To Circle Back on my question.... The ebay seller of the M200 memory modules is justinrod.
Really nice memory modules. I installed them today - my original line of thinking was the total memory at the bottom would update. I wrote Justinrod and asked how I could tell if the memory took. Pressing F1 changes the banks, if you show 3 different banks as you cycle through, both memory banks are seen. Product very good, seller helpfulness also very good.
