System Unit of a System Unit of a Computer Computer

SystemSystem

主機板 (Motherboard)

AT motherboard

CPU

CACHE

RAM

POWER

KEYBOARD

INTERFACE

SLOT

BIOS

CPU

ATX motherboard

Important specificationPower connector

BIOS

Main Memory

Battery

I/O port

USB port

PCI slot

AGP slot

PS/2 slot

IDE slot

Floppy Drive

Hard disk

Chipset

PCI

PCI PCI-XPCI Express

(3GIO)

Connection type Parallel 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 8 MHz 32 MBps

VL-bus 32 bits 25 MHz 100 MBps

VL-bus 32 bits 33 MHz 132 MBps

PCI 32 bits 33 MHz 132 MBps

PCI 64 bits 33 MHz 264 MBps

PCI 64 bits 66 MHz 512 MBps

PCI 64 bits 133 MHz 1 GBps

IDE slotPin Description Pin Description

1 Reset 23 -IOW

2 Ground 24 Ground

3 Data Bit 7 25 -IOR

4 Data Bit 8 26 Ground

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 Ground

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 Ground

19 Ground 41 +5 Volts (Logic) (Optional)

20 Cable Key (pin missing) 42 +5 Volts (Motor) (Optional)

21 DRQ 3 43 Ground (Optional)

22 Ground 44 -Type (Optional)

IDE signal cable

SCSI

External SCSI

SCSI 50PINSCSI 68PIN

COM port

LPT port

USB port

A

B

signal

power

earth

i845GV

i845GE

i845PE

AMD750

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

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