Silicon Integrated Systems


Silicon Integrated Systems is a company that manufactures, among other things, motherboard chipsets. The company was founded in 1987 in Hsinchu Science Park, Taiwan.

Business

In the late 1990s, SiS made the decision to invest in their own chip fabrication facilities. At the end of 1999, SiS acquired Rise Technology and its mP6 x86 core technology.

Mainboard chipsets

One of the most famous chipsets produced by SiS was the late 486-age chipset 496/497 which supported PCI bus among older ISA- and VLB-buses. Mainboards using this chipset and equipped with CPUs such as the Intel 80486DX4, AMD 5x86 or Cyrix Cx5x86 processors had performance and compatibility comparable with early Intel Pentium systems in addition to a lower price.
After this late success, SiS continued positioning itself as a budget chipset producer. The company emphasized high integration to minimize the cost to implement their solutions. As such, SiS one-chip mainboard chipsets that included integrated video, such as the Socket 7-based SiS 5596, SiS 5598, and SiS 530 along with the Slot 1-based SiS 620. These were some of the first PC chipsets with such high integration. They allowed entire system solutions to be built with just a mainboard, system RAM, and a CPU.

386 & 486 (Socket 1, 2, 3)

ChipsetRelease DatePart NumbersSouth BridgeSocketProcessorsFSBMemory typesMax. memoryParity/ECCL2 Cache TypeVLB supportPCI support
SiS 310, 320, 3301991SiS 85C310,
SiS 85C320,
SiS 85C330
N/A132-pin PGA386DX25/33/40 MHzFPM32 MB??Async.NoNo
SiS 401/402SiS 85C401,
SiS 85C402
N/A132-pin PGA, Socket 1/2/3386DX, 5V 48625/33/40/50 MHzFPM64 MBParityAsync.No
SiS 406/4111991?SiS 85C406,
SiS 85C411
N/A132-pin PGA, Socket 1/2/3386DX, 5V 48625/33/40/50 MHzFPM64 MBParityAsync.No
SiS 4601993SiS 85C460N/A132-pin PGA, Socket 1/2/3386DX, 5V 48625/33/40/50 MHzFPM64 MBParityAsync.YesNo
SiS 461SiS 85C461N/A132-pin PGA, Socket 1/2/3386DX, 5V 48625/33/40/50 MHzFPM64 MBParityAsync.YesNo
SiS 4711994SiS 85C471N/ASocket 1/2/35 V/3.3 V 486, Am5x86, Cx5x86, Pentium Overdrive25/33/40/50 MHzFPM128 MBParityAsync.YesNo
SiS 496/4971995SiS SiS85C496,
SiS SiS85C497
SiS 497Socket 1/2/35 V/3.3 V 486, Am5x86, Cx5x86, Pentium Overdrive25/33/40/50 MHzFPM, EDO256 MBParityAsync.Yes2.0

Pentium (Socket 4,5,7)

