List of Intel chipsets#5/6/7/8/9 Series chipsets

An earlier chipset support for Intel 8085 microprocessor can be found at MCS-85 family section.

Early IBM XT-compatible mainboards did not yet have a chipset, but relied instead on a collection of discrete TTL chips by Intel:{{cite book|title=PC Based Instrumentation and Control|url=https://archive.org/details/pcbasedinstrumen00bami_789|url-access=limited|author=Michael H. Tooley |page=[https://archive.org/details/pcbasedinstrumen00bami_789/page/n48 32] |publisher=Elsevier |date=2005 |isbn=9780750647168}}

• the 8284 clock generator
• the 8288 bus controller
• the 8254 programmable interval timer
• the 8255 parallel I/O interface
• the 8259 programmable interrupt controller
• the 8237 DMA controller

To integrate the functions needed on a mainboard into a smaller number of ICs, Intel licensed the ZyMOS POACH chipset for its Intel 80286 and Intel 80386SX processors (the 82230/82231 High Integration AT-Compatible Chip Set). The 82230 covers this combination of chips: 82C284 clock, 82288 bus controller, and dual 8259A interrupt controllers among with other components. The 82231 covers this combination of chips: 8254 interrupt timer, 74LS612 memory mapper and dual 8237A DMA controller among with other components. Both set were available US$60 for 10 MHz version and US$90 for 12 MHz version in quantities of 100.Ormsby, John, Editor, "New Product Focus: Components: Intel's 82X3X Chip-set Handles Logic Functions That Once Required The Services Of Sources Of Chips", Intel Corporation, Microcomputer Solutions, January/February 1988, page 13 This chipset can be used with an 82335 High-integration Interface Device to provide support for the Intel 386SX.Lewnes, Ann, "Welcome 80386SX", Microcomputer Solutions, September/October 1988, page 2

List of early Intel chipset includes:{{cite web |url=ftp://download.intel.com/museum/research/arc_collect/timeline/TimelineDateSort7_05.pdf |title=Archived copy |access-date=2008-09-02 |url-status=dead |archive-url=https://web.archive.org/web/20080910041059/http://download.intel.com/museum/research/arc_collect/timeline/TimelineDateSort7_05.pdf |archive-date=2008-09-10 }}{{cite web

| title = Time Line 1980-1989

| url = http://www.intel-vintage.com/timeline19801989.htm

| access-date = 2012-01-14

| archive-url = https://web.archive.org/web/20120113013236/http://www.intel-vintage.com/timeline19801989.htm

| archive-date = 2012-01-13

| url-status = dead

}}

• 82077AA CHMOS Single-Chip Floppy Disk Controller for the 32-bit systems.[http://www.bitsavers.org/components/intel/_dataSheets/290410-001_82077SL_Floppy_Disk_Controller_May91.pdf Intel Corporation, "82077SL CHMOS Single-Chip Floppy Disk Controller", May 1991, Order Number: 290410-001]Chen, Allan, "The 386 SL Microprocessor Superset: The 32-bit Notebook Hits the Road", Intel Corporation, Microcomputer Solutions, January/February 1991, page 2
• 82091AA EISA/ISA - Advanced Integrated Peripheral (AIP), includes: floppy disk controller, 2× UARTs, parallel port, IDE controller, oscillator, etc.{{cite web |title=82091AA ADVANCED INTEGRATED PERIPHERAL (AIP) |url=http://www.intel.com/design/archives/periphrl/docs/29048603.htm |access-date=2013-08-02 |archive-url=https://web.archive.org/web/20140116221203/http://www.intel.com/design/archives/periphrl/docs/29048603.htm |archive-date=2014-01-16 |url-status=live }}
• 82310 MCA family chipset - announced in April 1988.{{Cite news

| title = PS/2 Model 80 Clones Based on Intel Chipset

| first1 = Tom

| last1 = Moran

| newspaper = InfoWorld

| date = April 25, 1988

| page = 1

| url = https://books.google.com/books?id=pj0EAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627025936/http://books.google.com/books?id=pj0EAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}} This chipset also supports the 80386SX based machines as well. Which it does includes:{{cite web|url=https://archive.org/details/bitsavers_inteldataBrocessorandPeripheralHandbookVol1_114989017|title=1989 Intel Microprocessor and Peripheral Handbook Vol 1|work=Internet Archive|access-date=2016-08-18|archive-url=https://web.archive.org/web/20160703235950/https://archive.org/details/bitsavers_inteldataBrocessorandPeripheralHandbookVol1_114989017|archive-date=2016-07-03|url-status=live}}Intel Corporation, "NewsBit: Intel Technology Powers New Tandy PC", Microcomputer Solutions, July/August 1988, page 1

