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List of Intel chipsets

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This is an old revision of this page, as edited by 220.255.1.60 (talk) at 08:11, 3 May 2015 (→Core 2 chipsets: Corrected the maximum amount of memory supported for the Q35 and Q33 chipsets). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Intel ICH7 southbridge on an Intel D945GCPE desktop motherboard

This article provides a list of motherboard chipsets made by Intel, divided into three main categories: those that use the PCI bus for interconnection (the 4xx series), those that connect using specialized "hub links" (the 8xx series), and those that connect using PCI Express (the 9xx series). The chipsets are listed in chronological order.

Early chipsets

Intel licensed ZyMOS POACH chipset for Intel 80286 and Intel 80386SX processors (the 82230/82231 High Integration AT-Compatible Chip Set). This chipset can be used with an 82335 High-integration Interface Device to provide support for the Intel 386SX.[1]

List of early Intel chipset includes:[2][3]

  • 82091AA EISA/ISA - Advanced Integrated Peripheral (AIP), includes: floppy disk controller, 2× UARTs, parallel port, IDE controller, oscillator, etc.[4]
  • 82310 MCA - announced in April 1988.[5] Includes: 82306 Local Channel Support Chip, 82307 DMA Controller/Central Arbiter, 82308 Micro Channel Bus Controller, 82309 Address Bus Controller, 82706 VGA Graphics Controller.[1]
  • 82350 EISA - announced in September 1988.[6][7]
  • 82311 MCA - announced in November 1988.[8][9] 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.[1][7]
  • 82320 MCA - announced in April 1989.[10]
  • 82340SX PC AT - announced in January 1990, it is the Topcat chipset licensed from VLSI.[11]
  • 82340DX PC AT - announced in January 1990, it is the Topcat chipset licensed from VLSI.[11]
  • 82360SL - announced in October 1990.[12] It was a chipset for the mobile 80386SL and 80486SL processors. It integrated DMA controller, an interrupt controller PIC, serial and parallel ports, and power-management logic for the processor.
  • 82350DT EISA - announced in April 1991.[13]

4xx chipsets

80486 chipsets

Chipset Code Name Part Numbers South Bridge Release Date Processors FSB SMP Memory types Max. memory Parity/ECC L2 Cache Type PCI support
420TX Saturn 82424TX, 82423TX SIO November 1992 5 V 486 Up to 33 MHz No FPM 128 MB[14] Parity Async. 1.0
420EX Aries 82425EX 82426EX March 1994 5 V/3.3 V 486 Up to 50 MHz No FPM 128 MB Parity Async. 2.0
420ZX Saturn II 82424ZX, 82423TX SIO March 1994 5 V/3.3 V 486 Up to 33 MHz No FPM 160 MB Parity Async. 2.1

Pentium chipsets

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.

Chipset Code Name Part Numbers South Bridge Release Date Processors FSB SMP Memory types Max. memory Max. cacheable Parity/ECC L2 Cache Type PCI support AGP support
430LX Mercury[15] 82434LX (PCMC)
2x 82433LX (LBX)		 SIO (ISA)
PCEB/ESC (EISA)		 March 1993 P60/66 60/66 MHz No FPM 192 MB 192 MB Parity Async. 2.0 No
430NX Neptune[16] 82434NX (PCMC)
2x 82433NX (LBX)		 SIO (ISA)
SIO.A (DP ISA)
PCEB/ESC (EISA)		 March 1994 P75+ 50/60/66 MHz Yes FPM 512 MB 512 MB Parity Async. 2.0 No
430FX Triton[17][18] 82437FX/JX (TSC)
2x 82438FX (TDP)		 PIIX January 1995 P75+ 50/60/66 MHz No FPM/EDO 128 MB 64 MB Neither Async./Pburst 2.0 No
430MX Mobile Triton 82437MX MPIIX October 1995 P75+ 50/60/66 MHz No FPM/EDO 128 MB 64 MB Neither Async./Pburst 2.0 No
430HX Triton II[18][19] 82439HX/JHX (TXC) PIIX3 February 1996 P75+ 50/60/66 MHz Yes FPM/EDO 512 MB 512/64 MB
depending on tag RAM used		 Both Async./Pburst 2.1 No
430VX Triton II[18][20] 82437VX (TVX)
2x 82438VX (TDX)		 PIIX3 February 1996 P75+ 60/66 MHz No FPM/EDO/SDRAM 128 MB 64 MB Neither Async./Pburst 2.1 No
430TX[21] 82439TX (MTXC) PIIX4 February 1997 P75+ 60/66 MHz No FPM/EDO/SDRAM 256 MB 64 MB Neither Async./Pburst 2.1 No

Pentium Pro/II/III chipsets

Chipset Code Name Part numbers South Bridge Release Date Processors[a] FSB SMP Memory types Max. memory Memory banks Parity/ECC PCI support AGP support
450KX Mars 82451KX, 82452KX, 82453KX, 82454KX SIO, SIO.A (ISA)
PCEB/ESC (EISA)		 November 1995 Pentium Pro 60/66 MHz Yes FPM 1 GB Both 2.0 No
450GX Orion 82451GX, 82452GX, 82453GX, 82454GX SIO.A (ISA)
PCEB/ESC (EISA)		 November 1995 Pentium Pro 60/66 MHz Yes (up to four) FPM 8 GB Both 2.0 No
440FX Natoma 82441FX, 82442FX PIIX3 (ISA)
PCEB/ESC (EISA)		 May 1996 Pentium Pro/Pentium II 60/66 MHz Yes FPM/EDO/BEDO 1 GB 4 Both 2.1 No
440LX Balboa 82443LX PIIX4 August 1997 Pentium II/Celeron 66 MHz Yes FPM/EDO/SDRAM 1 GB EDO/512 MB SDRAM 4 Both 2.1 AGP 2×
440EX n/a 82443EX PIIX4E April 1998 Celeron/Pentium II 66 MHz No EDO/SDRAM 256 MB 2 Neither 2.1 AGP 2×
440BX Seattle 82443BX PIIX4E April 1998 Pentium II/III, Celeron 66/100 MHz Yes EDO/SDRAM 1 GB 4 Both 2.1 (64-bit optional) AGP 2×
440GX n/a 82443GX PIIX4E June 1998 Pentium II/III, Xeon 100 MHz Yes SDRAM 2 GB 4 Both 2.1 AGP 2×
450NX n/a 82451NX, 82452NX, 82453NX, 82454NX PIIX4E June 1998 Pentium II/III, Xeon 100 MHz Yes (up to four) FPM/EDO 8 GB 4 Both 2.1 (64-bit optional) No
440ZX/440ZX-66 n/a 82443ZX PIIX4E November 1998 Celeron, Pentium II/III 66/100 MHz (440ZX), 66 MHz (440ZX-66) No SDRAM 512 MB 2 Neither 2.1 AGP 2×
440ZX-M n/a 82443ZX-M PIIX4M Pentium III/mobile Celeron 66/100 MHz No SDRAM 256 MB 2 Neither 2.1 AGP 2×
440MX Banister 82443MX Same chip Pentium II/III, mobile Celeron 66/100 MHz No SDRAM 512 MB 2 Neither 2.2 No

Southbridge 4xx chipsets

Main articles: PCI IDE ISA Xcelerator and Super I/O
Chipset Part Number ATA support USB support CMOS/clock ISA support LPC support Power management
SIO 82378IB/ZB None None No Yes No SMM
SIO.A 82379AB None None No Yes No SMM
PCEB 82375EB/SB None None Yes
ESC 82374EB/SB None None Yes
PIIX 82371FB PIO/WDMA None No Yes No SMM
MPIIX 82371MX PIO None No Yes No SMM
PIIX3 82371SB PIO/WDMA 1 Controller, 2 Ports No Yes No SMM
PIIX4 82371AB PIO/UDMA 33 1 Controller, 2 Ports Yes Yes No SMM
PIIX4E 82371EB PIO/UDMA 33 1 Controller, 2 Ports Yes Yes No SMM
PIIX4M 82371MB PIO/UDMA 33 1 Controller, 2 Ports Yes Yes No SMM

