VR-Zone reports Intel has just delivered their new 975X chipset and some motherboard makers like Asus and Gigabyte have already finished development of their motherboards based on this chipset. The 975X offers support for Intel's upcoming 65nm dual-core Pentium XE and Pentium D Presler processors and the single-core Cedar Mill.
The Pentium XE Presler will have a 1066MHz FSB, 2x 2MB L2 cache, VT and HT while the Pentium D Presler has a 800MHz FSB, 2x 2MB L2 cache, VT but no HT.
It looks like the current 945 and 955x won't have support for the Pentium XE Presler but will work with the Pentium D Presler.
However, an Asian site called HKEPC, got their hands on Intel's Pentium XE 955 (3.46GHz) and was able to run it on the Intel 865PE chipset based Asrock 775i65PE motherboard:
Interestingly, our friends from HKEPC managed to run a Pentium XE 955 (3.46GHz) on a 865PE based board called 775i65PE from Asrock but it is specially designed to support XE 955 as well as 1066MHz FSB. As for 915/925 and 945/955 chipsets, Intel has sort of lock them down to prevent support for the Pentium XE "Presler