• 82306 Local Channel Support Chip
• 82307 DMA Controller/Central Arbiter
• 82308 Micro Channel Bus Controller
• 82309 Address Bus Controller
• 82706 VGA Graphics Controller
• 82311 MCA - announced in November 1988.{{Cite news

| title = MCA Multiprocessing In the Works at Intel

| first1 = Martin

| last1 = Marshall

| newspaper = InfoWorld

| date = November 14, 1988

| page = 1

| url = https://books.google.com/books?id=wTsEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20170227013930/https://books.google.com/books?id=wTsEAAAAMBAJ

| archive-date = February 27, 2017

| url-status = live

}}{{cite web

| title = Intel Introduces the Second Generation Micro Channel Chip Set

| date = November 29, 1988

}} Includes: 82303 and 82304 Local I/O Channel Support Chips, 82307 DMA Controller/Central Arbiter, 82308 Micro Channel Bus Controller, 82309 Address Bus Controller, 82706 VGA Graphics Controller, 82077 Floppy Disk Controller.{{Cite news

| title = Uncorking the future

| first1 = Mark

| last1 = Brownstein

| newspaper = InfoWorld

| date = November 13, 1989

| page = 101

| url = https://books.google.com/books?id=sTAEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627030045/http://books.google.com/books?id=sTAEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}}

• 82320 MCA - announced in April 1989.{{Cite news

| title = Intel Adds Low-Power 386SX To List of Chip Announcements

| first1 = Ron

| last1 = Copeland

| newspaper = InfoWorld

| date = April 17, 1989

| page = 105

| url = https://books.google.com/books?id=CDoEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627030632/http://books.google.com/books?id=CDoEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}} This chipset supports the i486 microprocessor. It was expected to be available in the later half of 1989.

• 82340SX PC AT - announced in January 1990, it is the Topcat chipset licensed from VLSI.{{Cite news

| title = Intel to Market VLSI Topcat Chips

| first1 = Ron

| last1 = Copeland

| newspaper = InfoWorld

| date = January 8, 1990

| page = 3

| url = https://books.google.com/books?id=dzAEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627030754/http://books.google.com/books?id=dzAEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}}

• 82340DX PC AT - announced in January 1990, it is the Topcat chipset licensed from VLSI.
• 82350 EISA - announced in September 1988.{{Cite news

| title = New EISA Features Set It Apart From the AT Bus

| first1 = Tom

| last1 = Moran

| first2 = Ed

| last2 = Scannel

| newspaper = InfoWorld

| date = September 26, 1988

| page = 23

| url = https://books.google.com/books?id=kDoEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627025440/http://books.google.com/books?id=kDoEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}} This chipset supports the i486 microprocessor. It was expected to be available in the later half of 1989.Intel Corporation, "NewsBits: Intel Introduces EISA and MCA Support for i486 Microprocessor", Microcomputer Solutions, July/August 1989, page 1

• 82350DT EISA - announced in April 1991.{{Cite news

| title = Intel Debuts EISA Chip Set for Lower Cost 32-Bit Systems

| first1 = Louise

| last1 = Fickel

| newspaper = InfoWorld

| date = April 29, 1991

| page = 28

| url = https://books.google.com/books?id=y1AEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627025609/http://books.google.com/books?id=y1AEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}} This version supports Intel486 DX2 CPU.Hodson, Gerri, "The Intel486 DX2 Microprocessor: Speed-Doubler Technology", Intel Corporation, Microcomputer Solutions, May/June 1992, page 2-5

• 82360SL - announced in October 1990.{{Cite news

| title = Intel to Introduce 20-MHz Chip Set

| first1 = Nico

| last1 = Krohn

| newspaper = InfoWorld

| date = October 15, 1990

| page = 5

| url = https://books.google.com/books?id=LjwEAAAAMBAJ

| access-date = October 15, 2016

| archive-url = https://web.archive.org/web/20140627024041/http://books.google.com/books?id=LjwEAAAAMBAJ

| archive-date = June 27, 2014

| url-status = live

}} It was a chipset for the mobile 80386SL and 80486SL processors. It integrated DMA controller, an interrupt controller PIC, serial and parallel ports, I/O Control, NMI, Real Time Clock, Timers and power-management logic for the processor. This chipset contains 226,000 transistors using the one-micron CHMOS IV technology. It was available for US$45 in quantities of 1,000.

