Chapter 2 Hardware Installation This chapter gives you a step-by-step procedure on how to install your system. Follow each section accordingly. Caution: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component. 1. Do not remove a component from its protective packaging until you are ready to install it. 2.
Hardware Installation 2.
Hardware Installation Jumpers: JP14: JP23: Clear CMOS AGP Ratio Connectors: PS2: KB: COM1: COM2: PRINTER: PWR2: USB: FDC: IDE1: IDE2: CPUFAN: FAN: IrDA: HDD LED: PANEL: SPWR: MODEM-WKUP: LAN-WKUP: SB-LINK: PS/2 mouse connector PS/2 keyboard connector COM1 connector COM2 connector Printer connector ATX power connector USB connector Floppy drive connector IDE1 primary channel IDE2 secondary channel CPU Fan connector Housing Fan Connector IrDA (Infrared) connector HDD LED connector Front panel (Multifunctio
Hardware Installation 2.2 Jumpers With the help of Pentium II VID signal and SMbus, this motherboard is jumperless design. 2.2.1 Selecting the CPU Frequency Pentium II VID signal and SMbus clock generator provide CPU voltage autodetection and allow user to set CPU frequency through CMOS setup, no jumper or switch is needed. The correct CPU information is saved into EEPROM, with these technologies, the disadvantages of Pentium base jumper-less design are eliminated.
Hardware Installation Warning: INTEL 440BX chipset supports maximum 100MHz external CPU bus clock, the 103, 112 and 133.3MHz are for internal test only. These settings exceed the specification of BX chipset, which may cause serious system damage. 2.2.2 Setting the CPU Voltage This motherboard supports Pentium II VID function, the CPU core voltage is automatically detected, the range is from 1.3V to 3.5V. 2.2.
Hardware Installation Tip: Except using JP14, you may also press key. By this smart design, it would be more convenient to clear CMOS. For using this function, you just need to press key first and then press Power button at the same time. After doing this, the system will return to the default setting (233MHz).
Hardware Installation 2.2.4 AGP Ratio JP23 1-2 3-4 5-6 AGP Ratio Auto (default) 2/3 1/1 To improve system performance, AX6B has implemented this jumper for AGP to synchronize the CPU 100Mhz (or above) external frequency. We recommend you choose a better AGP card for overclocking. Some AGP cards can not take 100MHz bus frequency and may cause overclocking failure.
Hardware Installation 2.3 Connectors 2.3.1 Power Cable The ATX power supply uses 20-pin connector shown below. Make sure you plug in the right direction. Caution: Make sure that the power supply is off before connecting or disconnecting the power cable. +5V 3.3V 5V SB 3.3V +5V PWR2 2.3.2 ATX Soft-Power Switch Connector The ATX soft-power switch connector is a 2-pin header on the system board. Locate the power switch cable from your ATX housing.
Hardware Installation 2.3.3 Fan Plug in the fan cable to the 3-pin fan connector onboard. The fan connector is marked CPU FAN and FAN on the system board. SENSE +12V GND CPUFAN and FAN Note: Attach fan cable to either CPU FAN connector or FAN connector. Both of these two fans connectors can support hardware monitoring function, however, you can only use the CPU FAN connector to control the fan power ON/OFF. 2.3.4 PS/2 Mouse The onboard PS/2 mouse connector is a 6-pin Mini-Din connector marked PS2.
Hardware Installation 2.3.5 Keyboard The onboard PS/2 keyboard connector is a 6-pin Mini-Din connector marked KB2. The view angle of drawing shown here is from back panel of the housing. PCB PS/2 KB 2.3.6 Serial Devices (COM1/COM2) The onboard serial connectors are 9-pin D-type connector on the back panel of mainboard. The serial port 1 connector is marked as COM1 and the serial port 2 connector is marked as COM2.
Hardware Installation 2.3.7 Printer The onboard printer connector is a 25-pin D-type connector marked PRINTER. The view angle of drawing shown here is from back panel of the housing. PRINTER PCB 2.3.8 USB Device You can attach USB devices to the USB connector. The motherboard contains two USB connectors, which are marked as USB.