8xx chipsets

Pentium II/III chipsets

Chipset Code name Part numbers South bridge Release date Processors FSB SMP Memory types Max. memory Memory banks Parity or ECC PCI Ext. AGP/speed IGP
810 Whitney 82810 ICH/ICH0 April 1999 Celeron, Pentium II/III 66/100 MHz No EDO/PC100 SDRAM 512 MB 2 Neither v2.2/33 MHz No Yes
810E Whitney 82810E ICH September 1999 Celeron, Pentium II/III 66/100/133 MHz No PC100/133 SDRAM 512 MB 2 Neither v2.2/33 MHz No Yes
810E2 Whitney 8210E ICH2 Celeron, Pentium II/III 66/100/133 MHz No PC100/133 SDRAM 512 MB 2 Neither v2.2/33 MHz No Yes
820 Camino 82820 ICH November 1999 Pentium II/III, Celeron 66/100/133 MHz Yes PC800 RDRAM/PC100 SDRAM (with MTH) 1 GB 2 Both v2.2/33 MHz Yes/AGP 4× No
840 Carmel 82840 ICH October 1999 Pentium III, Xeon 66/100/133 MHz Yes Dual-Channel PC800 RDRAM 4 GB 2×4 Both v2.2/33 MHz+PCI-X/66 MHz Yes/AGP 4× No
820E Camino 82820 ICH2 June 2000 Pentium II/III, Celeron 66/100/133 MHz Yes PC800 RDRAM/PC100 SDRAM (with MTH) 1 GB 2 Both v2.2/33 MHz Yes/AGP 4× No
815 Solano 82815 ICH June 2000 Celeron, Pentium II/III 66/100/133 MHz No PC100/133 SDRAM 512 MB 2 Neither v2.2/33 MHz Yes/AGP 4× Yes
815E Solano 82815 ICH2 June 2000 Celeron, Pentium II/III 66/100/133 MHz Yes (2) PC100/133 SDRAM 512 MB 6* Neither v2.2/33 MHz Yes/AGP 4× Yes
815EP Solano 82815EP ICH2 November 2000 Celeron, Pentium II/III 66/100/133 MHz No PC100/133 SDRAM 512 MB 3 Neither v2.2/33 MHz Yes/AGP 4× No
815P Solano 82815EP ICH/ICH0 March 2001 Celeron, Pentium III 66/100/133 MHz No PC100/133 SDRAM 512 MB 3 Neither v2.2/33 MHz Yes/AGP 4× No
815G Solano 82815G ICH/ICH0 September 2001 Celeron, Pentium III 66/100/133 MHz No PC100/133 SDRAM 512 MB 3 Neither v2.2/33 MHz No Yes
815EG Solano 82815G ICH2 September 2001 Celeron, Pentium III 66/100/133 MHz No PC100/133 SDRAM 512 MB 3 Neither v2.2/33 MHz No Yes

(*)Relevant Gigabyte website Gigabyte's website states that the 815E has six memory banks. .

Pentium III-M mobile chipsets

Chipset Code name Part numbers South bridge Release date Processors FSB SMP Memory types Max. memory Memory banks Parity or ECC PCI Ext. AGP/speed IGP
830M Almador 82830M ICH3M July 2001 Celeron, Pentium III-M 100/133 MHz No PC133 SDRAM 1 GB 2 Neither v2.2/33 MHz Yes/AGP 4× Yes
830MG Almador 82830MG ICH3M Celeron, Pentium III-M 100/133 MHz No PC133 SDRAM 1 GB 2 Neither v2.2/33 MHz No Yes
830MP Almador 82830MP ICH3M Celeron, Pentium III-M 100/133 MHz No PC133 SDRAM 1 GB 2 Neither v2.2/33 MHz Yes/AGP 4× No

Pentium 4 chipsets

Chipset Code name Part numbers South bridge Release date Processors FSB SMP Memory types Max. memory Parity/ECC PCI Type Graphics TDP
850 Tehama 82850 (MCH) ICH2 November 2000 Pentium 4 400 MT/s (100 MHz QDR) No PC800/600 RDRAM 2 GB Yes/Yes v2.2/33 MHz AGP 4×
860 Colusa 82860 (MCH) ICH2 May 2001 Xeon 400 MT/s Yes PC800/600 RDRAM 4 GB (w. 2 repeaters) Yes/Yes v2.2/33 MHz AGP 4×
845 Brookdale 82845 (MCH) ICH2 January 2002 Celeron, Pentium 4 400 MT/s No either DDR 200/266 or PC133 2 GB DDR, 3 GB SDR Yes/Yes v2.2/33 MHz AGP 4×
E7500 Plumas E7500 (MCH) ICH3-S Feb 2002 Xeon 400 MT/s Yes Dual channel DDR 200/266 16 GB Yes/Yes PCI-X
850E Tehama-E 82850E (MCH) ICH2 May 2002 Pentium 4 400/533 MT/s No PC1066/800 RDRAM 2 GB Yes/Yes v2.2/33 MHz AGP 4×
845E Brookdale-E 82845E (MCH) ICH4 May 2002 Celeron, Celeron D, Pentium 4 400/533 MT/s No DDR 200/266 2 GB Yes/Yes v2.2/33 MHz AGP 4× 5.8 W
845GL Brookdale-GL 82845GL (GMCH) ICH4 May 2002 Celeron, Pentium 4 400 MT/s No DDR 266, PC133 2 GB No/No v2.2/33 MHz Integrated 5.1 W (SDRAM),
5.8 W (DDR)[24]
845G Brookdale-G 82845G (GMCH) ICH4 May 2002 Celeron, Celeron D, Pentium 4 400/533 MT/s No DDR 266, PC133 2 GB No/No v2.2/33 MHz AGP 4× & Intel Extreme Graphics 5.1 W (SDRAM),
5.7 W (DDR)[24]
845GE Brookdale-GE 82845GE (GMCH) ICH4 October 2002 Celeron, Pentium 4 400/533 MT/s No DDR 266/333 2 GB No/No v2.2/33 MHz AGP 4× & integrated 6.3 W
845PE Brookdale-PE 82845PE (MCH) ICH4 October 2002 Celeron, Pentium 4 400/533 MT/s No DDR 266/333 2 GB No/No v2.2/33 MHz AGP 4× 5.6 W
845GV Brookdale-GV 82845GV (GMCH) ICH4 October 2002 Celeron, Celeron D, Pentium 4 400/533 MT/s No DDR 266/333, PC133 2 GB No/No v2.2/33 MHz integrated 5.1 W (SDRAM),
5.7 W (DDR)[24]
E7505 Placer E7505 (MCH) ICH4 Nov 2002 Xeon 400/533 MT/s Yes DDR 200/266 16 GB Yes/Yes AGP 8x
E7205 Granite Bay E7205 (MCH) ICH4 Nov 2002 Pentium 4 400/533 MT/s No Dual channel DDR 200/266 4 GB Yes/Yes AGP 8x
E7501 Plumas 533 E7500 (MCH) ICH3-S Dec 2002 Xeon, Pentium M 400/533 MT/s Yes DDR 200/266 16 GB Dual channel, 8GB single channel Yes/Yes PCI-X
875P Canterwood 82875P (MCH) ICH5/ICH5R April 2003 Pentium 4, Pentium Extreme Edition, Celeron, Celeron D, Xeon 400/533/800 MT/s Yes Dual channel DDR 266/333/400 4 GB Yes/Yes v2.3/33 MHz AGP 8× 12.1 W
865G Springdale 82865G (GMCH) ICH5/ICH5R May 2003 Pentium 4, Pentium Extreme Edition, Celeron, Celeron D 400/533/800 MT/s No Dual channel DDR 266/333/400 4 GB No/No v2.3/33 MHz AGP 8× & Intel Extreme Graphics 2 12.9 W
865P Springdale-P 82865P ICH5 May 2003 Pentium 4, Celeron D 400/533 MT/s No Dual channel DDR 266/333 4 GB No/No v2.3/33 MHz AGP 8× 10.3 W
865PE Springdale-PE 82865PE ICH5/ICH5R May 2003 Pentium 4, Pentium D, Pentium Extreme Edition, Celeron, Celeron D 400/533/800 MT/s No Dual channel DDR 266/333/400 4 GB No/No v2.3/33 MHz AGP 8× 11.3 W
848P Breeds Hill 82848P (MCH) ICH5/ICH5R August 2003 Celeron, Celeron D, Pentium 4 400/533/800 MT/s No DDR 266/333/400 2 GB No/No v2.3/33 MHz AGP 8× 8.1 W
865GV Springdale-GV 82865GV (GMCH) ICH5/ICH5R September 2003 Pentium 4, Pentium D, Pentium Extreme Edition, Celeron, Celeron D 400/533/800 MT/s No Dual channel DDR 266/333/400 4 GB No/No v2.3/33 MHz Integrated