• 82365SL - PC Card Interface Controller. This support PCMCIA 2.0 standard using the Exchangeable Card Architecture which supports both I/O and memory ExCA-compliant cards. It uses the Intel386SL power-management features. This was available for US$35 in samples of quantities of 1,000-unit.Intel Corporation, "New Product Focus: Components: First Exchangeable Plug-In Cards Support PCMCIA", Microcomputer Solutions, November/December 1991, page 11
• 82380 - High Performance 32-Bit DMA Controller with Integrated System Support Peripherals. This chipset has 20-level programmable interrupt controller a superset of Intel's 82C59 PIC. It also has four (x4) 16-bit programmable internal timers which its superset Intel's 82C54 PIT. It also has built-in DRAM refresh controller as well. It is available for US$149 and US$299 for 16 MHz and 20 MHz respectively in quantities of 100.Intel Corporation, "New Product Focus Components: The 32-Bit Computing Engine Full Speed Ahead", Solutions, May/June 1987, page 10 The Intel M82380 met under MIL-STD-883 Rev. C standard. This military device was tested which includes temperature cycling between -55 and 125 °C, hermeticity and extended burn-in. This military version can have transfer rate of 32 Mbytes per seconds at 16 MHz. This military version were available in 132-lead CPGA and 164-lead CQPK. This military version were available for US$520 100-unit of quantities for the PGA version.Intel Corporation, "Focus: Components: Militarized Peripherals Support M386 Microprocessor", Microcomputer Solutions, March/April 1989, page 12
• 82384 - Clock Generator. The available version for US$15 in quantities of 100.Intel Corporation, "New Product Focus Component: A 32-Bit Microprocessor With A Little Help From Some Friends", Special 32-Bit Issue Solutions, November/December 1985, page 13
• 82385 - High Performance 32-Bit Cache Controller. This chipset was introduced in February 1987. It was available for 20 MHz version.Intel Corporation, "NewsBit: 80386 Computing Engine Now Complete", Microcomputer Solutions, November/December 1987, page 1 There is 33 MHz version available for the 386DX processor.Lewnes, Ann, "The Intel386 Architecture Here to Stay", Intel Corporation, Microcomputer Solutions, July/August 1989, page 2 Paired with 33 MHz 386 CPU and 64-Kbyte memory subsystem, it performed up to 7.8 MIPS.Intel Corporation, "New Product Focus: Components: 386 Smart Cache Reduces Subsystem to One Chip", Microcomputer Solutions, September/October 1990, page 10 There is 82385SX version for the 386SX microprocessor.
• 82395DX - High Performance Smart Cache. This chipset contains internal 16-Kbye of SRAM and 1,000 cache tags. This controller supports up to 128-Kbytes of cache memory subsystem which it features four-way set associativity; a 16-byte line size; a four, double-word write buffer; and concurrent line-buffer caching. This also support write-buffer memory update protocol and maintains cache coherency during bus snooping. Paired with 33 MHz 386 CPU and the controller can perform up to 8.3 MIPS. This was available in 196-pin PQFP for US$90 and $109 for 25- and 33-MHZ version in quantites of 1000 respectively. There is Intel 82395SX version which it contains 8-Kbyte of cache memory for the 80386SX microprocessor family which it performs as much as 7% better than the 82385SX version. It was available for US$44 in quantities of 1000 units housed by 132-pin PQFP. The Intel 82396SX version contains 16-Kbyte of cache memory which were available in second quarter of 1991.Intel Corporation, "New Product Focus: Components: Two New Devices Extend Smart Cache Family", Microcomputer Solutions, March/April 1991, page 13

• 82495DX - Cache Controller. This support zero-wait-state with two-way set associative cache with several configurable parameters. This support MESI protocol and bus snooping. It is available for US$198.Chen, Allan, "The 50-MHz Intel486 Microprocessor", Intel Corporation, Microcomputer Solutions, September/October 1991, page 2
• 82490DX - 32-Kbyte Dual Port Intelligent Cache SRAM. Providing second level write-back cache with dual-ported buffers and registers. It is available for US$41.

While not an actual Intel chipset bug, the Mercury and Neptune chipsets could be found paired with RZ1000 and CMD640 IDE controllers with data corruption bugs. L2 caches are direct-mapped with SRAM tag RAM, write-back for 430FX, HX, VX, and TX.

{{Main article|PCI IDE ISA Xcelerator}}

Summary:

• 845 (Brookdale)
• two distinct versions 845 MCH for SDR and 845 MCH for DDR{{cite web |url=https://www.intel.com/content/www/de/de/chipsets/845-chipset-82845-memory-controller-hub-sdr-datasheet.html |title=Intel 845 Chipset: 82845 MCH for SDR: Datasheet |publisher=Intel.com |date=2013-12-15 |access-date=2014-01-19 |archive-url=https://web.archive.org/web/20130603103400/http://www.intel.com/content/www/de/de/chipsets/845-chipset-82845-memory-controller-hub-sdr-datasheet.html |archive-date=2013-06-03 |url-status=live }}{{cite web |url=https://www.intel.com/content/www/de/de/chipsets/845-chipset-82845-memory-controller-hub-ddr-datasheet.html |title=Intel 845 Chipset: Memory Controller Hub (MCH) For DDR |publisher=Intel.com |date=2013-12-13 |access-date=2014-01-19 |archive-url=https://web.archive.org/web/20130603105050/http://www.intel.com/content/www/de/de/chipsets/845-chipset-82845-memory-controller-hub-ddr-datasheet.html |archive-date=2013-06-03 |url-status=live }}
• 875P (Canterwood)
• Similar to E7205, but adds support for 800 MHz bus, DDR at 400 MHz, Communication Streaming Architecture (CSA), Serial ATA (with RAID in certain configurations) and Performance Acceleration Technology (PAT), a mode purported to cut down memory latency.
• SMP capability exists only on Xeon-based (socket 604) motherboards using the 875P chipset. FSB is rated at {{nowrap|533 MHz}} on these motherboards.
• 865PE (Springdale)
• 875P without PAT, though it was possible to enable PAT in some early revisions. Also lacks ECC Memory support.
• Sub-versions:
• 865P - Similar to 865PE, but supports only 400/533 MHz bus and 333 MHz memory.
• 848P - Single memory channel version of 865PE.
• 865G (Springdale-G)
• 865PE with integrated graphics (Intel Extreme Graphics 2). PAT never supported in any revisions.
• Sub-versions:
• 865GV - 865G without external AGP slot.
• E7221 (Copper River)
• Designed for Pentium 4-based server.
• Supports only one physical processor.
• A basic SVGA controller is integrated for analog video.
• One PCI-X slot can be bridged to the PCI-e ×8 using the Intel 6702PXH 64-bit PCI Hub.
• E7230 (Mukilteo)
• Similar to the Intel 3000 MCH, but mainly designed for Pentium D-based server.
• Supports only one physical processor.
• DDR2-667 4-4-4 is not supported.
• No integrated graphics.
• One PCI-X slot can be bridged to the PCI-e ×8 using Intel 6700PXH 64-bit PCI Hub/Intel 6702PXH 64-bit PCI Hub.

