Thanks crusher. Intel announced specification change for the yet unannounced chipsets E7320, E7520, E7525. The spec modification is pretty strange, as the core-logic sets code-named Tumwater and Lindenhurst are not officially unveiled yet.
The yet unannounced E7520, E7320 and E7525 MCH chips have undergone certain changes that are reflected in C2 stepping, the version of the chips that is more mature compared to the C1 presumably available now at hands of mainboard producers. The C2 revision is pin-to-pin compatible with the C1 and does not require any regression testing or mainboard re-design, according to the information spread among Intel"s partners on Friday.