Great.
Just wondering why Blackmagic not mentioning this issue on their site.
They even write in Decklink minimum system requirements Windows Vista recommended 4GB ram.
I did not find any clue on this in the support section.
or maybe a red-white banner..
“FOLKS DON’T BUY THIS CARD IF YOU USE MORE THAN 2GB RAM”
Now I have two options throw away 2x1gb Kingston ECC RAMS.. or sell somehow Decklink Extreme PCI and buy PCIe version. 🙁
Anyway…thanks for the help everyone. 🙂