{{Main article|I/O Controller Hub}}

All chipsets listed in the table below:

• Do not support SMP
• Support (-R and -DH) variants for South Bridges

^[*] Remapping of PCIE/APIC memory ranges not supported,[https://www.intel.com/Assets/PDF/datasheet/309219.pdf Mobile Intel 945 Express Chipset Family Datasheet] {{Webarchive|url=https://web.archive.org/web/20171130113624/https://www.intel.com/Assets/PDF/datasheet/309219.pdf |date=2017-11-30 }}, section 9.2[https://download.intel.com/design/chipsets/datashts/30146403.pdf Intel 925X/925XE Datasheet] {{Webarchive|url=https://web.archive.org/web/20131126071912/http://download.intel.com/design/chipsets/datashts/30146403.pdf |date=2013-11-26 }}, section 9.2 some physical memory might not be accessible (e.g. limited to 3.5 GB or similar).

^[1] Some later revisions of motherboards based on 945P,945G and 945PL chipset usually supports some Core 2 processors (with later BIOSes). Core 2 Quad is not supported. Only Core 2 Duo, Pentium Dual-Core, and Core2 based Celerons.

Summary:

• 915P (Grantsdale)
• Supports Pentium 4 on an 800 MT/s bus. Uses DDR memory up to 400 MHz, or DDR2 at 533 MHz. Replaces AGP and CSA with PCI Express, and also supports "Matrix RAID", a RAID mode designed to allow the usage of RAID levels 0 and 1 simultaneously with two hard drives. (Normally RAID1+0 would have required four hard drives)
• Sub-versions:
• 915PL - Cut-down version of 915P with no support for DDR2 and only supporting 2 GB of memory.
• 915G (Grantsdale-G)
• 915P with an integrated GMA 900. This core contains Pixel Shader version 2.0 only, it does not contain Vertex Shaders nor does it feature Transform & Lighting (T&L) capabilities and therefore is not Direct X 8.1 or 9.0 compliant.
• Sub-versions:
• 915GL - Same feature reductions as 915PL, but supports 4 GB of memory. No support for external graphics cards.
• 915GV - Same as 915G, but has no way of adding an external graphics card.
• 910GL - No support for external graphics cards or 800 MT/s bus.
• 925X (Alderwood)
• Higher end version of 915. Supports another PAT-like mode and ECC memory, and exclusively uses DDR-II RAM.
• Sub-versions:
• 925XE - Supports a 1066 MT/s bus.
• 945P (Lakeport)
• Update on 915P, with support for Serial ATA II, RAID mode 5, an improved memory controller with support for DDR-II at 667 MHz and additional PCI Express lanes. Support for DDR-I is dropped. Formal dual-core support was added to this chipset.
• Sub-versions:
• 945PL - No support for 1066 MT/s bus, only supports 2 GB of memory.
• 945G (Lakeport-G)
• A version of the 945P that has a GMA 950 integrated, supports a 1066 MT/s bus.
• Sub-versions:
• 945GC - Same feature reductions as 945PL but with an integrated GMA 950.
• 945GZ - Same as 945GC but only supports DDR2 memory at 400/533 MT/s. No support for external graphics cards (some boards, like Asus P5GZ-MX, support through ICH7 on PCIe ×16 @4 lanes mode).
• 955X (Lakeport)
• Update for 925X, with additional features of "Lakeport" (e.g., PAT features and ECC memory), and uses DDR2.

All Core 2 chipsets support the Pentium Dual-Core and Celeron processors based on the Core architecture. Support for all NetBurst based processors was officially dropped starting with the Bearlake chipset family.{{cite web|author=Patrick Schmid |url=http://www.tomshardware.com/reviews/intel-intros-3-series-chipsets-fsb1333-ddr3,1607-3.html |title=The 3-Series Chipset Family A.k.a. Bearlake - Intel Intros 3-Series Chipsets with FSB1333 and DDR3 |publisher=Tomshardware.com |date=2007-05-21 |access-date=2014-01-19}} However, some motherboards still support the older processors.{{cite web |url=https://www.asrock.com/mb/cpu.asp?Model=4Core1600Twins-P35 |title=> Products > 4Core1600Twins-P35 > CPU Support List |publisher=ASRock |access-date=2014-01-19 |archive-url=https://web.archive.org/web/20140102191712/http://www.asrock.com/mb/cpu.asp?Model=4Core1600Twins-P35 |archive-date=2014-01-02 |url-status=live }}

^[*] Remapping of PCIE/APIC memory ranges not supported, some physical memory might not be accessible (e.g. limited to 3.5 GB or similar). Operational configuration is 4 ranks - 2× 2 GB dual rank modules or 4× 1 GB single rank modules - depends on number of motherboard DDR2 slots.

