User manual GIGABYTE GA-686DLX

[. . . ] 686DLX USER'S MANUAL Pentium® II Processor MAINBOARD REV. 1 First Edition R-01-01-080121 686DLX The author assumes no responsibility for any errors or omissions which may appear in this document nor does it make a commitment to update the information contained herein. Third-party brands and names are the property of their respective owners. DECEMBER 06, 1997 Taipei, Taiwan 2 Table of Contents TABLE OF CONTENTS 1. PREFACE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1. 2. KEY FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1. 3. [. . . ] It's read performance is very good, because data can be read from either the primary or mirrored disk. However, it's write performance is slignhtly slower than with singal disks, because two requests must be issued to write the same data to both drivers. RAID 0/1 (four driver minimunm) is as RAID 0+1, combines the performance of data striping (RAID 0) with the fault tolerance of RAID1. RAID 5 (three drivers minimum) strips blocks of data as well as parity data across all driver in the array, ensuring that no data will be lost in the event of a single driver failure. RAID 5 delivers improved performance by allowing multiple, simultaneous read and write requests but it unlike the other RAID levels. 1-6 Specification 2. SPECIFICATION - Dual Pentium® II processor 200 ­ 633 MHz. - Onboard Buzzer Alarm when detect "CPU FAN 2. 1. HARDWARE · CPU · PROTECTION Failure" or " CPU Overheat" . - Automatically slow down CPU speed when "CPU - Intel LDCM® support. FAN Failure" or "CPU Overheat". - H/W monitor power status (±5V, ±12V, CPU voltage & CMOS battery voltage). · SPEED - 66 MHz system speed. - 8 MHz AT bus speed. · DRAM MEMORY - 4 banks 168 pins DIMM module sockets on board. - Use 8 / 16 / 32 / 64 / 128 / 256 MB 60~70 ns DIMM module DRAM. - 8 ~ 1 GB DRAM size. - Support ECC or Non-ECC type DRAM. · CACHE MEMORY - 32 KB 1st cache memory included in CPU. - Support DIB speed mode for L2 Cache. · SCSI PORTS - Using Adaptec 7880P chipset. - Supports one SCSI-2 or SCSI-3 (Ultra) port. - Support Adaptec RAID PortTM on board. · I/O BUS SLOTS - 1 66 / 133MHz AGP BUS. - 3 8MHz 16 bits ISA BUS. · IDE PORTS - 2 Ultra DMA/33 Bus Master IDE channels on board. (Using ROM. IRQ14, 15) - Back ward Support Mode 3, 4 IDE & ATAPI CD - 2-1 686DLX · I/O PORTS - Supports 2 16550 COM ports. (Using IRQ4, 3) - Supports 1 EPP/ECP LPT port. (Using IRQ7 or 5 and DMA3 or 1) - Supports 1 1. 44/2. 88 MB Floppy port. (Using DMA2 & IRQ6) - Supports 2 USB ports. (Using IRQ12 ) - Supports PS/2 Keyboard. (Using IRQ1 ) · GREEN FUNCTION - - - - Suspend mode support. Monitor all IRQ / DMA / Display / I/O events. · BIOS · DIMENSION 2. 2. SOFTWARE · DRIVER - 256KB FLASH EEPROM. - Supports Plug & Play, DMI, ACPI Function. [. . . ] The J8 is the active LED port for ATAPI device. 3. 11. SCSI DEVICE INSTALLATION There are two SCSI ports on board, One is 8bit SCSI port for SCSI-2 or ULTRA SCSI device, and total 7 8bit SCSI devices can exist in a system. The other is 16bit SCSI port for wide or ULTRA Wide SCSI device, and total 15 SCSI devices (include 8bit SCSI device) can exist in a system. The low byte Terminator (used for 8bit SCSI port) and High byte Terminator(used for Wide SCSI port) turning "ON" or "OFF" are controlled by BIOS SETUP(includes INTEGRATED PERIPHERALS SETUP PAGE). [. . . ]