Summary:

  • 845 (Brookdale)
    • two distinct versions 845 MCH for SDR and 845 MCH for DDR[25][26]
  • 875P (Canterwood)
  • 865PE (Springdale)
    • 875P without PAT, though it was possible to enable PAT in some early revisions. Also lacks ECC Memory support.
    • Sub-versions:
      • 865P - The same as 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.

Pentium 4-M/Pentium M/Celeron M mobile chipsets

Chipset Code name Part numbers South bridge Release date Processors FSB SMP Memory types Max. memory Parity/ECC PCI Type Graphics TDP
845MP Brookdale-M 82845 (MCH) ICH3-M March 2002 Mobile Celeron, Pentium 4-M 400 MT/s No DDR 200/266 1 GB No/No v2.2/33 MHz AGP 4×
845MZ Brookdale-MZ 82845 (MCH) ICH3-M March 2002 Mobile Celeron, Pentium 4-M 400 MT/s No DDR 200 1 GB No/No v2.2/33 MHz AGP 4×
852GM Montara-GM 82852GM (GMCH) ICH4-M Q2, '04 Pentium 4-M, Celeron, Celeron M 400 MT/s No DDR 200/266 1 GB No/No v2.2/33 MHz Integrated 32-bit 3D Core @ 133 MHz 3.2 W
852GMV Montara-GM 82852GMV (GMCH) ICH4-M Pentium 4-M, Celeron, Celeron M 400 MT/s No DDR 200/266 1 GB No/No v2.2/33 MHz Integrated 32-bit 3D Core @ 133 MHz 3.2 W
852PM Montara-GM 82852PM (MCH) ICH4-M Pentium 4-M, Celeron, Celeron D 400/533 MT/s No DDR 200/266/333 2 GB No/No v2.2/33 MHz AGP 1x/2×/4× 5.7 W
852GME Montara-GM 82852GME (GMCH) ICH4-M Q4, '03 Pentium 4-M, Celeron, Celeron D 400/533 MT/s No DDR 200/266/333 2 GB No/No v2.2/33 MHz Integrated Extreme Graphics 2 graphics core 5.7 W
854 [27] 82854 (GMCH) ICH4-M March 2005 Celeron M ULV 400 MT/s No DDR 266/333 2 GB No/No v2.2/33 MHz Integrated Extreme Graphics 2 graphics core 5.7 W
855GM Montara-GM 82855GM (GMCH) ICH4-M March 2003 Pentium M, Celeron M 400 MT/s No DDR 200/266 2 GB No/No v2.2/33 MHz Integrated Extreme Graphics 2 graphics core 3.2 W
855GME Montara-GM 82855GME (MCH) ICH4-M March 2003 Pentium M, Celeron M 400 MT/s No DDR 200/266/333 2 GB No/No v2.2/33 MHz Integrated Extreme Graphics 2 graphics core 4.3 W
855PM Odem 82855PM (MCH) ICH4-M March 2003 Pentium M, Celeron M 400 MT/s No DDR 200/266/333 2 GB No/No v2.2/33 MHz AGP 2×/4× 5.7 W

Southbridge 8xx chipsets

Main article: I/O Controller Hub
Chipset Part Number ATA SATA RAID Level USB PCI
ICH 82801AA UDMA 66/33 No No Rev 1.1, 2 Ports Rev 2.2, 6 PCI slots
ICH0 82801AB UDMA 33 No No Rev 1.1, 2 Ports Rev 2.2, 4 PCI slots
ICH2 82801BA UDMA 100/66/33 No No Rev 1.1, 4 Ports Rev 2.2, 6 PCI slots
ICH2-M 82801BAM UDMA 100/66/33 No No Rev 1.1, 2 Ports Rev 2.2, 2 PCI slots
ICH3-S 82801CA UDMA 100/66/33 No No Rev 1.1, 6 Ports Rev 2.2, 6 PCI slots
ICH3-M 82801CAM UDMA 100/66/33 No No Rev 1.1, 2 Ports Rev 2.2, 2 PCI slots
ICH4 82801DB UDMA 100/66/33 No No Rev 2.0, 6 Ports Rev 2.2, 6 PCI slots
ICH4-M 82801DBM UDMA 100/66/33 No No Rev 2.0, 4 Ports Rev 2.2, 3 PCI slots
ICH5 82801EB UDMA 100/66/33 SATA 1.5 Gbit/s, 2 Ports No Rev 2.0, 6 Ports Rev 2.3, 6 PCI slots
ICH5R 82801ER UDMA 100/66/33 SATA 1.5 Gbit/s, 2 Ports RAID0, RAID1 Rev 2.0, 6 Ports Rev 2.3, 6 PCI slots
ICH5-M 82801EBM UDMA 100/66/33 No No Rev 2.0, 4 Ports Rev 2.3, 4 PCI slots
6300ESB 6300ESB UDMA 100/66/33 SATA 1.5 Gbit/s, 2 Ports RAID0, RAID1 Rev 2.0, 4 Ports Rev 2.2, 4 PCI slots, Rev 1.0, 2 PCI-X slots + 2 PCI-X devices

9xx chipsets and 3/4 Series chipsets

Pentium 4/Pentium D/Pentium EE chipsets

All Chipsets listed in the table below:

