Intel almost never makes mistakes on their official ARK website ( I have never seen one). It's very reliable website and if it states no support on this model it means it doesn't support it.
well there was a member here that said intel changed the site to reflect a change
he had saved a previous version of the ark and pushed for a rma of a cpu cause he bought it for a characteristic which the cpu did not had and the site said it had
i have heard peopel complainign about the e3 series one cpu not sazing if it supports ecc ram
well the right for tha companies to change the specifications without any notice is bull
when i do my research i want to buy something with some features i do not want to play lotery on what i will get
also there is the issue of i3 support ecc with server chipsets
at hardforum one claimed he test and they support
go figure
THANK YOU INTEL