Well ,,, I be damned ... I never looked at the versions.
All I know is I lost 200mb in bandwidth.
There are posts at NforcersHq saying the Ehernet is the culprit.
(which I replaced also)
So, I guess the MemCtrlr may not have been the issue.
So,,, I guess theres no point in the switch (on paper anyway).
I'm just telling you what I did ... exactly.