  • Do not support SMP
  • Support (-R and -DH) variants for South Bridges
Chipset Code Name Part numbers South Bridge Release Date Supported Processors FSB (MT/s) Memory Types Max. Memory Parity/ECC Graphics TDP
910GL Grantsdale-GL 82910GL (GMCH) ICH6 September 2004 Pentium 4, Celeron, Celeron D 533 DDR 333/400 2 GB No/No Integrated GMA 900 16.3 W
915P Grantsdale 82915P (MCH) ICH6 June 2004 Pentium 4, Celeron D 533/800
  • DDR 333/400
  • DDR2 400/533
 4 GB No/No PCI Express 16× 16.3 W
915PL Grantsdale-PL 82915PL (MCH) ICH6 March 2005 Pentium 4, Celeron D 533/800 DDR 333/400 2 GB No/No PCI Express 16× 16.3 W
915G Grantsdale-G 82915G (GMCH) ICH6 June 2004 Pentium 4, Celeron D 533/800
  • DDR 333/400
  • DDR2 400/533
 4 GB No/No
  • PCI Express 16×
  • Integrated GMA 900
 16.3 W
915GL Grantsdale-GL 82915GL (GMCH) ICH6 March 2005 Pentium 4, Celeron D 533/800 DDR 333/400 4 GB No/No Integrated GMA 900 16.3 W
915GV Grantsdale-GV 82915GV (GMCH) ICH6 June 2004 Pentium 4, Celeron D 533/800
  • DDR 333/400
  • DDR2 400/533
 4 GB No/No Integrated GMA 900 16.3 W
925X Alderwood 82925X (MCH) ICH6 June 2004 Pentium 4, Pentium 4 EE 800 DDR2 400/533 4 GB Yes/Yes PCI Express 16× 12.3 W
925XE Alderwood-XE 82925XE (MCH) ICH6 November 2004 Pentium 4, Pentium 4 EE 800/1066 DDR2 400/533 4 GB Yes/Yes PCI Express 16× 13.3 W
955X Lakeport-X 82955X (MCH) ICH7/ICH7R April 2005 Pentium 4, Pentium 4 EE, Pentium D, Pentium XE 800/1066 DDR2 533/667 8 GB Yes/Yes PCI Express 16× 13.5 W
945P Lakeport 82945P (MCH) ICH7/ICH7R May 2005 Pentium 4, Pentium D, Celeron D, Core 2 Extreme, Core 2 Duo 533/800/1066 DDR2 400/533/667 4 GB[*] No/No PCI Express 16× 15.2 W
945PL Lakeport-PL 82945PL (MCH) ICH7 March 2006 Pentium 4, Pentium D, Celeron D 533/800 DDR2 400/533 2 GB[*] No/No PCI Express 16× 15.2 W
945G Lakeport-G 82945G (GMCH) ICH7/ICH7R May 2005 Pentium 4, Pentium D, Celeron D, Core 2 Extreme, Core 2 Duo 533/800/1066 DDR2 400/533/667 4 GB[*] No/No
  • PCI Express 16×
  • Integrated GMA 950
 22.2 W

[*] Remapping of PCIE/APIC memory ranges not supported,[28] some physical memory might not be accessible (e.g. limited to 3.5 GB or similar).

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:
      • 945GZ - Same feature reductions as 945PL but with an integrated GMA 950. Supports 533/800 MT/s FSB and DDR-II 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.

Pentium M/Celeron M mobile chipsets

Chipset Code Name Part numbers South Bridge Release Date Supported Processors FSB Memory Types Max. Memory Parity/ECC Graphics TDP
910GML Alviso-GM 82910GML (GMCH) ICH6-M January 2005 Celeron M 400 MT/s DDR 333, DDR2 400 2 GB No/No Integrated GMA 900 6 W
915GMS Alviso-GM 82915GMS (GMCH) ICH6-M January 2005 Pentium M, Celeron M 400 MT/s DDR2 400 2 GB No/No Integrated GMA 900 4.8 W
915GM Alviso-GM 82915GM (GMCH) ICH6-M January 2005 Pentium M, Celeron M 400/533 MT/s DDR 333, DDR2 400/533 2 GB No/No Integrated GMA 900 6 W
915PM Alviso 82915PM (MCH) ICH6-M January 2005 Pentium M, Celeron M 400/533 MT/s DDR 333, DDR2 400/533 2 GB No/No PCI Express 16× 5.5 W

Core/Core 2 mobile chipsets

Chipset Code name Part numbers South bridge Release date Processors supported (official) FSB Memory types Max. memory Graphics TDP
940GML Calistoga 82940GML (GMCH) ICH7-M January 2006 Celeron M 533 MT/s DDR2 400/533 2 GB Integrated GMA 950 graphics core (Max. 166 MHz 3D Render) 7 W
943GML Calistoga 82943GML (GMCH) ICH7-M January 2006 Celeron M, Core Solo, Pentium Dual-Core[b] 533 MT/s DDR2 400/533 2 GB Integrated GMA 950 graphics core (Max. 200 MHz 3D Render)
945GMS Calistoga 82945GMS (GMCH) ICH7-M January 2006 Core 2 Duo, Core Duo, Pentium Dual-Core, Core Solo, Celeron M 533/667 MT/s DDR2 400/533 2 GB Integrated GMA 950 graphics core (Max. 166 MHz 3D Render) 7 W
945GSE Calistoga 82945GSE (GMCH) ICH7-M Q2, '08 Intel Atom 533/667 MT/s DDR2 400/533 2 GB Integrated GMA 950 graphics core (Max. 166 MHz 3D Render) 6 W
945GM/E Calistoga 82945GM/E (GMCH) ICH7-M January 2006 Core 2 Duo, Core Duo, Pentium Dual-Core, Core Solo, Celeron M 533/667 MT/s DDR2 400/533/667 4 GB* Integrated GMA 950 graphics core (Max. 250 MHz 3D Render) 7 W
945PM Calistoga 82945PM (MCH) ICH7-M January 2006 Core 2 Duo, Core Duo, Pentium Dual-Core, Core Solo, Celeron M 533/667 MT/s DDR2 400/533/667 4 GB* PCI Express 16× 7 W

[*] Remapping of PCIE/APIC memory ranges not supported,[28] some physical memory might not be accessible (e.g. limited to 3.5 GB or similar).

Core 2 chipsets

All Core 2 Duo 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 P35 chipset family.[29] However, some motherboards still support the older processors.[30]

Chipset Code Name Part numbers South Bridge Release Date Processors Process support Hardware Virtualization (Intel VT-d)[31] FSB Memory types Max. memory Parity/ECC Graphics
945GC[32] Lakeport-GC 82945GC (MCH) ICH7/ICH7R/ICH7-DH 2007.01 (or Q1'05?)[33] Pentium 4, Pentium D, Celeron D, Core 2 Duo, Pentium Dual-Core, Atom Support for 45 nm No 533/800 MT/s DDR2 533/667 2 GB[34] [*] No/No
  • 1 PCI Express 16×
  • Integrated GMA 950 graphics
945GZ Lakeport-GZ 82945GZ (GMCH) ICH7 2005.06 Pentium 4, Pentium D, Celeron D, Core 2 Duo, Pentium Dual-Core Support for 65 nm No 533/800 MT/s DDR2 400/533 2 GB (or 4 GB shrunk to 3.27 GB)[35][*] No/No
  • some motherboards have PCIe ×16 @×4 from ICH7[36]
  • Integrated GMA 950
946PL Lakeport-PL 82946PL (MCH) ICH7/ICH7R 2006.07 Pentium 4, Pentium D, Celeron D, Core 2 Duo, Pentium Dual-Core Support for 65 nm No 533/800 MT/s DDR2 533/667 4 GB No/No PCI Express 16×
946GZ Lakeport-GZ 82946GZ (GMCH) ICH7/ICH7R 2006.07 Pentium 4, Pentium D, Celeron D, Core 2 Duo, Pentium Dual-Core Support for 65 nm No 533/800 MT/s DDR2 533/667 4 GB No/No
975X Glenwood 82975X (MCH)[37] ICH7/ICH7R/ICH7-DH 2005.11 Pentium D, Core 2 Quad, Core 2 Duo, Pentium Dual-Core Support for 65 nm
45 nm unofficial2		 No 533/667/800/1066 MT/s DDR2 533/667/8003 8 GB Yes/Yes
  • 1 PCI Express 161×
  • 1 PCI Express 8×
P965 Broadwater(P) 82P965 (MCH) ICH8/ICH8R/ICH8-DH 2006.06 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 65 nm No 533/800/1066 MT/s DDR2 533/667/800 8 GB No/No
  • PCI Express 16×
  • PCI Express 4×
G965 Broadwater(GC) 82G965 (GMCH) ICH8/ICH8R/ICH8-DH 2006.06 Pentium Dual-Core/Core 2 Duo Support for 65 nm No 533/800/1066 MT/s DDR2 533/667/800 8 GB No/No
  • PCI Express 16×
  • Integrated GMA X3000 graphics
Q965 Broadwater(G) 82Q965 (GMCH) ICH8/ICH8R/ICH8-DH 2006.06 Pentium Dual-Core/Core 2 Duo Support for 65 nm No 533/800/1066 MT/s DDR2 533/667/800 8 GB No/No
  • PCI Express 16×
  • Integrated GMA 3000 graphics
  • Supports ADD2 Card
P31 Bearlake (P) 82P31 (MCH) ICH7 2007.08 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066 MT/s DDR2 667/800 4 GB No/No
  • 1 PCI Express 16× 1.1
P35 Bearlake (P+) 82P35 (MCH) ICH9/ICH9R/ICH9-DH 2007.06 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR2 or DDR3 667/800/1066 8 GB No/No
  • 1 PCI Express 16× 1.1
  • 1 PCI Express 4× 1.1
G31 Bearlake (G) 82G31 (GMCH) ICH7 2007.08 Core 2 Quad/Core 2 Duo/Pentium Dual-Core Support for 45 nm No 800/1066/1333 MT/s DDR2 667/800 4 GB No/No
  • 1 PCI Express 16× 1.1
  • Integrated GMA 3100 graphics
G33[38] Bearlake (G+) 82G33 (GMCH) ICH9/ICH9R/ICH9-DH 2007.06 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR2 667/800
DDR3 800/1066		 8 GB
4 GB		 No/No
  • 1 PCI Express 16× 1.1

