1.2.6  To reduce number of chips on the motherboard  Microprocessor is communication & processing are integrated into 2 or 3 chips  These chips integrated with microprocessor  Chip contain more than one logic like  DMA logic  Timer Logic  Interrupt logic  Peripheral interfaces logic  These chips are called as chipset Chip manufactures are   VIA technologies (cyrix)  Acer labs(ALI)  Silicion integrated systems(SIS)  OPT1  Chipset connected with processor  On board memory  System bus  Audio & video  Input/output ports

INTEL PROCESSOR Advantages:  Reduce chip count in a computer  Reduce power requirement  They shorten the signal paths and allow the circuits to operate at higher speeds  Improvement reliability  Reduce construction cost

EXAMPLE CIRCUIT FOR INTEL CHIP 1) Intel 440GX chipset  Processor support – Pentium II/III xenon processor multi processor support 2 processor  Functional blocks – host bridge controller  DMA interrupt controller time  Memory support – SDRAM memory (2GB)  Bus support – 100 MHZ system bus, PCI bus at 33MHZ  Video and audio support – AGP devices  Input/Output support – 2 USB ports 2) Intel 440BX chipset  Processor support – Pentium II/III xenon processor multi processor support 2 processor  Functional blocks: – AGA host bridge controller  Memory support – 1GB of SDRAM/DIMM memory  Bus support – 100 MHZ system bus, PCI bus at 33MHZ  Video and audio support – AGP devices  Input/Output support – 2 USB ports

3) Intel 440 ZX chipset  Processor support – Pentium II/III processor  Functional blocks – AGA host bridge controller  Memory support – 256 MB memory

4) Intel 440 FX chipset  Processor support – Pentium II and Pentium preprocessor  Functional blocks – Data bus accelerator  Memory support – 1GB of EDORAM with ECC memory  Bus support – 100 MHZ system bus, PCI bus at 33MHZ  Video and audio support – Improved MPEG and audio performance  Input/Output support – 2 USB ports

5) Intel 440 LX chipset  Processor support – Pentium II  Functional blocks: – Interrupt controller  Timer  Enhanced DMA  Memory support – 1GB of SDRAM with ECC memory  Bus support – Graphics bus, PCI bus at 33MHZ  Video and audio support – AGP 1x/2x  Input/Output support –USB ports PCI-ISA-IDE

6) Intel 450 series chipset  Processor support – Pentium II /Pentium preprocessor  Functional blocks – AGA host bridge controller  Interrupt controller  Timer  Enhanced DMA  Memory support – 450 GX- 8 GB with ECC  Bus support – 2 PCI bus  Video and audio support – AGP devices  Input/Output support –USB ports

7) Intel 810 series chipset  Processor support – Pentium II /Pentium preprocessor  Functional blocks– Memory controller hub & controller hub & firmware  Memory support – 512 MB memory  Bus support – PCI bus  Video and audio support – AGP2.0 devices  Input/Output support –dual USB ports 8) Intel 815 series chipset  Processor support – Pentium III  Functional blocks – Memory controller hub  Memory support – 512 MB memory  Bus support – PCI bus  Input/Output support –2 USB ports 9) Intel 820 series chipset  Processor support – Pentium II /Pentium preprocessor  Functional blocks – controller hub  Memory suppor – 1GB system memory  Bus support – 133 MHZ system bus  Video and audio support – AGP 4X  Input/Output support –dual USB ports 10) Intel 850 series chipset  Processor support – Pentium IV  Functional blocks – Memory controller hub  Memory support – 2GB of RDRAM  Bus support – four 100 MHZ system bus  Video and audio support – AGP 4X  Input/Output support –four USB ports