User manual AOPEN AX458XN

[. . . ] Overview Troubleshooting & Technical Support Hardware Installation Drivers & Utilities AWARD BIOS Setup Glossary Online Manual DOC. NO. : AX458XN-OL-E0207A AX45-8X / AX45-8XN AX45-8X AX45-8X / AX45-8XN 1 AX45-8X / AX45-8XN What's in this manual Online Manual AX45-8X / AX45-8XN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What's in this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 You Must Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Before You Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Once the LED7 (latest LED) is lit, this indicates that the system has completed its boot-up procedure. The 8 LEDs indicate the following messages when lit: LED 0 - Indicates that the CPU may have been installed incorrectly or is damaged. LED 1 - Indicates that the memory may have been installed incorrectly or is damaged. LED 2 - Indicates that the AGP may have been installed incorrectly or is damaged. LED 3 - Indicates that the PCI card may have been installed incorrectly or is damaged. LED 4 - Indicates that the floppy disk drive may have been installed incorrectly or is damaged. LED 5 - Indicates that the HDD may have been installed incorrectly or is damaged. LED 6 - Indicates that the keyboard may have been installed incorrectly or is damaged. LED 7 - Indicates that the system is OK. Note: During POST (Power On Self Test) procedure, the Debug LED will light on sequentially from LED0 to LED7 until the system boot O. K 62 AX45-8X / AX45-8XN Battery-less and Long Life Design Online Manual This Motherboard implements a Flash ROM and a special circuit that provide you no batter power consumption of current CPU and CMOS Setup configurations. The RTC (real time clock) can also keep running as long as the power cord is plugged. If you lose your CMOS data by accident, you can just reload the CMOS configurations from Flash ROM and the system will recover as usual. ATX Stand-by Power Battery Auto Switch Auto switching to ATX standby power RTC (Real Time Clock) 00:00:00 as long as AC power line is plugged. This smart design increases battery life if you still plug battery on motherboard. Flash ROM CMOS Backup by EEPROM 63 AX45-8X / AX45-8XN Over-current Protection Online Manual The Over Current Protection is a popular implementation on ATX 3. 3V/5V/12V switching power supply. However, the new generation CPU uses different voltage with a regulator to transfer 12V to CPU voltage (for example, 2. 0V), and thus makes 5V over current protection useless. This motherboard is with switching regulator onboard supporting CPU over-current protection; in conjunction with 3. 3V/5V/12V power supply provide the full line over-current protection. 3. 3V (Protected by power supply) ATX Switching Power Supply 5V (Protected by power supply) 12V (Protected by power supply) Onboard Power Regulator Over-Current Protection Circuit CPU Core Voltage Note: Although we have implemented protection circuit and tried to prevent any human operating mistake, certain risks might still happen when CPU, memory, HDD or add-on cards installed on this motherboard is damaged due to component failure, human operating error or other unknown natural reasons. AOpen cannot guarantee that the protection circuit will always work perfectly. 64 AX45-8X / AX45-8XN Hardware Monitoring Online Manual This motherboard implements a hardware monitoring system. As you turn on your system, this smart design will monitor your system's working voltage, fan status and CPU temperature. If any of those systems' status goes wrong, there will be an alarm through the chassis external speaker or buzzer of motherboard (if having this function and enabled) to warn the user. Fan Fan Speed CPU CPU Temperature CPU Voltage Detection Circuit AOpen H/W Monitoring Utility Power System Voltage 65 AX45-8X / AX45-8XN Resettable Fuse Online Manual Traditional motherboard uses fuses to prevent Keyboard and USB port from over-current or shortage. These fuses are soldered onboard that when it is broken (function to protect motherboard), user cannot replace them and result in malfunction of motherboard. With expensive Resettable Fuse, the motherboard can be resumed back to normal function even after the fuse had done its protection job. Resettable Fuse 66 AX45-8X / AX45-8XN 2200F Low ESR Capacitor Online Manual The quality of low ESR capacitor (Low Equivalent Series Resistance) during high frequency operation is very important for the stability of CPU power. The idea of where to put these capacitors is another know-how that requires experience and detail calculation. Not only that, AX45-8X / AX45-8XN implements 2200F capacitors, which is much larger than normal capacitor (1000 & 1500f) and it provides better stability for CPU power. 67 AX45-8X / AX45-8XN Online Manual The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the new Pentium III, or when overclocking). [. . . ] You can find this bar code label on the outside packing, or on component side of PCB. For example: Part No. Serial No. Part No. P/N: 91. 88110. 201 is part number, S/N: 91949378KN73 is serial number. 116 AX45-8X / AX45-8XN Model name and BIOS version Online Manual Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). For example: AX45-8XN R1. 20 Jun. 01. 2002 AOpen Inc. Award Plug and Play BIOS Extension v1. 0A Copyright © 2002, Award Software, Inc. AX45-8XN is model name of motherboard; R1. 20 is BIOS version. 117 AX45-8X / AX45-8XN Online Manual Product Registration Thank you for choosing AOpen product. [. . . ]