[. . . ] DRAM INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CPU SPEED SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CMOS RTC & ISA CFG CMOS SRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEAKER CONNECTOR INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] INTEGRATED PERIPHERALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . USER PASSWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IDE HDD AUTO DETECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAVE & EXIT SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXIT WITHOUT SAVING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . It is a Pentium® II Processor based PC / AT compatible system with AGP / PCI / ISA Bus, and has been designed to be the fastest PC / AT system. There are some new features allow you to operate the system with just the performance you want. This manual also explains how to install the motherboard for operation, and how to set up your CMOS CONFIGURATION with BIOS SETUP program. 1. 2. KEY FEATURES q Intel Pentium® II Processor based PC / AT compatible main board. q Intel 440BX chipset, Supports AGP / SDRAM / Ultra DMA33 IDE / Keyboard and PS/2 Mouse Power On / ACPI features. q Supports 4xDIMMs using 3. 3V SDRAM DIMM module. q 30. 5 cm x 19 cm ATX SIZE form factor, 4 layers PCB. 1-1 686BX 1. 3. - Operation with MS-DOS®, Windows®95, WINDOWS NTTM, OS/2, NOVELL and SCO UNIX. 2. 3. · Altitude · Vibration · Electricity - 0°C to +50°C (Operating). 20A current at 5V. ) 2-2 Hardware Installation 3. HARDWARE INSTALLATION 3. 1. UNPACKING The main board package should contain the following: · The 686BX main board. · The Retention Mechanism & Attach Mount · USER'S MANUAL for main board. · Diskette or CD for main board Utility. The main board contains sensitive electric components, which can be easily damaged by static electricity, so the main board should be left in its original packing until it is installed. Unpacking and installation should be done on a grounded anti-static mat. The operator should be wearing an anti static wristband, grounded at the same point as the anti-static mat. Be sure there are no shipping and handling damages on the board before proceeding. After opening the main board carton, extract the system board and place it only on a grounded anti-static surface component side up. Press down on all of the socket IC's to make sure that they are properly seated. [. . . ] The DRAM installation position refer to Figure 3. 1, and notice the Pin 1 of DIMM module must match with the Pin 1 of DIMM socket. If there is a wrong direction of Pin 1, the DRAM DIMM module could not be inserted into socket completely. 3. 5. CPU SPEED SETUP The system bus speed can be set to 66. 6MHz or 100MHz form the jumper (JP6). The user can change the DIP SWITCH (SW) selection to set up the CPU speed for different processors. [. . . ]