Summary:

• 946PL (Lakeport)
• Update on 945PL, supports 4 GB of memory.
• 946GZ (Lakeport-G)
• A version of 946PL with GMA 3000 graphics core.
• P965 (Broadwater)
• Update on 945P, no native PATA support, improved memory controller with support for DDR2 memory up to 800 MHz and official Core 2 Duo support.
• G965 (BroadwaterG)
• A version of P965 that has a GMA X3000 integrated graphics core.
• Q965 (Broadwater)
• Expected G965 intended for Intel's vPro office computing brand, with GMA 3000 graphics instead of GMA X3000 graphics. Supports an ADD2 card to add a second display.
• Sub-versions:
• Q963 - Q965 without an external graphics interface or support for ADD2.
• 975X (Glenwood)
• Update of 955, with support for ATI Crossfire Dual Graphics systems and 65 nm processors, including Core 2 Duo.
• P35 (Bearlake)
• The P35 chipset provides updated support for the new Core 2 Duo E6550, E6750, E6800, and E6850. Processors with a number ending in "50" have a 1333 MT/s FSB. Support for all NetBurst based processors is dropped with this chipset.
• G33 (BearlakeG)
• A version of P35 with a GMA 3100 integrated graphics core and uses an ICH9 South Bridge.
• Sub-versions:
• G35 - G33 with a GMA x3500 integrated graphics core and uses an ICH8 South Bridge, no DDR3 support.
• Q35 (BearlakeG)
• Expected G33 intended for Intel's vPro office computing brand, no DDR3 Support.
• Sub-versions:
• Q33 - Q35 without vPro support.
• P31 (BearlakeG)
• A version of P35 with an ICH7 South Bridge, supports only 4 GB of DDR2 memory and does not support DDR3 memory.
• Operational configuration is 4 ranks - 2× 2 GB dual rank modules or 4 × 1 GB single rank modules - depends on number of motherboard DDR2 slots. 4GBs modules are not supported.
• G31 (BearlakeG)
• A version of P31 with a GMA 3100 integrated graphics core. It supports a 1333 MT/s FSB with Core 2 Duo processors, but Core 2 Quad processors are only supported up to 1066 MT/s.{{cite web |url=https://www.intel.com/assets/pdf/prodbrief/317838.pdf |title=Intel G31 Express Chipset Product Brief |access-date=2018-07-07 |archive-url=https://web.archive.org/web/20180912131428/https://www.intel.com/Assets/PDF/prodbrief/317838.pdf |archive-date=2018-09-12 |url-status=live }}
• G41 (EaglelakeG)
• Update of G31 with a GMA X4500 integrated graphics core and DDR3 800/1066 support.
• P45 (Eaglelake)
• Update of P35, with PCIe 2.0 support, Hardware Virtualization, Extreme Memory Profile (XMP) and support for ATI Crossfire (x8+x8).
• Sub-versions:
• P43 - P45 without Crossfire support.
• G45 (EaglelakeG)
• A version of P45 that has a GMA X4500HD integrated graphics core and lacks Crossfire support.
• Sub-versions:
• G43 - Same feature reductions as P43, but with a GMA X4500 integrated graphics core.
• Q45 (EaglelakeQ)
• Expected G43 intended for Intel's vPro office computing brand. Also supports Hardware Virtualization Technology and Intel Trusted Platform Module 1.2 feature.
• Sub-versions:
• Q43 - Q45 without vPro support. Also lacks Intel Trusted Platform Module 1.2 support.
• B43 - Q43 with an ICH10D South Bridge.

^[1] The 975X chipset supports only ×16 PCI Express (electrically) in the top slot when the slot below it is unpopulated. Otherwise it and the lower slot (both attached to the Memory Controller Hub) operate at ×8 electrically.

^[2] Only later revisions of the 975X chipset boards support Core 2 processors. See MSI 975X Platinum (MS-7246) rev 1.0 (first release), and MSI 975X Platinum Powerup revision (MS-7246) rev 2.1 (released autumn 2006) as example. source: https://web.archive.org/web/20210515170458/http://ixbtlabs.com/articles2/mainboard/msi-975x-platinum-powerup-edition-i975x.html

Officially 975X supports a maximum of 1066 MT/s FSB. Unofficially, third-party motherboards (Asus, Gigabyte) support certain 1333FSB 45 nm Core2 processors, usually with later BIOS updates.

As for Celeron and Celeron D support, some boards and revisions support it, some not. (see upper example, MSI Powerup Edition has reintroduced back Celeron support, probably due to later released Core2-based Celerons, which were often more powerful than higher clocked Netburst Pentiums 4.

^[3] The 975X chipset technical specification shows only DDR2-533/667 memory support. Actual implementations of 975X do support DDR2 800.