Hardware Installation 2.3.9 Floppy Drive Connect the 34-pin floppy drive cable to the floppy drive connector marked as FDC on the system board. 2 34 1 33 FDC 2.3.10 IDE Hard Disk and CD ROM This mainboard supports two 40 pin IDE connectors marked as IDE1 and IDE2. IDE1 is also known as primary channel and IDE2 as secondary channel, each channel supports two IDE devices that makes total of four devices.
Hardware Installation Caution: The specification of IDE cable is maximum 46cm (18 inches), make sure your cable does not excess this length. Caution: For better signal quality, it is recommended to set far end side device to master mode and follow the suggested sequence to install your new device. Please refer to following figure. IDE2 (Secondary Channel) Slave (4th) Master (3rd) IDE1 (Primary Channel) Slave (2nd) Master (1st) 2.3.
Hardware Installation 2.3.12 Hard Disk LED Pin 1 2 3 4 The HDD LED connector is marked as HDD LED on the board. This connector is designed for different type of housing, actually only two pins are necessary for the LED. If your housing has four pin connector, simply plug it in. If you have only two pin connector, please connect to pin 1-2 or pin 3-4 according to the polarity.
Hardware Installation 2.3.14 Panel Connector The Panel (multifunction) connector is a 20-pin connector marked as PANEL on the board. Attach the power LED, keylock, speaker, and reset switch to the corresponding pins as shown in the figure. Some housings have a five-pin connector for the keylock and power LED Since power LED and keylock are aligned together, you can still use this kind of connector.
Hardware Installation 2.3.15 IrDA Connector The IrDA connector can be configured to support wireless infrared module, with this module and application software such as Laplink or Win95 Direct Cable Connection, user can transfer files to or from laptops, notebooks, PDA and printers. This connector supports HPSIR (115.2Kbps, 2 meters), ASK-IR (56Kbps) and Fast IR (4Mbps, 2 meters).
Hardware Installation 2.3.16 Modem Wake-up Connector This mainboard implements special circuit to support Modem Ring-On, both Internal Modem Card (AOpen MP56) and external box Modem are supported. Since Internal Modem card consumes no power when system power is off, it is recommended to use Internal Modem. To use AOpen MP56, connect 4-pin cable from RING connector of MP56 to MODEM-WKUP connector on the mainboard.
Hardware Installation 2.4 Configuring the System Memory The DIMM types supported are SDRAM (Synchronous DRAM) and Registered SDRAM. This mainboard has four 168 pin DIMM sockets (Dual-in-line Memory Module) that allow you to install system memory up to 1GB. But note that mixing SDRAM and Registered SDRAM is not allowed, you can install one of the DRAM types only. PIN 1 Warning: This motherboard does not support EDO DRAM. DIMM modules can be identified by the following factors: I.
Hardware Installation II. Speed: Normally marked as -12, which means the clock cycle time is 12ns and maximum clock of this SDRAM is 83MHz. Sometimes you can also find the SDRAM marked as -67, which means maximum clock is 67MHz. Caution: Some SDRAMs marked as -10 may work fine with 100 MHz CPU clock, but not all this kind of modules can work properly under 100MHz external clock. We suggest you choose and install SDRAMs that match PC 100 specification if 100MHz or above CPU clock is selected. III.
Hardware Installation There is no jumper setting required for the memory size or type. It is automatically detected by the system BIOS, and the total memory size is to add them together.
Hardware Installation For getting the best performance and stability under 100MHz or above external clock, we strongly recommend you use PC 100 SDRAM. The PC 100 SDRAM that AOpen had tested are listed below.
Hardware Installation Warning: The driving capability of new generation chipset is limited because the lack of memory buffer (to improve performance). This makes DRAM chip count an important factor to be taking into consideration when you install DIMM. Unfortunately, there is no way that BIOS can identified the correct chip count, you need to calculate the chip count by yourself. The simple rule is: By visual inspection, use only DIMM which is less than 16 chips.
