset +1.930660 s
Nov 8 02:07:46 freenas ntpd[2580]: time reset +1.922914 s
Nov 8 02:23:55 freenas ntpd[2580]: time reset +1.935406 s
Nov 8 02:39:59 freenas ntpd[2580]: time reset +1.994139 s
Nov 8 02:55:55 freenas ntpd[2580]: time reset +1.875127 s
Nov 8 03:11:47 freenas ntpd[2580]: time reset +1.951172 s
Nov 8 03:28:02 freenas ntpd[2580]: time reset +1.945948 s

i was just wondering if anyone could decipher the error, I'm not looking for any critiques of the system, it does what I need it to do for now and has probably cost maybe $300 total to me

thanks in advance for any insight

 

[JDCynical]

A quick google for "CPU 0 COR OVER BUSLG Source RD Memory" returns some FreeBSD mailing list and forum posts that seem to indicate that this is a memory error that was corrected. I'd take a look in that direction.