Around the time that the

Pentium III The Pentium III (marketed as Intel Pentium III Processor, informally PIII or P3) brand refers to Intel's 32-bit x86 desktop and mobile CPUs based on the sixth-generation P6 microarchitecture introduced on February 28, 1999. The brand's initial p ...

processor was introduced, Intel's

Xeon Xeon ( ) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, server, and embedded system markets. It was introduced in June 1998. Xeon processors are based on the same arc ...

line diverged from its line of desktop processors, which at the time was using the Pentium branding. The divergence was implemented by using different sockets; since then, the sockets for Xeon chips have tended to remain constant across several generations of implementation. The chipsets contain a 'memory controller hub' and an 'I/O controller hub', which tend to be called 'north bridge' and 'south bridge' respectively. The memory controller hub connects to the processors, memory, high-speed I/O such as PCI Express, and to the I/O controller hub by a proprietary link. The I/O controller hub, on the other hand, connects to lower-speed I/O, such as SATA, PCI, USB, and Ethernet.

P6-based Xeon chipsets

Dual processor P6-based Xeon chipsets

Intel's initial preferred chipset for Pentium III Xeon was the 840.

Four processor P6-based Xeon chipsets

The Pentium III Xeon bus protocol allowed four processors on the same bus, so the 440GX AGPset could be used in four-CPU systems; the limit of 2GB of main memory remained. These support

Slot 2 Slot 2 refers to the physical and electrical specification for the 330-lead Single Edge Contact Cartridge (or edge-connector) used by Intel's Pentium II Xeon and Pentium III Xeon. When first introduced, Slot 1 Pentium IIs were intended to rep ...

. There was also the 450NX PCIset, which consisted of several chips: a single 82451NX Memory and IO Bridge Controller roughly analogous to the North Bridge, up to two 82454NX PCI Expander Bridges which converted the protocol used by 451NX to two 32-bit PCI33 or one 64-bit PCI33 bus, along with up to two memory cards each equipped with one 82452NX RAS/CAS Generator chip and two 82453NX Data Path Multiplexer chips. It supported PIIX3 and PIIX4E south bridges, and EDO DRAM.

Eight processor P6-based Xeon chipset

In August 1999 Intel began shipping the Profusion PCIset. The chipset was based on technology developed by the

Corollary In mathematics and logic, a corollary ( , ) is a theorem of less importance which can be readily deduced from a previous, more notable statement. A corollary could, for instance, be a proposition which is incidentally proved while proving another ...

company, which Intel acquired. It supported up to 8 Pentium III Xeon processors on two busses and maintained cache coherency between them. Profusion supported up to 32 GB of memory. It saw some limited competition from the NEC Aqua II chipset. Another minor player in the eight-way space was Axil Computer's NX801, which was used in an 8-way (two buses) Pentium Pro design, commercialized by

Data General Data General Corporation was one of the first minicomputer firms of the late 1960s. Three of the four founders were former employees of Digital Equipment Corporation (DEC). Their first product, 1969's Data General Nova, was a 16-bit minicomputer ...

as their AV-8600 computer.

NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...
-based Xeon chipsets

Dual processor
NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...
-based Xeon chipsets

E7500 corresponded to the first Northwood-based Pentium4 Xeons, E7501 is essentially identical but supports faster FSB and memory. The E7320, E7520 and E7525 chipsets correspond to Prescott-based Pentium4 Xeons, and differ mainly in their PCI Express support. These support

Socket 604 Socket 604 is a 604-pin microprocessor socket designed to interface an Intel's Xeon processor to the rest of the computer. It provides both an electrical interface as well as physical support. This socket is designed to support a heatsink. Launch ...

. The Intel 875P chipset was used in some two-socket motherboards for Xeons. Note that the 82870P2 chips of E7500, E7501 and E7505 were initially designed for the Intel 870 chipset for Itanium 2, and that the summary page of the E7320 datasheet incorrectly claims three PCI Express interfaces.