The SiS 530 with SiS 5595 southbridge supported Socket 7, SDRAM 1.5GB max., a bus frequency from 66 MHz to 124 MHz, and can have from 2 to 8 MiB shared memory for an integrated AGP SiS 6306 2D/3D graphics controller. Includes integrated UDMA66 IDE controller. mainboards using the SiS 530 were positioned as cheap office platforms and paired often with low-cost chips from Intel competitors, such as the AMD K6 series or Cyrix 6x86. The graphics controller had Direct3D 6.0 and OpenGL support, although it was a very low-performance product for 3D acceleration.
SiS 540 integrates SiS 300 graphics controller.
ChipsetRelease DatePart NumbersSouth BridgeSocketProcessorsFSBMemory typesMax. memoryMax. cacheableParity/ECCL2 Cache TypePCI supportGraphics SlotIGP
SiS 501/502/5031995SiS 85C501,
SiS 85C502,
SiS 85C503
SiS 503Socket 4
Socket 5/7
Pentium, AMD K5, Cyrix 6x8650/60/66 MHzFPM128 MB128 MBN/AAsync.2.0N/ANo
SiS 5101/5102/51031995SiS 5103Socket 4
Socket 5/7
Pentium, AMD K5, Cyrix 6x8650/60/66 MHzFPM, EDO512 MB512 MBN/AAsync.2.0N/ANo
SiS 5501/5502/55031995SiS 5503Socket 4
Socket 5/7
Pentium, AMD K5, Cyrix 6x8650/60/66 MHzFPM, EDO512 MB?N/AAsync.2.0N/ANo
SiS 5511/5512/55131995SiS 5513Socket 5/7Pentium, AMD K5, Cyrix 6x8650/60/66 MHzFPM, EDO512 MB
1 GB may be possible
?ParityAsync. / Pburst2.1N/ANo
SiS 55711996Northbridge integratedSocket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66/75 MHzFPM, EDO, SDRAM384 MB64 MB?N/AAsync. / Pburst2.1N/ANo
SiS 5596/55131996SiS 5513Socket 5/7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66 MHzFPM, EDO512 MBN/AAsync. / Pburst2.1N/ASiS 5596
SiS 51201997Northbridge integratedSocket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66/75 MHzFPM, EDO, SDRAM384 MB128 MBN/AAsync. / Pburst2.1N/ANo
SiS 5581/55821997Northbridge integratedSocket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66/75 MHzFPM, EDO, SDRAM384 MB128 MBN/AAsync. / Pburst2.1N/ANo
SiS 5591/5592/55951998SiS 5595Socket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66/75 MHzFPM, EDO, SDRAM768 MB256 MBN/AAsync. / Pburst2.1AGP 1×/2×No
SiS 5597/55981997Northbridge integratedSocket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip50/60/66/75 MHzFPM, EDO, SDRAM384 MB128 MBN/AAsync. / Pburst2.1N/ASiS 5598
SiS 5301998SiS 5595Socket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip66/75/83/90/95/100 MHzFPM, EDO, SDRAM1536 MB256 MBN/AAsync. / Pburst2.2N/ASiS 6326
SiS 5401999Northbridge integratedSocket 7Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip66/75/83/90/95/100 MHzSDRAM, VCSDRAM1536 MB512 MBECCAsync. / Pburst2.2N/ASiS 300

Socket 370, Slot 1

ChipsetRelease DateSouth BridgeSocketProcessorsFSBMemory typesMemory busMax. memoryGraphics SlotIGP
SiS 56001998SiS 5595Slot 1Pentium II/III, Celeron66/100 MHzFPM, EDO, SDRAM66/100 MHz SDR1.5 GBAGP 1×/2×No
SiS 6001998SiS 5595Slot 1Pentium II/III, Celeron66/100 MHzFPM, EDO, SDRAM66/100 MHz SDR1.5 GBAGP 1×/2×No
SiS 6201999SiS 5595Slot 1, Socket 370Pentium II/III, Celeron66/100 MHzSDRAM66/100 MHz SDR1.5 GBN/ASiS 6326
SiS 6302000Northbridge integratedSlot 1, Socket 370Pentium II/III, Celeron66/100/133 MHzSDRAM, VCSDRAM66/100/133 MHz SDR1.5 GBN/ASiS305
SiS 630S2000Northbridge integratedSlot 1, Socket 370Pentium II/III, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBAGP 2×/4×SiS305
SiS 630ST2001Northbridge integratedSocket 370Pentium III, Tualatin, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBAGP 2×/4×SiS305
SiS 630E2000Northbridge integratedSlot 1, Socket 370Pentium II/III, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBN/ASiS305
SiS 630ET2001Northbridge integratedSocket 370Pentium III, Tualatin, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBN/ASiS305
SiS 6332001Northbridge integratedSocket 370Pentium III, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBAGP 2×/4×SiS305
SiS 633T2001Northbridge integratedSocket 370Pentium III, Tualatin, Celeron66/100/133 MHzSDRAM66/100/133 MHz SDR1.5 GBAGP 2×/4×SiS305
SiS 6352001Northbridge integratedSocket 370Pentium III, Celeron66/100/133 MHzSDRAM, DDR100/133 MHz SDR, 200/266 MHz DDR1.5 GBAGP 2×/4×No
SiS 635T2001Northbridge integratedSocket 370Pentium III, Tualatin, Celeron66/100/133 MHzSDRAM, DDR100/133 MHz SDR, 200/266 MHz DDR1.5 GBAGP 2×/4×No
SiS 640TNever releasedSiS961, SiS961BSocket 370Pentium III, Tualatin, Celeron66/100/133 MHzSDRAM, DDR100/133 MHz SDR, 200/266 MHz DDR?1.5 GBAGP 2×/4×?SiS315

