AMD64 (Opteron, Athlon64)

modulename: amd64_edac_mod.ko

configname: CONFIG_EDAC_AMD64

Linux Kernel Configuration
└─>Device Drivers
└─>EDAC (Error Detection And Correction) reporting
└─>AMD64 (Opteron, Athlon64)
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
Support for error detection and correction of DRAM ECC errors on
the AMD64 families (>= K8) of memory controllers.

source code:
drivers/edac/