User manual AOPEN MX3W-HW

[. . . ] To clear the CMOS, follow the procedures as below: JP14 1 2 3 JP14 1 2 3 Normal Operation (default) The procedure to clear CMOS: 1. 7. Clear CMOS Turn off the system and unplug the AC power. Remove ATX power cable from connector PWR2. Locate JP14 and short pins 2-3 for a few seconds. [. . . ] We recommend that you remain the default setting. 1/1: The display cache runs at a speed as same as the CPU external clock. 3/2: The display cache runs at a speed of 3/2 CPU external clock. Below is a table for better understanding: 2-7 Hardware Installation CPU Type 66MHz 66MHz 66MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 66/100 signal Low Low Low High High High High High High Bus clock 66MHz 66MHz 100MHz 100MHz 100MHz 100MHz 133MHz 133MHz 133MHz Display Cache 100MHz 66MHz 150MHz 100MHz 100MHz 150MHz 100MHz 133MHz 199. 5MHz JP23 1-2 3-4 5-6 1-2 3-4 5-6 1-2 3-4 5-6 Warning: The specification of AGP is maximum 100Mhz clock. A higher setting may cause the system damage. 2-8 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 Fan Plug in the fan cable to the 3-pin fan connector onboard. The fan connector is marked CPUFAN1 and FAN1 on the system board. SENSE +12V GND CPUFAN1 FAN1 2-9 Hardware Installation 2. 3. 3 PS/2 Mouse The onboard PS/2 mouse connector is a 6-pin Mini-Din connector marked PS2. The view angle of drawing shown here is from back panel of the housing. PCB PS/2 Mouse 2. 3. 4 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 2-10 Hardware Installation 2. 3. 5 Serial Devices (COM1) The onboard serial connectors COM1 are 9-pin D-type connector on the back panel of mainboard. PCB COM1 2. 3. 6 Serial Devices (COM2) Plug in the IDE cable to the COM2 connectors. 1 2 9 10 COM2 2-11 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. PCB USB 2-12 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. 1 2 33 34 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 make total of four devices. In order to work together, the two devices on each channel must be set differently to master and slave mode, either one can be hard disk or CDROM. The setting as master or slave mode depends on the jumper on your IDE device, please refer to your hard disk and CDROM manual accordingly. Connect your first IDE hard disk to master mode of the primary channel. If you have second IDE device to install in your system, connect it as slave mode on the same channel, and the third and fourth device can be connected on secondary channel as master and slave mode respectively. 2 1 40 39 IDE2 2 1 40 39 IDE1 2-13 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. [. . . ] The pin 1-2 is Mono In, and the pin 3-4 is Mic Out. Please note that there is no standard for this kind of connector yet, only some internal modem cards implement this connector. 2-clock and 4-clock signals: Although both of 2-clock and 4-clock signals are supported by this motherboard, we strongly recommend choosing 4clock SDRAM in consideration of reliability. Tip: To identify 2-clock and 4-clock SDRAM, you may check if there are traces connected to golden finger pin 79 and pin 163 of the SDRAM. [. . . ]