Socket 478, Socket 775

SiS and ALi were the only two companies initially awarded licenses to produce third party chipsets for the Pentium 4. SiS developed the 648 chipset with this license.
ChipsetRelease DateSouth BridgeSocketProcessorsFSBMemory typesMemory busMax. memoryGraphics SlotIGP
SiS 6452001SiS961, SiS961BSocket 423, Socket 478Pentium 4, Celeron400 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266/333 MHz DDR3 GBAGP 2×/4×No
SiS 645DX2002SiS961, SiS962, SiS962LSocket 478Pentium 4, Celeron400/533 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266/333 MHz DDR3 GBAGP 2×/4×No
SiS 648SiS963, SiS963LSocket 478Pentium 4, Celeron400/533 MHzDDR SDRAM200/266/333 MHz DDR3 GBAGP 4×/8×No
SiS 648FX2003SiS963, SiS963LSocket 478Pentium 4, Pentium 4 EE, Celeron, Celeron D400/533/800 MHzDDR SDRAM200/266/333/400 MHz DDR3 GBAGP 4×/8×No
SiS 649SiS965, SiS965LSocket 775Pentium 4, Pentium 4 EE, Pentium D, Celeron, Celeron D400/533/800 MHzDDR SDRAM, DDR2 SDRAM200/266/333/400 MHz DDR, 400/533 MHz DDR22 GBPCI-E x16No
SiS 649FXSiS966, SiS966LSocket 775Pentium 4, Pentium 4 EE, Pentium D, Celeron, Celeron D400/533/800 MHzDDR SDRAM, DDR2 SDRAM200/266/333/400 MHz DDR, 400/533 MHz DDR22 GBPCI-E x16No
SiS 649DXSiS966, SiS966LSocket 775Pentium 4, Pentium 4 EE, Pentium D, Celeron, Celeron D400/533/800 MHzDDR2 SDRAM400/533 MHz DDR22 GBPCI-E x16No
SiS 6502001SiS961, SiS961BSocket 423, Socket 478Pentium 4, Celeron400 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266 MHz DDR3 GBAGP 2×/4×SiS315
SiS 650GXSiS961, SiS961BSocket 423, Socket 478Pentium 4, Celeron400 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266/333 MHz DDR3 GBAGP 2×/4×SiS315
SiS 651SiS962, SiS962LSocket 478Pentium 4, Celeron400/533 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266/333 MHz DDR3 GBAGP 2×/4×SiS315
SiS 6552003SiS963, SiS963LSocket 478/Socket 775Pentium 4, Celeron400/533 MHzDual Channel DDR SDRAM266/333/400 MHz DDR4 GBAGP 4×/8×No
SiS 655FXSiS964, SiS964LSocket 478Pentium 4, Pentium 4 EE, Celeron, Celeron D400/533/800 MHzDual Channel DDR SDRAM266/333/400 MHz DDR4 GBAGP 4×/8×No
SiS 655TXSiS964, SiS964LSocket 478Pentium 4, Pentium 4 EE, Celeron, Celeron D400/533/800 MHzDual Channel DDR SDRAM266/333/400 MHz DDR4 GBAGP 4×/8×No
SiS 656SiS965, SiS965LSocket 775Pentium 4, Pentium 4 EE, Celeron D533/800 MHzDual Channel DDR/DDR2 SDRAM266/333/400 MHz DDR, 400/533 MHz DDR24 GBPCI-E x16No
SiS 656FXSiS966, SiS966LSocket 775Pentium 4, Pentium 4 EE, Pentium D, Celeron D533/800 MHzDual Channel DDR/DDR2 SDRAM266/333/400 MHz DDR, 400/533/667 MHz DDR24 GBPCI-E x16No
SiS 661FX2003SiS964, SiS964LSocket 478, Socket 775Pentium 4, Pentium 4 EE, Celeron, Celeron D400/533/800 MHzDDR SDRAM266/333/400 MHz DDR3 GBAGP 4×/8×SiS315
SiS 661GXSiS964, SiS964LSocket 478, Socket 775Pentium 4, Pentium 4 EE, Celeron, Celeron D400/533/800 MHzDDR SDRAM266/333/400 MHz DDR3 GBAGP 4×/8×SiS315
SiS 662SiS966, SiS966LSocket 775Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D533/800 MHzDDR2 SDRAM400/533/667 MHz DDR22 GBPCI-E x16SiS315
SiS 671SiS968Socket 775Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D533/800/1066 MHzDDR2 SDRAM400/533/667 MHz DDR24 GBPCI-E x16SiS351
SiS 671FXSiS968Socket 775Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D533/800/1066 MHzDDR2 SDRAM400/533/667 MHz DDR24 GBPCI-E x16SiS351
SiS 671DXSiS968Socket 775Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D533/800/1066 MHzDDR2 SDRAM400/533/667 MHz DDR24 GBPCI-E x16SiS351
SiS 672SiS968Socket 775Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D533/800 MHzDDR2 SDRAM400/533/667 MHz DDR24 GBPCI-E x16SiS351
SiS R658SiS963, SiS963LSocket 478Pentium 4, Celeron400/533 MHzDual Channel RDRAMPC1066 RDRAM/RIMM 4200/48004 GB AGP 4×/8×No