^[4] VT-d is inherently supported on these chipsets, but may not be enabled by individual OEMs. Always read the motherboard manual and check for BIOS updates. X38/X48 VT-d support is limited to certain Intel, Supermicro, DFI (LanParty) and Tyan boards. VT-d is broken or non existent on some boards until the BIOS is updated. Note that VT-d is a chipset Memory Controller Hub technology, not a processor feature, but this is complicated by later processor generations (Core i3/i5/i7) moving the MCH from the motherboard to the processor package, making only certain I series CPUs support VT-d.

• ¹ Unofficially this chipset support 5 GB.
• ² Officially only 4 GB is supported. Unofficially many laptops with this chipset support 8 GB.
• ³ Low power mode, HD playback mode and Full performance mode respectively.

{{Main article|I/O Controller Hub}}{{None}}

The Nehalem microarchitecture moves the memory controller into the processor. For high-end Nehalem processors, the X58 IOH acts as a bridge from the QPI to PCI Express peripherals and DMI to the ICH10 southbridge. For mainstream and lower-end Nehalem processors, the integrated memory controller (IMC) is an entire northbridge (some even having GPUs), and the PCH (Platform Controller Hub) acts as a southbridge.

{{Main article|Intel 5 Series}}

Chipsets supporting LGA 1156 CPUs (Lynnfield and Clarkdale).

Not listed below is the 3450 chipset (see Xeon chipsets) which is compatible with Nehalem mainstream and high-end processors but does not claim core iX-compatibility. With either a Core i5 or i3 processor, the 3400-series chipsets enable the ECC functionality of unbuffered ECC memory.{{cite web |title=Intel correspondence quoted on silentpcreview forum |url=http://www.silentpcreview.com/forums/viewtopic.php?f=13&t=60512&start=60 |url-status=dead |archive-url=https://web.archive.org/web/20120105202008/http://www.silentpcreview.com/forums/viewtopic.php?f=13&t=60512&start=60 |archive-date=2012-01-05 |access-date=2011-09-26}} Otherwise these chipsets do not enable unbuffered ECC functionality.

{{See also

| LGA 1155#Sandy Bridge family of chipsets | label 1=Sandy Bridge chipsets (6 Series)

| LGA 1155#Ivy Bridge family of chipsets | label 2=Ivy Bridge chipsets (7 Series)}}

Chipsets supporting LGA 1155 CPUs (Sandy Bridge and Ivy Bridge). The PCIe 2.0 lanes from the PCH ran at 5 GT/s in this series, unlike in the previous LGA 1156 chips.{{cite web |url=https://www.anandtech.com/show/3574 |title=P55 Chipset - Quick Primer |author=Gary Key |publisher=AnandTech.com |date=2009-09-08 |access-date=2019-05-05 |archive-url=https://web.archive.org/web/20190504233100/https://www.anandtech.com/show/3574 |archive-date=2019-05-04 |url-status=live }}

The Cougar Point Intel 6 series chipsets with stepping B2 were recalled due to a hardware bug that causes their 3 Gbit/s Serial ATA to degrade over time until they become unusable. Stepping B3 of the Intel 6 series chipsets will have the fix for this. The Z68 chipset which supports CPU overclocking and use of the integrated graphics does not have this hardware bug, however all other ones with B2 did.{{cite web |title=Intel Discovers Bug in 6-Series Chipset: Our Analysis |url=http://www.anandtech.com/show/4142/intel-discovers-bug-in-6series-chipset-begins-recall |url-status=live |archive-url=https://web.archive.org/web/20131224114540/http://www.anandtech.com/show/4142/intel-discovers-bug-in-6series-chipset-begins-recall |archive-date=2013-12-24 |access-date=2014-01-19 |publisher=AnandTech}} The Z68 also added support for transparently caching hard disk data on to solid-state drives (up to 64 GB), a technology called Smart Response Technology.[http://www.pcper.com/reviews/Storage/Intel-Smart-Response-Technology-SSD-Caching-Z68-Tested/Boot-Option-ROM-Boot-Performa Intel Smart Response Technology: SSD Caching on Z68 Tested] {{Webarchive|url=https://web.archive.org/web/20120404031013/http://pcper.com/reviews/Storage/Intel-Smart-Response-Technology-SSD-Caching-Z68-Tested/Boot-Option-ROM-Boot-Performa|date=2012-04-04}}, PC Perspective

• ¹ For Sandy Bridge mainstream desktop and business platforms. Sandy Bridge CPUs provide 16 PCIe 2.0 lanes for direct GPU connectivity.
• ² For Ivy Bridge mainstream desktop platform. Ivy Bridge CPUs provide 16 PCIe 3.0 lanes for direct GPU connectivity and additional 4 PCIe 2.0 lanes.{{cite web |author=Paul Goodhead |url=http://www.bit-tech.net/news/hardware/2011/03/29/leaked-slide-confirms-pci-e-3-0-for-intel-c/1 |title=Leaked slide confirms PCIe 3.0 for Intel Ivy Bridge CPUs |publisher=bit-tech.net |date=2011-03-29 |access-date=2014-01-19 |archive-url=https://web.archive.org/web/20131021143309/http://www.bit-tech.net/news/hardware/2011/03/29/leaked-slide-confirms-pci-e-3-0-for-intel-c/1 |archive-date=2013-10-21 |url-status=live }}

