Acer Altos 500 aa500ug.pdf - Page 15

System Board, Features

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Chapter 1 System Board 1.1 Features This high-performance system board supports the Intel Pentium III procesor running at 500 and 550 MHz. Integrated with the Intel 440BX system controller, which consists of the PCI controller and the PCI/ISA IDE accelerator (PIIX4), the Altos 500 combines the new generation of Pentium III power with unmatched graphics performance. The system controller host bus interface supports a Pentium III processor with 66 or 100 MHz external front side bus frequency. It also provides support for ECC synchronous Registered DRAM (SDRAM) 168 pin DIMMs. The PIIX4 is a multifunction PCI device controller implementing system functions including PCI IDE and universal serial bus (USB) host/hub. It also supports Ultra DMA/33 synchronous DMA-compatible devices. The system board utilizes both ISA and PCI local bus architectures. Two ISA, five PCI bus slots (including one PCI/ISA shared slot), and one AGP slot reside on the system board. Three memory banks composed of 168-pin dual inline memory module (DIMM) sockets support a maximum system memory of 768 MB using 256-MB DIMMs. The system board provides additional support for the USB (Universal Serial Bus) interface, and other standard features such as two UART NS16C550 serial ports, one enhanced parallel port with an Enhanced Parallel Port (EPP)/Extended Capabilities Port (ECP) feature, a diskette drive interface, and two embedded hard disk interfaces. Chapter 1 - System Board 1-1

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Chapter 1 - System Board
1-1
Chapter 1
System Board
1.1
Features
This high-performance system board supports the Intel Pentium III procesor
running at 500 and 550 MHz.
Integrated with the Intel 440BX system controller,
which consists of the PCI controller and the PCI/ISA IDE accelerator (PIIX4), the
Altos 500 combines the new generation of Pentium III power with unmatched
graphics performance.
The system controller host bus interface supports a Pentium III processor with 66
or 100 MHz external front side bus frequency.
It also provides support for ECC
synchronous Registered DRAM (SDRAM) 168 pin DIMMs.
The PIIX4 is a multifunction PCI device controller implementing system functions
including PCI IDE and universal serial bus (USB) host/hub.
It also supports Ultra
DMA/33 synchronous DMA-compatible devices.
The system board utilizes both ISA and PCI local bus architectures.
Two ISA, five
PCI bus slots (including one PCI/ISA shared slot), and one AGP slot reside on the
system board.
Three memory banks composed of 168-pin dual inline memory module (DIMM)
sockets support a maximum system memory of 768 MB using 256-MB DIMMs.
The system board provides additional support for the USB (Universal Serial Bus)
interface, and other standard features such as two UART NS16C550 serial ports,
one enhanced parallel port with an Enhanced Parallel Port (EPP)/Extended
Capabilities Port (ECP) feature, a diskette drive interface, and two embedded hard
disk interfaces.