Socket A (Socket 462), Slot A

ChipsetRelease DateSouthbridgeProcessorsFSBMemory typesMemory busMax. memoryAGPIGP
SiS 7301999Northbridge integratedSlot A, Socket A100/133 MHzSDR SDRAM100/133 MHz SDR1.5 GB2×/4×SiS305
SiS 733Northbridge integratedSlot A, Socket A200/266 MHzSDR SDRAM100/133 MHz SDR1.5 GB2×/4×No
SiS 735Northbridge integratedSlot A, Socket A200/266 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266 MHz DDR1.5 GB2×/4×No
SiS 740SiS961, SiS962LSocket A200/266 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266 MHz DDR1.5 GB2×/4×SiS315
SiS 7412003SiS964, SiS964LSocket A266/333/400 MHzDDR SDRAM266/333/400 MHz DDR3 GB4×/8×SiS315
SiS 741GX2003SiS964, SiS964LSocket A266/333 MHzDDR SDRAM266/333 MHz DDR3 GB4×/8×SiS315
SiS 7452001Northbridge integratedSocket A200/266 MHzSDR SDRAM, DDR SDRAM100/133 MHz SDR, 200/266/333 MHz DDR3 GB4×/8×No
SiS 746SiS963, SiS963LSocket A200/266 MHzDDR SDRAM200/266/333 MHz DDR3 GB4×/8×No
SiS 746FXSiS963, SiS963LSocket A200/266/333 MHzDDR SDRAM200/266/333/400 MHz DDR3 GB4×/8×No
SiS 7482003SiS963, SiS963LSocket A200/266/333/400 MHzDDR SDRAM200/266/333/400 MHz DDR3 GB4×/8×No

Socket 940, 754, 939, AM2

Memory support is dependent on the CPU
ChipsetRelease DateSouthbridgeProcessorsHTGraphics SlotIGP
SiS 7552003SiS963, SiS963L, SiS964, SiS964LSocket 754HT 800AGP 4×/8×No
SiS 755FX2004SiS964, SiS964LSocket 939HT 1000AGP 4×/8×No
SiS 7562004SiS965, SiS965LSocket 754, Socket 939HT 1000PCI-E x16No
SiS 7602003SiS964, SiS964LSocket 754HT 800AGP 4×/8×SiS315
SiS 760GX2004SiS964, SiS964LSocket 754, Socket 939HT 800AGP 4×/8×Mirage 2
SiS 761GX2005SiS964, SiS964L, SiS965, SiS965LSocket 754, Socket 939, Socket AM2HT 1000PCI-E x16Mirage 2
SiS 7712006SiS966, SiS966L, SiS968Socket AM2HT 1000PCI-E x16SiS351
SiS created a multimedia chipset for the Xbox 360.

