It looks like the Intel P965 chipset may get support for the quad-core Kentsfield processors:
Kentsfield is Intel’s first quad-core desktop processor for extreme users in which Intel pushed to appear no after than this year. In the original plan, 975X chipset is the only one supporting the new processors. But two weeks ago, manufacturers have received surprising news that Intel had changed its mind to give P965 a new pose.
However, the road to make P965 to support quad-core Kentsfield Processors is not that easy. Besides VRM (Voltage Regulator Module) 11.0, it also requires a set of GTLREF Voltage Dividers containing 124 Ohm Pull Up Resistor and a set of 210 Ohm Pull Down Resistor with 1 uF capacitor, which are used to connect pin G10 and F2 of the processor. As some of the P965 products are designed not following these rules, which is not supposed previously, it’s not all P965 products could give support to quad-core Kentsfield Processors..