Integrated GMA 3100 with:

G35[39] Bearlake[40] 82G35 (GMCH) ICH9/ICH9R/ICH9-DH 2007.08 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR2 667/800[41][42] 8 GB No/No
  • 1 PCI Express 16× 1.1

Integrated GMA X3500 with:

Q33 Bearlake (QF) 82Q33 (GMCH) ICH9/ICH9R 2007.06 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR2 667/800 8 GB No/No
  • 1 PCI Express 16× 1.1

Integrated GMA 3100

Q35 Bearlake (Q) 82Q35 (GMCH) ICH9/ICH9R/ICH9-DO 2007.06 Pentium Dual-Core/Core 2 Quad/Core 2 Duo Support for 45 nm Yes4 800/1066/1333 MT/s DDR2 667/800 8 GB No/No
  • 1 PCI Express 16× 1.1

Integrated GMA 3100

X38 Bearlake (X) 82X38 (MCH) ICH9/ICH9R/ICH9-DH 2007.09 [43] Core 2 Quad/Core 2 Duo/Core 2 Extreme Support for 45 nm Yes4 800/1066/1333 MT/s[44] DDR3 800/1066/1333
DDR2 667/800/1066		 8 GB
16 GB		 No/DDR2 only
  • 2 PCI Express 16× 2.0
X48 Bearlake (X) 82X48 (MCH) ICH9/ICH9R/ICH9-DH 2008.03 Core 2 Quad/Core 2 Duo/Core 2 Extreme Support for 45 nm Yes4 800/1066/1333/1600 MT/s DDR3 1066/1333/1600
DDR2 533/667/800/1066		 8 GB
16 GB		 No/DDR2 only
  • 2 PCI Express 16× 2.0
P43 Eaglelake (P) 82P43 (MCH) ICH10/ICH10R 2008.06 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800		 8 GB
16 GB		 No/No
  • 1 PCI Express 16× 2.0
P45 Eaglelake (P+) 82P45 (MCH) ICH10/ICH10R 2008.06 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066/1333
DDR2 667/800/1066		 8 GB
16 GB		 No/No
  • 1 PCI Express 16× 2.0
  • 2 PCI Express 8× 2.0
G41 Eaglelake (G) 82G41 (GMCH) ICH7 2008.09 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800		 4 GB
8 GB		 No/No
  • 1 PCI Express 16× 1.1
  • Integrated GMA X4500 graphics
G43 Eaglelake (G) 82G43 (GMCH) ICH10/ICH10R 2008.06 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800		 8 GB
16 GB		 No/No
  • 1 PCI Express 16× 2.0
  • Integrated GMA X4500 graphics
G45 Eaglelake (G+) 82G45 (GMCH) ICH10/ICH10R 2008.06 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800[45]		 8 GB
16 GB		 No/No
  • 1 PCI Express 16× 2.0
  • Integrated GMA X4500HD graphics
B43 Eaglelake (B) 82B43 (GMCH) ICH10D 2008.12 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800		 16 GB No/No
  • 1 PCI Express 16× 2.0
  • Integrated GMA X4500 graphics
Q43 Eaglelake (Q) 82Q43 (GMCH) ICH10/ICH10R/ICH10D 2008.08 Core 2 Quad/Core 2 Duo Support for 45 nm No 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800[46]		 8 GB
16 GB		 No/No
  • 1 PCI Express 16× 2.0
  • Integrated GMA X4500 graphics
Q45 Eaglelake (Q) 82Q45 (GMCH) ICH10/ICH10R/ICH10-DO 2008.08 Core 2 Quad/Core 2 Duo Support for 45 nm Yes4 800/1066/1333 MT/s DDR3 800/1066
DDR2 667/800[47]		 8 GB
16 GB		 No/No

[*] Remapping of PCIE/APIC memory ranges not supported,[28] some physical memory might not be accessible (e.g. limited to 3.5 GB or similar).

Summary:

  • 975X (Glenwood)
    • Update of 955, with support for ATI Crossfire Dual Graphics systems and 65 nm processors, including Core 2 Duo.
  • P965 (Broadwater)
    • Update on 945P, no native PATA support, improved memory controller with support for DDR-II at 800 MHz and formal 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 instead of GMA X3000. Supports an ADD2 card to add a second display.
    • Sub-versions:
      • Q963 - Q965 without an external graphics interface or support for ADD2.
  • 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 chips is dropped with this chipset.[29]
  • G33 (BearlakeG)[38]
    • 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.[39]
  • 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 and only supporting 4 GB RAM, no 1333 MT/s FSB nor DDR3 support.
  • G31 (BearlakeG)
    • A version of P31 with a GMA 3100 integrated graphics core, but supports a 1333 MT/s FSB with Core 2 Duo processors; Core 2 Quad processors are supported up to 1066 MT/s.[48]
  • P45 (Eaglelake)
    • Update of P35, with PCIe 2.0, Hardware Virtualization, Extreme Memory Profile (XMP) and support for ATI Crossfire (8x+8x).
    • Sub-versions:
      • P43 - P45 without Crossfire support and no DDR2-1066/DDR3-1333 support.
  • G45 (EaglelakeG)
    • A version of P45 that has a GMA X4500HD integrated graphics core. Also 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.
  • G41 (EaglelakeG)
    • Update of G31 with a GMA X4500 integrated graphics core and DDR3 800/1066 support.

[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] 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.

[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 (i series) moving the MCH from the motherboard to the processor package, making only certain i series CPUs support VT-d.

