DigiTimes reports this morning that motherboard manufacturers are claiming not just low-end but high-end Intel chipsets have been difficult for them to obtain:

Intel's chipset shortage has extended from its entry-level PCI Express (PCIe) 915 series to the high-end 945G line, according to motherboard makers. Tight supply of the chip giant's 915 chipset has disrupted OEM shipments of high-end Pentium 4-based motherboards, as well as migration to DDR2, indicated the makers.

Intel's 945G-series chipset supports its dual-core Pentium D and Pentium 4 6-series processors for high-end applications.

(DigiTimes)