Quad processor
NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...
-based Xeon chipsets

As Intel didn't have a 4P-capable chipset for Netburst-based Xeons until 2005, for three years ServerWorks GC-HE served as the de-facto standard MP chipset, even being used in Intel's own motherboards (SPSH4 and SRSH4).

Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...
-based Xeon chipsets

Single processor
Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...
-based Xeon chipsets

3000 and 3010 are an update on the E7230 chipset, codenamed Mukilteo, which has specifications very similar to the 3000 chipset. E7230 was preceded by E7221, which was Intel's first strictly single-socket server chipset.

Dual processor
Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...
-based Xeon chipsets

These chipsets use a '

dual independent bus A system bus is a single Bus (computing), computer bus that connects the major components of a computer system, combining the functions of a Memory bus, data bus to carry information, an address bus to determine where it should be sent or read fro ...

' design, in which each socket has its own connection to the chipset. These use the

LGA 771 LGA 771, also known as ''Socket J'', is a CPU interface introduced by Intel in 2006. It is used in Intel Core microarchitecture and NetBurst microarchitecture(Dempsey) based DP-capable server processors, the Dual-Core Xeon is codenamed Dempsey ...

socket. The datasheets omit the 667 MT/s FSB support, so 5400 may support it too.

Four processor
Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...
-based Xeon chipsets

This chipset uses four independent buses, and is used by the Tigerton and Dunnington processors.

Nehalem-based Xeon chipsets

Single processor Nehalem-based Xeon chipsets

The 3450 chipset is also compatible with an

Intel Core i5 The following is a list of Intel Core i5 brand microprocessors. Introduced in 2009, the Core i5 line of microprocessors are intended to be used by mainstream users. Desktop processors Nehalem microarchitecture (1st generation) "Lynnf ...

Intel Core i3 The following is a list of Intel Core i3 brand microprocessors. These processors are designed with cheap price points, while still retaining the power of the Intel Core line. As such they (along with Intel's i5 series) are often found in laptop ...

processor.

Dual processor Nehalem-based Xeon chipsets

The Nehalem-based Xeons for dual-socket systems, initially launched as the Xeon 55xx series, feature a very different system structure: the memory controllers are on the CPU, and the CPUs can communicate with one another as peers without going via the chipset. This means that the 5500 and 5520 (initial codename Tylersburg-EP) chipsets are essentially

QPI The Intel QuickPath Interconnect (QPI) is a point-to-point processor interconnect developed by Intel which replaced the front-side bus (FSB) in Xeon, Itanium, and certain desktop platforms starting in 2008. It increased the scalability and availab ...

PCI Express PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common ...

interfaces; the 5520 is more intended for graphical workstations and the 5500 for servers that do not need vast amounts of PCI Express connectivity As well as the 5530

Four processor Nehalem-based Xeon chipsets

Sandy Bridge Sandy Bridge is the codename for Intel's 32 nm microarchitecture used in the second generation of the Intel Core processors (Core i7, i5, i3). The Sandy Bridge microarchitecture is the successor to Nehalem and Westmere microarchitecture ...
-based Xeon chipsets

Single processor
Sandy Bridge Sandy Bridge is the codename for Intel's 32 nm microarchitecture used in the second generation of the Intel Core processors (Core i7, i5, i3). The Sandy Bridge microarchitecture is the successor to Nehalem and Westmere microarchitecture ...
-based Xeon chipsets

The Intel C200 series chipsets that support the Intel Xeon E3-1200 CPU family.