Core 2 mobile chipsets

Chipset Code name Part numbers South bridge Release date Processors supported (official) FSB Memory types Max. memory Graphics TDP
GL960 Crestline 82960GL (GMCH) ICH8-M May 2007 Celeron M, Pentium Dual-Core 533  MT/s DDR2 533/667 3 GB Integrated GMA X3100 graphics core (Max. 400 MHz 3D Render) 13.5 W
GM965 Crestline 82965GM (GMCH) ICH8-M May 2007 Core 2 Duo 533/667/800 MT/s DDR2 533/667 4 GB/8 GB1 Integrated GMA X3100 graphics core (Max. 500 MHz 3D Render) 13.5 W
PM965 Crestline 82965PM (MCH) ICH8-M May 2007 Core 2 Duo 533/667/800 MT/s DDR2 533/667 4 GB/8 GB1 PCIe 16× 8 W
GL40 Cantiga 82GL40 (GMCH) ICH9-M Sep 2008 Core 2 Duo, Celeron, Celeron M, Pentium Dual-Core 667/800 MT/s DDR2 667/800, DDR3 667/800 8 GB Integrated GMA X4500HD graphics core (Max. 400 MHz 3D Render) 12 W
GS40 Cantiga 82GS40 (GMCH) ICH9-M Sep 2008 Core 2 Duo, Celeron, Celeron M?, Pentium Dual-Core 667?/800 MT/s DDR2 667/800, DDR3 667/800 4 GB Integrated GMA X4500HD graphics core (Max. 400 MHz 3D Render) 12 W
GS45 Cantiga 82GS45 (GMCH) (For CULV) ICH9-M Sep 2008 Core 2 Solo, Core 2 Duo, Core 2 Extreme, Celeron M 800/1066 MT/s DDR2 667/800, DDR3 667/800/1066 8 GB Integrated GMA X4500HD graphics core (Max. 533 MHz 3D Render) 7 W (low power mode), 8 W (HD playback mode), 12 W (Full performance mode)
GM45 Cantiga 82GM45 (GMCH) ICH9-M Sep 2008 Core 2 Duo, Core 2 Extreme, Celeron M 667/800/1066 MT/s DDR2 667/800, DDR3 667/800/1066 8 GB Integrated GMA X4500HD graphics core (Max. 533 MHz 3D Render) 12 W
PM45 Cantiga 82PM45 (MCH) ICH9-M Sep 2008 Core 2 Duo, Core 2 Extreme 667/800/1066 MT/s DDR2 667/800, DDR3 667/800/1066 8 GB PCIe 16× 7 W

[1] Officially only 4GB is supported. Unofficially many laptops with this chipset support 8GB.

Southbridge 9xx and 3/4 Series chipsets

Main article: I/O Controller Hub
Chipset Part Number Parallel ATA Serial ATA RAID Level USB TDP
ICH6 82801FB UDMA 100/66/33 SATA 1.5 Gbit/s, 4 Ports No Rev 2.0, 6 Ports 3.8 W
ICH6R 82801FR UDMA 100/66/33 SATA 1.5 Gbit/s, 4 Ports RAID0, RAID1, Matrix RAID Rev 2.0, 6 Ports 3.8 W
ICH6-M 82801FBM UDMA 100/66/33 SATA 1.5 Gbit/s, 2 Ports No Rev 2.0, 4 Ports 3.8 W
ICH7 82801GB UDMA 100/66/33 SATA 3.0 Gbit/s, 4 Ports No Rev 2.0, 8 Ports 3.3 W
ICH7R 82801GR UDMA 100/66/33 SATA 3.0 Gbit/s, 4 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 8 Ports 3.3 W
ICH7DH 82801GDH UDMA 100/66/33 SATA 3.0 Gbit/s, 4 Ports RAID0, RAID1, Matrix RAID Rev 2.0, 8 Ports 3.3 W
ICH7-M 82801GBM UDMA 100/66/33 SATA 1.5 Gbit/s, 2 Ports No Rev 2.0, 4 Ports 3.3 W
ICH7-M DH 82801GHM UDMA 100/66/33 SATA 3.0 Gbit/s, 4 Ports RAID0, RAID1, Matrix RAID Rev 2.0, 4 Ports 3.3 W
ICH8 82801HB No SATA 3.0 Gbit/s, 4 Ports No Rev 2.0, 10 Ports 3.7 W
ICH8R 82801HR No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 10 Ports 3.7 W
ICH8DH 82801HH No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 10 Ports 3.7 W
ICH8DO 82801HO No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 10 Ports 3.7 W
ICH8M 82801HM UDMA 100/66/33 SATA 3.0 Gbit/s, 3 Ports No Rev 2.0, 10 Ports 2.4 W
ICH8M-E 82801HEM UDMA 100/66/33 SATA 3.0 Gbit/s, 3 Ports RAID0, RAID1, Matrix RAID Rev 2.0, 10 Ports 2.4 W
ICH9 82801IB No SATA 3.0 Gbit/s, 4 Ports No Rev 2.0, 12 Ports 4.3 W
ICH9R 82801IR No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 12 Ports 4.3 W
ICH9DH 82801IH No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 12 Ports 4.3 W
ICH9DO 82801IO No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 12 Ports 4.3 W
ICH9M 82801IBM No SATA 3.0 Gbit/s, 4 Ports No Rev 2.0, 8 Ports 2.5 W
ICH9M-E 82801IEM No SATA 3.0 Gbit/s, 4 Ports RAID0, RAID1, Matrix RAID Rev 2.0, 8 Ports 2.5 W
ICH10 82801JB No SATA 3.0 Gbit/s, 6 Ports No Rev 2.0, 12 Ports 4.5 W
ICH10R 82801JR No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 12 Ports 4.5 W
ICH10D 82801JH No SATA 3.0 Gbit/s, 6 Ports No Rev 2.0, 12 Ports 4.5 W
ICH10DO 82801JO No SATA 3.0 Gbit/s, 6 Ports RAID0, RAID1, RAID5, RAID10, Matrix RAID Rev 2.0, 12 Ports 4.5 W

5/6/7/8/9 Series chipsets

Main article: Intel 5 Series
See also: Sandy Bridge chipsets (6 Series), Ivy Bridge chipsets (7 Series), and Haswell chipsets (8 Series)

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.

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.[49] Otherwise these chipsets do not enable unbuffered ECC functionality.

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.[50] 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.[51]

LGA 1156

Chipsets supporting LGA 1156 CPUs (Lynnfield and Clarkdale).

Chipset Code Name sSpec Number Part numbers Release Date Bus Interface Bus Speed PCI Express lanes PCI SATA USB FDI support TDP
P55 Ibex Peak SLH24 (B3),
SLGWV (B2)		 BD82P55 (PCH) Sep 2009 DMI 2 GB/s 8 PCIe 2.0 at 2.5 GT/s Yes 3 Gbit/s, 6 Ports Rev 2.0, 14 Ports No 4.7 W
H55 Ibex Peak SLGZX(B3) BD82H55 (PCH) Jan 2010 DMI 2 GB/s 6 PCIe 2.0 at 2.5 GT/s Yes 3 Gbit/s, 6 Ports Rev 2.0, 12 Ports Yes 5.2 W
H57 Ibex Peak SLGZL(B3) BD82H57 (PCH) Jan 2010 DMI 2 GB/s 8 PCIe 2.0 at 2.5 GT/s Yes 3 Gbit/s, 6 Ports Rev 2.0, 14 Ports Yes 5.2 W
Q57 Ibex Peak SLGZW(B3) BD82Q57 (PCH) Jan 2010 DMI 2 GB/s 8 PCIe 2.0 at 2.5 GT/s Yes 3 Gbit/s, 6 Ports Rev 2.0, 14 Ports Yes 5.1 W

LGA 1155

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,[52] unlike in the previous LGA 1156 chips.

