System Unit of a Computer System 主機板 (Motherboard)

AT motherboard INTERFACE SLOT BIOS CPU KEYBOARD CPU CACHE RAM POWER

ATX motherboard

Important specification Hard disk Power connector PCI slot BIOS AGP slot Main Memory IDE slot I/O port Floppy Drive Battery USB port PS/2 slot Chipset

PCI PCI PCI-X PCI Express (3GIO) Connection type Parallel Serial Highest bandwidth 528MB/s 4.3GB/s 12.8GB/s

AGP

Buses in a computer Bus Type Bus Width Bus Speed MB/sec ISA 16 bits 8 MHz 16 MBps EISA 32 bits 32 MBps VL-bus 25 MHz 100 MBps 33 MHz 132 MBps PCI 64 bits 264 MBps 66 MHz 512 MBps 133 MHz 1 GBps

IDE slot Pin Description 1 23 2 24 3 25 4 26 5 27 6 28 7 29 8 30 9 31 Reset 23 -IOW 2 Ground 24 3 Data Bit 7 25 -IOR 4 Data Bit 8 26 5 Data Bit 6 27 I/O Channel Ready 6 Data Bit 9 28 SPSYNC: Cable Select 7 Data Bit 5 29 -DACK 3 8 Data Bit 10 30 9 Data Bit 4 31 RQ 14 10 Data Bit 11 32 -IOCS 16 11 Data Bit 3 33 Address Bit 1 12 Data Bit 12 34 -PDIAG 13 Data Bit 2 35 Address Bit 0 14 Data Bit 13 36 Address Bit 2 15 Data Bit 1 37 -CS1FX 16 Data Bit 14 38 -CS3FX 17 Data Bit 0 39 -DA/SP 18 Data Bit 15 40 19 41 +5 Volts (Logic) (Optional) 20 Cable Key (pin missing) 42 +5 Volts (Motor) (Optional) 21 DRQ 3 43 Ground (Optional) 22 44 -Type (Optional)

IDE signal cable

SCSI

External SCSI SCSI 68PIN SCSI 50PIN

COM port

LPT port

USB port power A signal earth B

i845GV

i845GE

i845PE

AMD750 200 MHz AMD-K7 Host Channel UDMA/66 AGP 2x 4 port OHCI USB AMD-751™ System Controller AMD-756™ Peripheral Bus Controller 200 MHz AMD-K7 Host Channel UDMA/66 AGP 2x 4 port OHCI USB ACPI 1.0 compliant PC100 SDRAM (up to 768 MB) APM 1.2 compliant PCI 2.2 compliant PCI-ISA bridge ECC support Plug & Play support Support for 6 PCI masters IOAPIC support 492 pin PBGA Advanced Power Management Keyboard/Mouse controller Y2K compliant RTC Host SMBus 272 pin PBGA AMD750

AMD760

AMD 760MP Dual point-to-point, high-speed 266MHz 1 AMD Athlon system bus (supporting up to two processors) PC21002 DDR (Double Data Rate) memory subsystem (supporting up to 4 GB of memory space) AGP-4X Graphics Interface (supports 1X and 2X modes) PCI 2.2 Compliant 33 MHz - 32/64-bit PCI Bus Interface Two-channel EIDE Interface supporting ATA 33/66/100 modes LPC bus Flash memory/GPIO Interface USB OHCI host controller supporting four ports SM-Bus IOAPIC support Serial IRQ support Power management support

AMD760MPX Dual high-speed 266 MHz1 AMD Athlon system buses, supporting up to two processors PC21002 DDR memory subsystem supporting up to 4 GB of memory AGP-4X Graphics Interface (supports 1X and 2X modes Primary PCI 2.2 compliant 66-MHz/64-bit/32-bit PCI Bus Secondary PCI 2.2 compliant 33-MHz/32-bit PCI Bus Two-channel ATA 33/66/100 support LPC bus Thirty-two general-purpose IO (GPIO) pins USB OHCI host controller supporting four ports SM-Bus IOAPIC support Serial IRQ support Power Management support AC ‘97 Audio support

Socket 370主機板 Intel 82815EP (B-stepping) / 82801BA 晶片組 支援 Intel Celeron FC-PGA with 66/100 Mhz FSB 支援 Intel Pentium III FC-PGA with 100/133 Mhz FSB 支援 Intel Pentium III FC-PGA 2 with 133Mhz FSB (Tualatin Ready) 支援 VIA Cyrix III with 100/133 Mhz FSB 支援三支 SDRAM , 最高可達 512MB, PC100/PC133 SDR DIMM 支援 6 PCI, 1 AGP 4X 內建 C-Media 8738/PCI-6ch 晶片, 支援 2/4/6 聲道喇叭輸出 內建 Promise 265R, 支援ATA 100 IDE RAID ( AE25R Only )

Socket 423主機板 Intel 850/82801BA 晶片組 Socket423 規格, 支援Intel Pentium 4 CPU 支援四支 RIMMs 2GB, 最高可達 PC800 RDRAM 支援 AGP 4X, CNR, USB ports 支援 UDMA ATA 100/66/33 IDE 介面 內建 AC'97 音效輸出 內建硬體溫度/電壓監控功能

Socket 478主機板 (Intel) Intel 845MCH / 82810 ICH2 晶片組 Socket478 規格, 支援 Intel Pentium 4 CPU 184根針腳的 DDR X 2, 最高可達 2GB DDR PC1600/PC2100 DIMM 支援 AGP 4x Slot / 4 USB1.1 Ports 支援 5 PCI 2.1/2.2 Slot 支援 UDMA ATA 100/66/33 IDE 介面 內建 C-Media 8738/PCI-6ch 晶片, 支援 2/4/6 聲道喇叭輸出 內建 Promise 265R, 支援 ATA 100 IDE RAID (AB40R Only) 內建 USB2.0 介面 (選購品)

Socket 478主機板 (VIA) VIA P4X266A/VT8233A 晶片組 Socket 478 規格, 支援 Intel Pentium 4 CPU 184 根針腳的 DDR X 3 最高可達 3GB DDR PC1600/PC2100 DIMM 支援 AGP 4X, and 4 USB ports (1.1) 支援 UDMA ATA 133/100/66 IDE 介面 內建 High Point 372 支援 ATA-133 IDE RAID (AV45GT2R only) 內建 C-Media 8738/PCI-6ch 晶片,支援 2/4/6 聲道喇叭輸出 內建 VT6202 USB 2.0 介面 (選購品)

Socket 478主機板 (SIS) SIS 650/SIS 961 晶片組 支援 Socket 478 Intel Processors 支援2隻DDR DIMM 最高可達2GB PC1600/PC2100 DDR DIMM 支援 AGP 4X, and 6 USB (1.1)插槽 內建 Realtek 8100 10/100 網路晶片 支援 UDMA ATA 100/66/33 IDE 介面 內建 AC'97 音效輸出

Socket A 主機板 VIA VT8366A/VT8233 晶片組 AMD K7 規格, 支援 Athlon/Duron FSB 200/266 Processors 184 根針腳的 DDR X 4 最高可達 4GB DDR PC1600/PC2100 DIMM 支援 AGP 4X, 6 USB ports (1.1) 支援 UDMA ATA 100/66/33 IDE 介面 內建 High Point 372, 支援 ATA-133 IDE RAID (AK35GTR only) 內建 C-Media 8738/PCI-6ch 晶片, 支援 2/4/6 聲道喇叭輸出 內建硬體溫度/電壓監控功能