3 steps are needed for this.
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5074651 (interesting warning - blacklist memory checks if you have chipkill ram in classy IBM servers and get spurious EDAC errors)
Install the right software:
Note the error message above, it's not clear how to set the EDAC_DRIVER and why the script returns "OK" if it is NOT enabling it's main purpose. Hilarious.
On the other hand, if we test on we'll see that things might in fact, work.
Verify the driver is working
Check you're getting a EDAC/ECC report
Nice to know: Linux does not do PCI checksum checking by default. Yet another reason why it's "faster" than real UNIX systems that bother to do all these error checks