Chipset Code Name sSpec Number Part numbers Release Date Bus Interface Bus Speed PCI Express lanes PCI SATA USB FDI support TDP
H613 Cougar Point SLH83(B2)
SLJ4B(B3)		 BD82H61 (PCH) February 20, 2011 DMI 2.0 4 GB/s 6 PCIe 2.0[53] No 3 Gbit/s, 4 Ports Rev 2.0, 10 Ports Yes 6.1 W
P673 Cougar Point SLH84(B2) (Recalled)
SLJ4C (B3)		 BD82P67 (PCH) January 9, 2011 DMI 2.0 4 GB/s 8 PCIe 2.0[54] No[55] 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 2.0, 14 Ports[55] No 6.1 W
H673 Cougar Point SLH82(B2) (Recalled)
SLJ49 (B3)		 BD82H67 (PCH) January 9, 2011 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 2.0, 14 Ports Yes 6.1 W
Z683 Cougar Point SLJ4F(B3) BD82Z68 (PCH) May 11, 2011 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 2.0, 14 Ports Yes 6.1 W
Q673 Cougar Point SLH85(B2)
SLJ4D(B3)		 BD82Q67 (PCH) February 20, 2011 DMI 2.0 4 GB/s 8 PCIe 2.0[56] Yes 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 2.0, 14 Ports Yes 6.1 W
Q653 Cougar Point SLH99(B2)
SLJ4E(B3)		 BD82Q65 (PCH) Q2 2011 DMI 2.0 4 GB/s 8 PCIe 2.0 Yes 6 Gbit/s, 1 Port & 3 Gbit/s, 5 Ports Rev 2.0, 14 Ports Yes 6.1 W
B653 Cougar Point SLH98(B2)
SLJ4A(B3)		 BD82B65 (PCH) February 25, 2011 DMI 2.0 4 GB/s 8 PCIe 2.0 Yes 6 Gbit/s, 1 Port & 3 Gbit/s, 5 Ports Rev 2.0, 12 Ports Yes 6.1 W
Z775 Panther Point SLJC7(C1) BD82Z77 (PCH) April 8, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 3.0, 4 Ports & Rev 2.0, 10 ports Yes 6.7 W
Z755 Panther Point SLJ87(C1) BD82Z75 (PCH) April 8, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 3.0, 4 Ports & Rev 2.0, 10 ports Yes 6.7 W
H775 Panther Point SLJ88(C1) BD82H77 (PCH) April 8, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 3.0, 4 Ports & Rev 2.0, 10 ports Yes 6.7 W
Q775 Panther Point SLJ83(C1) BD82Q77 (PCH) May 13, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 Yes 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports Rev 3.0, 4 Ports & Rev 2.0, 10 ports Yes 6.7 W
Q755 Panther Point SLJ84(C1) BD82Q75 (PCH) May 13, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 Yes 6 Gbit/s, 1 Port & 3 Gbit/s, 5 Ports Rev 3.0, 4 Ports & Rev 2.0, 10 ports Yes 6.7 W
B755 Panther Point SLJ85(C1) BD82B75 (PCH) May 13, 2012 DMI 2.0 4 GB/s 8 PCIe 2.0 Yes 6 Gbit/s, 1 Port & 3 Gbit/s, 5 Ports Rev 3.0, 4 Ports & Rev 2.0, 8 ports Yes 6.7 W

LGA 1150

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.[57] Broadwell CPUs are supported only by 9-Series chipsets, which are usually referred to as Wildcat Point.[58]

The C1 stepping of the Lynx Point chipset contains a bug – 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.[59]

Chipset Code Name sSpec Number Part numbers Release Date Bus Interface Bus Speed PCI Express lanes PCI SATA USB FDI support TDP PCIe M.2 Support
H81 Lynx Point SR13B(C1)
SR177(C2)		 DH82H81 (PCH) June 2013 DMI 2.0 4 GB/s 6 PCIe 2.0 No 6 Gbit/s (two ports) and 3 Gbit/s (two ports) 3.0 (two ports) and 2.0 (eight ports) Yes 4.1 W No
Q85 Lynx Point SR138(C1)
SR174(C2)		 DH82Q85 (PCH) June 2013 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (four ports) and 3 Gbit/s (two ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W No
B85 Lynx Point SR13C(C1)
SR178(C2)		 DH82B85 (PCH) June 2013 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (four ports) and 3 Gbit/s (two ports) 3.0 (four ports) and 2.0 (eight ports) Yes 4.1 W No
Q87 Lynx Point SR137(C1)
SR173(C2)		 DH82Q87 (PCH) June 2013 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (six ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W No
H87 Lynx Point SR139(C1)
SR175(C2)		 DH82H87 (PCH) June 2013 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (six ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W No
Z87 Lynx Point SR13A(C1)
SR176(C2)		 DH82Z87 (PCH) June 2013 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (six ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W No
Z97 Wildcat Point SR1JJ DH82Z97 (PCH) May 2014 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (six ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W Yes
H97 Wildcat Point SR1JK DH82H97 (PCH) May 2014 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s (six ports) 3.0 (six ports) and 2.0 (eight ports) Yes 4.1 W Yes

LGA 1151

Chipsets supporting LGA 1151 CPUs (Skylake).[60][61]

Chipset Code Name sSpec Number Part numbers Release Date Bus Interface Bus Speed PCI Express lanes PCI SATA SATAe USB FDI support PCIe M.2 Support TDP
B150 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 8 PCIe 3.0 No 6 Gbit/s, 6 Ports Up to 1 Rev 3.0, 10 Ports & Rev 2.0, 4 ports ? None ?
H110 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 6 PCIe 2.0 No 6 Gbit/s, 4 Ports None Rev 3.0, 4 Ports & Rev 2.0, 6 ports ? None ?
H170 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 16 PCIe 3.0 No 6 Gbit/s, 6 Ports Up to 2 Rev 3.0, 8 Ports & Rev 2.0, 6 ports ? 2 ports ?
Q150 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 10 PCIe 3.0 No 6 Gbit/s, 6 Ports Up to 1 Rev 3.0, 8 Ports & Rev 2.0, 6 ports ? None ?
Q170 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 20 PCIe 3.0 No 6 Gbit/s, 6 Ports Up to 3 Rev 3.0, 10 Ports & Rev 2.0, 4 ports ? 3 ports ?
Z170 Sunrise Point ? ? (PCH) H2 2015 DMI 3.0 8 GB/s 20 PCIe 3.0 No 6 Gbit/s, 6 Ports Up to 3 Rev 3.0, 10 Ports & Rev 2.0, 4 ports ? 3 ports ?
? Union Point ? ? (PCH) 2016 DMI 3.0 8 GB/s ? PCIe 4.0 No ? ? ? ? ? ?

LGA 1366, LGA 2011, and LGA 2011-v3

Chipsets supporting LGA 1366, LGA 2011, and LGA 2011-v3 CPUs.

Chipset Code Name sSpec Number Part numbers Release Date Socket Bus Interface Bus Speed PCI Express lanes PCI SATA USB FDI support TDP
X58 (I/O hub)1 Tylersburg SLGBT (B2),
SLGMX (B3),
SLH3M (C2)		 AC82X58 (IOH) Nov 2008 LGA 1366 QPI Up to 12.8 GB/s 36 PCIe 2.0 at 5 GT/s (IOH);
6 PCIe 1.1 (ICH)		 Yes 3 Gbit/s, 6 Ports Rev 2.0, 12 Ports No 28.6 W2
X794 Patsburg SLJHW (C0),[62]
SKJN7 (C1)[63]		 BD82X79 (PCH)[64] November 14, 2011 LGA 2011 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 2 Ports & 3 Gbit/s, 4 Ports[65] Rev 2.0, 14 Ports No 7.8 W
X996 Wellsburg SLKDE (B1) DH82031PCH (PCH) August 29, 2014 LGA 2011-v3 DMI 2.0 4 GB/s 8 PCIe 2.0 No 6 Gbit/s, 10 Ports Rev 3.0, 6 Ports & Rev 2.0, 8 ports No 6.5 W
  • 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 mainstream desktop and business platforms. Sandy Bridge CPUs provide 16 PCIe 2.0 lanes for direct GPU connectivity.
  • 4 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 A Ivy Bridge-E CPU or Xeon E-5 series is used.
  • 5 For Ivy Bridge mainstream desktop platform. Ivy Bridge CPUs will provide 16 PCIe 3.0 lanes for direct GPU connectivity and additional 4 PCIe 2.0 lanes.[66]
  • 6 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.