Dual processor
Sandy Bridge Sandy Bridge is the codename for Intel's 32 nm microarchitecture used in the second generation of the Intel Core processors (Core i7, i5, i3). The Sandy Bridge microarchitecture is the successor to Nehalem and Westmere microarchitecture ...
-based Xeon chipsets

The Intel C600 series chipsets support the Intel Xeon E5-2600 CPU family. Common to al
C600 variants
are the following features: * DMI interface to CPU at 20 GT/s * 8 PCIe 2.0 (5 GT/s) lanes, configurable by the board manufacturer as 8×1, 4×2, 2×4, or 1×8. * 2 SATA ports supporting 6/3/1.5

gigabaud In telecommunication and electronics, baud (; symbol: Bd) is a common unit of measurement of symbol rate, which is one of the components that determine the speed of communication over a data channel. It is the unit for symbol rate or modulation ...

operation * 4 SATA ports supporting 3/1.5 gigabaud operation * one PCI 2.3 32-bit 33 MHz bus interface * 14 USB 2.0 ports * single-port Gigabit Ethernet controller * Active Management Technology 7.0 and Anti-Theft Technology * HD Audio controller Some chipset variants have additional mass storage interfaces:

Dual processor Gladden/Sandy Bridge-EP/EN-based Xeon chipsets

The Intel Communications 8900 series chipsets that support the Gladden Intel Xeon E3-11xx or Sandy Bridge-EP/EN Intel Xeon E5-2xxx CPU families.

Ivy Bridge-based Xeon chipsets

Single processor Ivy Bridge-based Xeon chipsets

The Intel C200 series chipsets that support the Intel Xeon E3-1200v2 CPU family.

Haswell-based Xeon chipsets

Single processor Haswell-based Xeon chipsets

The Intel C220 series chipsets support the Intel Xeon E3-1200v3 CPU family.

Multi processor Haswell-based Xeon chipsets

Skylake-based Xeon chipsets

Single processor Skylake-based Xeon chipsets

The Intel C230 series chipsets support the Intel Xeon E3-1200v5 CPU family. Both, the C232 and the C236 support the

LGA 1151 LGA 1151, also known as Socket H4, zero insertion force flip-chip land grid array (LGA) socket for Intel desktop processors which comes in two distinct versions: the first revision which supports both Intel's Skylake and Kaby Lake CPUs, an ...

socket.

Multi processor Skylake-based Xeon chipsets

Kaby Lake Kaby Lake is Intel's codename for its seventh generation Core microprocessor family announced on August 30, 2016. Like the preceding Skylake, Kaby Lake is produced using a 14 nanometer manufacturing process technology. Breaking with Intel's ...
-based Xeon chipsets

Single processor
Kaby Lake Kaby Lake is Intel's codename for its seventh generation Core microprocessor family announced on August 30, 2016. Like the preceding Skylake, Kaby Lake is produced using a 14 nanometer manufacturing process technology. Breaking with Intel's ...
-based Xeon chipsets

Coffee Lake Coffee Lake is Intel's codename for its eighth generation Core microprocessor family, announced on September 25, 2017. It is manufactured using Intel's second 14 nm process node refinement. Desktop Coffee Lake processors introduced i5 and i ...
-based Xeon chipsets

The Intel C246 series chipsets support the Intel Xeon E-2100 series of CPUs.

Cascade Lake-based Xeon chipsets

Comet Lake Comet Lake is Intel's codename for its 10th generation Core microprocessors. They are manufactured using Intel's third 14 nm Skylake process refinement, succeeding the Whiskey Lake U-series mobile processor and Coffee Lake desktop proces ...
-based Xeon chipsets

References

dataset for the 450NX chipset

datasheet for the E7500 MCH

is the datasheet for the E7501 MCH

datasheet for the 5000X MCH

datasheet for the 5000P, 5000V and 5000Z MCH

datasheet for the 5400 MCH

datasheet for the 5500 and 5520 chipsets
{{DEFAULTSORT:Intel Xeon Chipsets

P6-based Xeon chipsets

Dual processor P6-based Xeon chipsets

Four processor P6-based Xeon chipsets

Eight processor P6-based Xeon chipset

NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...-based Xeon chipsets

Dual processor NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...-based Xeon chipsets

Quad processor NetBurst The NetBurst microarchitecture, called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4 ...-based Xeon chipsets

Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...-based Xeon chipsets

Single processor Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...-based Xeon chipsets

Dual processor Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...-based Xeon chipsets

Four processor Core Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central ...-based Xeon chipsets