{{See also | LGA 1150#Haswell chipsets | label 1=Haswell / Broadwell chipsets (8/9 Series)}}

Chipsets that support LGA 1150 CPUs are listed below. Haswell and Haswell Refresh CPUs are supported by all listed chipsets; however, a BIOS update is usually required for 8-Series Lynx Point motherboards to support Haswell Refresh CPUs.{{cite web |url=https://www.asus.com/Motherboards/Z87DELUXE/HelpDesk_CPU/ |title=Motherboards - Z87-DELUXE |publisher=ASUS |access-date=2014-07-26 |archive-url=https://web.archive.org/web/20140523064443/http://www.asus.com/Motherboards/Z87DELUXE/HelpDesk_CPU/ |archive-date=2014-05-23 |url-status=live }} Broadwell CPUs are supported only by 9-Series chipsets, which are usually referred to as Wildcat Point.{{cite web|url=https://ark.intel.com/products/codename/37530/Lynx-Point|title=Products (Formerly Lynx Point)|work=Intel ARK (Product Specs)|access-date=2017-10-07|archive-url=https://web.archive.org/web/20171007070048/https://ark.intel.com/products/codename/37530/Lynx-Point|archive-date=2017-10-07|url-status=live}}

The C1 stepping of the Lynx Point chipset contains a bug{{snd}}a system could lose connectivity with USB devices plugged into USB 3.0 ports provided by the chipset if the system enters the S3 sleep mode.{{Cite news |url=http://www.pcauthority.com.au/News/335598,intels-upcoming-z87-chipset-has-an-annoying-usb-3-bug.aspx |first=John |last=Gilloy |title=Intel's upcoming Z87 chipset has an annoying USB 3 bug |date=6 March 2013 |newspaper=PC & Tech Authority |access-date=5 November 2014 |archive-url=https://web.archive.org/web/20141106044323/http://www.pcauthority.com.au/News/335598,intels-upcoming-z87-chipset-has-an-annoying-usb-3-bug.aspx |archive-date=6 November 2014 |url-status=live }}

Single socket chipsets supporting LGA 1366, LGA 2011, and LGA 2011-v3 CPUs. Please consult List of Intel Xeon chipsets for further, multi-socket, chipsets for these sockets.

• ¹ X58 South Bridge is ICH10/ICH10R.
• ² X58 TDP includes the X58 IOH TDP in addition to the ICH10/ICH10R TDP.
• ³ For Sandy Bridge enthusiast desktop platform. Sandy Bridge CPUs will provide up to 40 PCIe 3.0 lanes for direct GPU connectivity and additional 4 PCIe 2.0 lanes. NOTE : This reference number 4 is on X79, which is a Sandy bridge -E, not Sandy Bridge, and PCIe 3.0 only is enabled when an Ivy Bridge-E CPU or Xeon E-5 series is used.
• ⁴ For Haswell enthusiast desktop platform. Haswell CPUs will provide up to 40 PCIe 3.0 lanes for direct GPU connectivity and additional 4 PCIe 2.0 lanes.

Chipsets supporting LGA 2066 socket for Skylake-X processors and Kaby Lake-X processors.

The C621 Chipset also supports LGA 3647 socket for Skylake-SP as well as Cascade Lake-W and Cascade Lake-SP processors.

All Core-i series mobile chipsets have an integrated south bridge.

Every 4th Generation Intel Core and 5th Generation Intel Core processor based on Mobile U-Processor and Y-Processor Lines has an on-package Platform Controller Hub.{{Cite web |last=Hassan |first=Mujtaba |date=Nov 12, 2012 |title=Intel Haswell ULT Processors Power Saving Features and Lynx Point-LP Chipset Detailed |url=https://wccftech.com/intel-haswell-ult-processors-power-saving-features-lynx-point-lp-chipset-detailed/}}

• All support Intel VT-d and do not support PCI.

{{See also

| LGA_1151#Skylake chipsets (100 series) | label 1=Skylake chipsets (100 series)

| LGA 1151#Kaby Lake chipsets (200 series) | label 2=Kaby Lake chipsets (200 series)}}

The 100 Series chipsets (codenamed Sunrise Point), for Skylake processors using the LGA 1151 socket,{{cite web|url=http://hexus.net/tech/news/mainboard/80342-intels-skylake-100-series-chipset-revealed/|title=Intel's Skylake 100-Series chipset is revealed|work=hexus.net|date=4 February 2015 |access-date=12 February 2015|archive-url=https://web.archive.org/web/20150207164325/http://hexus.net/tech/news/mainboard/80342-intels-skylake-100-series-chipset-revealed/|archive-date=7 February 2015|url-status=live}} were released in the third quarter of 2015.{{cite web |url=https://ark.intel.com/products/codename/37572/Skylake |title=Products formerly Skylake |website=Intel ARK |access-date=2017-03-09 |archive-url=https://web.archive.org/web/20170330002953/https://ark.intel.com/products/codename/37572/Skylake |archive-date=2017-03-30 |url-status=live }}