Mobile chipsets

All Core i series mobile chipsets are integrated south bridge.

Chipset Code Name sSpec Number Part numbers Release Date Process support Bus Interface Bus Speed PCI Express lanes SATA USB TDP FDI support
PM55 Ibex Peak-M SLGWN(B2),
SLH23(B3),
SLGWP		 BD82PM55 (PCH)[67] Sep 2009 45 nm, 32 nm DMI 2 GB/s 8 PCIe 2.0 3 Gbit/s, 6 ports Rev 2.0, 14 ports 3.5 W No
HM55 Ibex Peak-M SLGZS(B3) BD82HM55 (PCH)[68] Jan 2010 45 nm, 32 nm DMI 2 GB/s 6 PCIe 2.0 3 Gbit/s, 4 ports Rev 2.0, 12 ports 3.5 W Yes
HM57 Ibex Peak-M SLGZR(B3) BD82HM57 (PCH)[69] Jan 2010 45 nm, 32 nm DMI 2 GB/s 8 PCIe 2.0 3 Gbit/s, 6 ports Rev 2.0, 14 ports 3.5 W Yes
QM57 Ibex Peak-M SLGZQ(B3) BD82QM57 (PCH)[70] Jan 2010 45 nm, 32 nm DMI 2 GB/s 8 PCIe 2.0 3 Gbit/s, 6 ports Rev 2.0, 14 ports 3.5 W Yes
QS57 Ibex Peak-M SLGZV(B3) BD82QS57 (PCH)[71] Jan 2010 45 nm, 32 nm DMI 2 GB/s 8 PCIe 2.0 3 Gbit/s, 6 ports Rev 2.0, 14 ports 3.4 W Yes
HM65 Cougar Point-M SLH9D(B2) (Recalled)
SLJ4P(B3)		 BD82HM65 (PCH)[72] January 9, 2011 32 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 2.0, 12 ports 3.9 W Yes
HM67 Cougar Point-M SLH9C(B2) (Recalled)
SLJ4N(B3)		 BD82HM67 (PCH)[73] January 9, 2011 32 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 2.0, 14 ports 3.9 W Yes
UM67 Cougar Point-M SLH9U(B2)
SLJ4L(B3)		 BD82UM67 (PCH)[74] February 20, 2011 32 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 2.0, 14 ports 3.4 W Yes
QM67 Cougar Point-M SLH9B(B2)
SLJ4M(B3)		 BD82QM67 (PCH)[75] February 20, 2011 32 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 2.0, 14 ports 3.9 W Yes
QS67 Cougar Point-M SLHAG(B2)
SLJ4K(B3)		 BD82QS67 (PCH)[76] February 20, 2011 32 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 2.0, 14 ports 3.4 W Yes
NM70 Panther Point-M SLJTA(C1) BD82NM70 (PCH) August 2012 22 nm DMI 2.0 4 GB/s 4 PCIe 2.0 6 Gbit/s, 1 port & 3 Gbit/s, 3 Ports Rev 3.0, 0 ports & Rev 2.0, 8 ports 4.1 W Yes
HM70 Panther Point-M SJTNV(C1) BD82HM70 (PCH)[77] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 1 port & 3 Gbit/s, 4 ports Rev 3.0, 4 ports & Rev 2.0, 6 ports 4.1 W Yes
HM75 Panther Point-M SLJ8F(C1) BD82HM75 (PCH)[78] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 3.0, 0 ports & Rev 2.0, 12 ports 4.1 W Yes
HM76 Panther Point-M SLJ8E(C1) BD82HM76 (PCH)[79] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 3.0, 4 ports & Rev 2.0, 8 ports 4.1 W Yes
HM77 Panther Point-M SLJ8C(C1) BD82HM77 (PCH)[80] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 3.0, 4 ports & Rev 2.0, 10 ports 4.1 W Yes
UM77 Panther Point-M SLJ8D(C1) BD82UM77 (PCH)[81] April 8, 2012 22 nm DMI 2.0 4 GB/s 4 PCIe 2.0 6 Gbit/s, 1 port & 3 Gbit/s, 3 ports Rev 3.0, 4 ports & Rev 2.0, 6 ports 3.0 W Yes
QM77 Panther Point-M SLJ8A(C1) BD82QM77 (PCH)[82] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 3.0, 4 ports & Rev 2.0, 10 ports 4.1 W Yes
QS77 Panther Point-M SLJ8B(C1) BD82QS77 (PCH)[83] April 8, 2012 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 2 ports & 3 Gbit/s, 4 ports Rev 3.0, 4 ports & Rev 2.0, 10 ports 3.0 to 3.6 W Yes
QM87 Lynx Point-M SR13G(C1)
SR17C(C2)		 DH82QM87 (PCH) June 2013 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 4 Ports & 3 Gbit/s, 2 Ports Rev 3.0, 6 ports & Rev 2.0, 8 ports 2.7 W Yes
HM87 Lynx Point-M SR13H(C1)
SR17D(C2)		 DH82HM87 (PCH) June 2013 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 4 Ports & 3 Gbit/s, 2 Ports Rev 3.0, 6 ports & Rev 2.0, 10 ports 2.7 W Yes
HM86 Lynx Point-M SR13J(C1)
SR17E(C2)		 DH82HM86 (PCH) June 2013 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 4 Ports & 3 Gbit/s, 2 Ports Rev 3.0, 5 ports & Rev 2.0, 10 ports 2.7 W Yes
HM97 SR1JN DH82HM97 (PCH) May 2014 22 nm DMI 2.0 4 GB/s 8 PCIe 2.0 6 Gbit/s, 4 Ports & 3 Gbit/s, 2 Ports Rev 3.0, 6 ports & Rev 2.0, 10 ports 2.7 W Yes

Notes

  1. ^ The Pentium Pro, Pentium II/III, and the Celerons based on them are essentially the same design with minor internal revisions and varying cache designs. Because of this, the same chipset can be used for Socket 8, Socket 370, Slot 1, or Slot 2 designs with any CPU in the P6 family. In practice however, newer chipset designs are usually made only for the newer processor packages, and older ones may not be updated to accommodate for recent package designs. In addition, certain chipsets may be implemented in motherboards with different processor packages, much like how the 440FX could be used either with a Pentium Pro (Socket 8) or Pentium II (Slot 1). A new feature for the latest Intel chipsets is hardware virtualization support (Intel VT-d).[22] The chipset support for this technology is not very clear for the moment.[23]
  2. ^ The Intel 82943GML mobile chipset unofficially supports Core Duo, Core 2 Duo, and Pentium Dual Core processors as well as 667 MHz FSB, which is a popular upgrade for many older notebook computers such as certain models of Acer Aspire 3680.

See also

References

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  8. ^ Marshall, Martin (November 14, 1988). "MCA Multiprocessing In the Works at Intel". InfoWorld. p. 1.
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  14. ^ When applied to computer memory (RAM or cache) the quantities KB, MB and GB are defined as: 1 KB = 1024 B, 1 MB = 1024 KB, 1 GB = 1024 MB, consistent with the JEDEC memory standard.
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