Southbridge chips

Paired with later SiS chipsets, such as the 661GX/761GX, which adopt a standard two-chip chipset design. SiS southbridges handle IDE, LAN, audio, and other I/O connectivity. SiS' proprietary MuTIOL interconnect connects the southbridge chip to the northbridge, which contains the RAM controller and interfaces with the CPU.
SouthbridgeRelease DateNB/SB InterconnectPCI Express/PortsSerial ATA/RAIDParallel ATAUSBAudioLAN MACIEEE 1394
SiS 4971995VLBN/AN/A4x PIOATA DevicesN/AN/AN/ANo
SiS 5031995Local Bus, PCIN/AN/AN/AN/AN/AN/ANo
SiS 51031995Local Bus, PCIN/AN/A4x PIO/WDMA ATA DevicesN/AN/AN/ANo
SiS 55031995Local Bus, PCIN/AN/A4x PIO/WDMA ATA DevicesN/AN/AN/ANo
SiS 55131995Local Bus, PCIN/AN/A4x PIO/WDMA ATA DevicesN/AN/AN/ANo
SiS 55951997PCIN/AN/A4x ATA/33 Devices1.1, 2 portsN/AN/ANo
SiS 9612001MuTIOL®, 533MB/sN/AN/A4x ATA/100 Devices1.1, 6 portsAC'9710/100No
SiS 961B?MuTIOL®, 533MB/sN/AN/A4x ATA/133 Devices1.1, 6 portsAC'9710/100No
SiS 9622002MuTIOL®, 533MB/sN/AN/A4x ATA/133 Devices2.0, 6 portsAC'9710/100Yes
SiS 962L2002MuTIOL®, 533MB/sN/AN/A4x ATA/133 Devices2.0, 6 portsAC'9710/100No
SiS 9632002MuTIOL® 1G, 1GB/sN/AN/A4x ATA/133 Devices2.0, 6 portsAC'9710/100Yes
SiS 963L2002MuTIOL® 1G, 1GB/sN/AN/A4x ATA/133 Devices2.0, 6 portsAC'9710/100No
SiS 9642003MuTIOL® 1G, 1GB/sN/A2x SATA/150, RAID 0,1,JBOD4x ATA/133 Devices2.0, 8 portsAC'9710/100No
SiS 964L2003MuTIOL® 1G, 1GB/sN/A2x SATA/150, RAID 0,1,JBOD4x ATA/133 Devices2.0, 8 portsAC'9710/100No
SiS 9652005?MuTIOL® 1G, 1GB/sPCIe x1, 2 ports4x SATA/150, RAID 0,1,0+1,JBOD4x ATA/133 Devices2.0, 8 portsAC'9710/100/1000
SiS 965L2005?MuTIOL® 1G, 1GB/sPCIe x1, 2 ports2x SATA/150, RAID 0,1,JBOD4x ATA/133 Devices2.0, 8 portsAC'9710/100
SiS 9662005?MuTIOL® 1G, 1GB/sPCIe x1, 2 ports4x SATA/150, RAID 0,1,0+1,JBOD4x ATA/133 Devices2.0, 8 portsAC'97/HD Audio10/100/1000 No
SiS 966L2005?MuTIOL® 1G, 1GB/sPCIe x1, 2 ports2x SATA/150, RAID 0,1,JBOD4x ATA/133 Devices2.0, 8 portsAC'97/HD Audio10/100
SiS 9682007?MuTIOL® 1G, 1GB/sPCIe x1, 2 ports2x SATA/300, RAID 0,1,JBOD2x ATA/133 Devices2.0, 8 portsHD Audio10/100/1000No

Graphics chipsets

Integrated 3D Graphics

Some cards contain a 3D graphics accelerator but it is only functional with the SiS's Proprietary Windows-only driver . However, the Linux kernel includes a working third party driver that, while not supporting 3D gaming, makes the cards usable under Linux.

Touch-Screen chipsets