Tnx I had already seen the intel page, I was expecting "unofficial support".
Thing is I have a customer who has 4 Intel D101GGC mobos and wanted to get 4 Core2duo for them.
I tried an unsupported CoreDuo and it does work. But I don't have a core2duo to try and by the time I get them I won't be able to exchange the mobos if they don't work.