User manual AOPEN AX4BE

[. . . ] Overview Hardware Installation Troubleshooting & Technical Support Drivers & Utilities AWARD BIOS Setup Glossary Online Manual DOC. NO. : AX4BE-OL-E0208A AX4BE AX4BE 1 AX4BE W h a t 's i n t h i s m a n u a l Online Manual AX4BE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What's in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 You Must Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] ATX Stand-by Power Battery Auto Switch RTC (Real Time Clock) 00:00:00 Auto switching to ATX standby power 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 58 AX4BE CP U O v e r - c ur r e nt P r ot e c t i on Online Manual Over Current Protection has been popularly implemented on ATX 3. 3V/5V/12V switching power supply for a while. However, new generation CPU is able to use regulator of different voltages to transfer 12V to CPU voltage (for example, to 2. 0V). This motherboard is with switching regulator onboard that supports CPU over-current protection, and it applies to 3. 3V/5V/12V power supply for providing full line over-current protection. 5V (Protected by power supply) ATX Switching Power Supply 3. 3V (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 try to prevent any human operating mistake, there is still certain risk that CPU, memory, HDD, add-on cards installed on this motherboard may be damaged because of component failure, human operating error or unknown nature reason. AOpen cannot guaranty the protection circuit will always work perfectly. 59 AX4BE H a r d w a r e Mo n i t o r i n g Online Manual This motherboard implements a hardware monitoring system. As you turn on your system, this smart design will continue to monitor your system's working voltage, fan status and CPU temperature. If any of these systems' status goes wrong, there will be an alarm through the chassis external speaker or buzzer of motherboard (if existed) to warn the user. Fan Fan Speed Detection Circuit AOpen H/W Monitoring Utility CPU CPU Temperature CPU Voltage Power System Voltage 60 AX4BE Resetable Fuse Online Manual Traditional motherboard has fuse for Keyboard and USB port to prevent over-current or shortage. These fuses are soldered onboard that when it is broken (function as protecting the motherboard), user still cannot replace it and the motherboard is still malfunctioning. With expensive Resetable Fuse, the motherboard can be resumed back to normal function after the fuse had done its protection job. Resetable Fuse 61 AX4BE 220 0 F L o w ES R Ca p a c it o r 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, AX4BE implements 2200F capacitors, which is much larger than normal capacitor (1000 and 1500f) and it provides better stability for CPU power. 62 AX4BE L a y o u t ( F r e q u e n c y I s o l a t i o n Wa l l ) Online Manual For high frequency operation, especially overclocking, layout is the most important factor to make sure chipset and CPU working in stable condition. The layout of this motherboard implements AOpen's unique design called " Frequency Isolation Wall". Separating each critical portion of motherboard into regions where each region operates in a same or similar frequency range to avoid cross talk and frequency interference between each region's operations and condition. The trace length and route must be calculated carefully. For example, the clock trace must be equal length (not necessarily as short as possible) so that clock skew will be controlled 12 within few a pico second (1/10 Sec) Note: This diagram for example only, it may not be exactly the same as this motherboard. 63 AX4BE Enlarged Aluminum Heatsink Online Manual Cool down CPU and Chipset is important for system reliability. Enlarged aluminum heat sink provides better heat consumption especially when you are trying to over clocking the CPU. 64 AX4BE Open Ju keBox Player Online Manual Here we are pleased to provide you a brand-new powerful interface--Open JukeBox. Without any cost you can have your PC turn into a fashionable CD player!This latest Open JukeBox motherboard aims at helping you directly operate your CD player on the PC without any hassle of entering Windows operation system. 65 AX4BE How Your Open JukeBox Works Online Manual The operation of Open JukeBox Player is the same as other CD players. By pressing specific keys on the keyboard you will find playing Open JukeBox Player couldn't be easier than the traditional CD Players. Below is the function description of respective buttons. Power-Off Button Display Screen Boot to Operation System Function Key Power: Pressing O, to directly power off your computer with no hassle of entering Windows Operation System. [. . . ] For example: Part No. Serial No. Part No. P/N: 91. 88110. 201 is part number, S/N: 91949378KN73 is serial number. 110 AX4BE Mo de l na me a n d B IO S v ers i on Online Manual Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). For example: AX4BE R1. 20 Aug. 01. 2002 AOpen Inc. Award Plug and Play BIOS Extension v1. 0A Copyright © 1998, Award Software, Inc. AX4BE is model name of motherboard; R1. 20 is BIOS version. 111 AX4BE Online Manual Pr o d uc t R e g is t r at i o n Thank you for choosing AOpen product. AOpen encourages you to spend few minutes in completing the following product registration. [. . . ]