The 200 Series chipsets (codenamed Union Point) were introduced along with Kaby Lake processors, which also use the LGA 1151 socket;{{cite news|last1=Cutress|first1=Ian|last2=Shilov|first2=Anton|title=Desktop Kaby Lake-S i7/i5 Lineup and 200-Series Chipsets Leaked|url=http://www.anandtech.com/show/10802/desktop-kaby-lakes-lineup-base-frequencies-chipset-names|access-date=31 October 2016|publisher=Anandtech|date=31 October 2016|archive-url=https://web.archive.org/web/20161101101832/http://www.anandtech.com/show/10802/desktop-kaby-lakes-lineup-base-frequencies-chipset-names|archive-date=1 November 2016|url-status=live}} these were released in the first quarter of 2017.{{cite web |url=https://ark.intel.com/products/codename/82879/Kaby-Lake |title=Products formerly Kaby Lake |website=Intel ARK |access-date=2017-03-09 |archive-url=https://web.archive.org/web/20170312034430/http://ark.intel.com/products/codename/82879/Kaby-Lake |archive-date=2017-03-12 |url-status=live }}

File:Intel B360 Cannon Point Chipset Die Shot.png

{{See also | LGA 1151#Coffee Lake chipsets (300 series and C240 series) | label 1=Coffee Lake chipsets (300 series)}}

While Coffee Lake shares the same socket as Skylake and Kaby Lake, this revision of LGA 1151 is electrically incompatible with 100 and 200 series CPUs.

The 300 Series chipsets were introduced along with Coffee Lake processors, which use the LGA 1151 socket; the enthusiast model was released in the last quarter of 2017,{{cite web |url=https://ark.intel.com/products/codename/125903 |title=Intel Z370 Chipset |website=Intel ARK |access-date=2018-02-21}} the rest of the line was released in 2018.{{cite web|url=https://www.gamersnexus.net/news-pc/3069-hw-news-intel-h370-b360-zen2-aib-partner-vega-cards|title=HW News: Intel H370, B360, & BGA Pentiums, Zen+ & Zen 2|work=gamersnexus.net|date=28 September 2017 |access-date=2018-02-21|archive-url=https://web.archive.org/web/20180221222536/https://www.gamersnexus.net/news-pc/3069-hw-news-intel-h370-b360-zen2-aib-partner-vega-cards|archive-date=2018-02-21|url-status=live}}

C232 and C242 chipsets do not support CPU integrated GPUs, as they lack FDI support. Officially they support only Xeon processors, but some motherboards also support consumer processors (6/7th generation Core for C230 series, 8/9th generation Core for C240 series and its Pentium/Celeron derivatives).

{{See also | LGA 1200#Comet Lake chipsets (400 series) | label 1=Comet Lake chipsets (400 series) | LGA 1200#Rocket Lake chipsets (500 series) | label 2= Rocket Lake chipsets (500 series)}}

LGA 1200 is a CPU socket designed for Comet Lake and Rocket Lake desktop CPUs. Like its predecessors, LGA 1200 has the same number of pins its name would suggest: 1200. Under the hood, LGA 1200 is a modified version of LGA 1151, its predecessor. It features 49 additional protruding pins that are used to improve power delivery and provide support for eventual updates with I/O features.

• ^† Connection to the CPU will be reduced to DMI 3.0 ×4 if a Comet Lake CPU is installed. DMI 3.0 ×8 is only available with Rocket Lake CPUs.
• ^‡ Mainboards advertised as H410 and B460 with Rocket Lake support use other 400-series chipsets. (such as H470){{cite web |url=https://www.notebookcheck.net/Intel-officially-announces-that-B460-and-H410-chipsets-won-t-support-Rocket-Lake-chips-but-Gigabyte-s-H410M-motherboards-offer-a-cheeky-workaround.519339.0.html |title=Intel officially announces that B460 and H410 chipsets won't support Rocket Lake chips but Gigabyte's H410M motherboards offer a cheeky workaround |last=Deakin |first=Daniel |date=2021-02-09 |website=www.notebookcheck.net}}

{{See also|LGA 1700#Alder Lake chipsets (600 series)|label 1=Alder Lake chipsets (600 series)|LGA 1700#Raptor Lake chipsets (700 series)|label 2=Raptor Lake chipsets (700 series)}}

Every 12th Gen and 13th Gen Intel Core-i mobile CPU excluding HX-series has an on-package Platform Controller Hub.

{{See also|LGA 1851#Arrow Lake chipsets (800 series)|label 1=Arrow Lake chipsets (800 series)}}

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• ALi Corporation – for ALi chipsets
• Chips and Technologies
• List of AMD chipsets
• List of ATI chipsets
• Comparison of Nvidia nForce chipsets
• List of Intel Xeon chipsets
• List of Intel processors
• Silicon Integrated Systems – for SiS motherboard chipsets
• List of VIA chipsets

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{{reflist}}

{{commons category|Intel chipsets}}

• [https://ark.intel.com/content/www/us/en/ark.html#@Chipsets Official website]

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