IBM prepares its X4 chipset for up to 32 processor servers
IBM is set to introduce its X4 chipset for Intel’s upcoming Tigerton quad-core Xeon MP processors. Intel’s upcoming Tigerton features a new point-to-point connection between the processors and chipset. The Intel Caneland platform-based demonstration systems had four Tigerton processors installed.
IBM’s upcoming X4 chipset replaces the current X3 chipset and is scalable up to 32 processors across eight system boards for 128 cores in a single server system. Memory support is plentiful with up to 16 memory slots per system board. Memory modules in 1GB, 2GB and 4GB sizes are supported with the X4 chipset, providing a maximum of 512GB of system memory.
The X4 chipset will not support InfiniBand for supercomputing cluster use, however, expect dual Gigabit Ethernet ports on X4 systems. Also, expect the X4 to support 10 Gigabit Ethernet as an option.
Beyond Tigerton, Intel expects to converge Itanium and Xeon products towards the common CSI system bus. CSI replaces the current front-side bus and upcoming point-to-point bus protocols for greater efficiency.
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