User manual AOPEN MX4GR

[. . . ] Overview Hardware Installation Troubleshooting & Technical Support Drivers & Utilities AWARD BIOS Setup Glossary Online Manual DOC. NO. : MX4GR-OL-E0203A MX4GR MX4GR 1 MX4GR W h a t 's i n t h i s m a n u a l Online Manual MX4GR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What's in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 You Must Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 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 RTC (Real Time Clock) 00:00:00 Auto switching This to ATX smart standby design power as long as AC power line is plugged. increases battery life if you still plug battery on motherboard. Flash ROM CMOS Backup by EEPROM 56 MX4GR CPU Ov er- c urre nt Prote ction 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 12V (Protected by power supply) 3. 3V (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. 57 MX4GR 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 CPU CPU Temperature CPU Voltage Detection Circuit AOpen H/W Monitoring Utility Power System Voltage 58 MX4GR Res ett a ble 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 Resettable Fuse, the motherboard can be resumed back to normal function after the fuse had done its protection job. Resettable Fuse 59 MX4GR 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, MX4GR implements 2200F capacitors, which is much larger than normal capacitor (1000 and 1500f) and it provides better stability for CPU power. 60 MX4GR 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. 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. 61 MX4GR 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. 62 MX4GR Online Manual D r iv e r a n d Ut i li t y There are motherboard drivers and utilities included in AOpen Bonus CD . You don't need to install all of them in order to boot your system. But after you finish the hardware installation, you have to install your operation system first (such as Windows 98) before you can install any drivers or utilities. Please refer to your operation system's installation guide. Note: Please follow recommended procedure to install Windows 2000 and Windows 98. 63 MX4GR A u t o - r u n Me n u f r o m B o n u s C D D i s c Online Manual You can use the auto-run menu of Bonus CD disc. Choose the utility and driver and select model name. 64 MX4GR Online Manual I ns t a ll i n g I n t e l ® C h i p s e t S o f t w a re I n s t a l la t i o n Ut il it y Windows 95/98 cannot recognize this chipset, because it was released before the Intel 845G chipset. [. . . ] http://www. aopen. com/tech/report/default. htm FAQ: The latest FAQ (Frequently Asked Questions) may contain a solution to your problem. http://www. aopen. com/tech/faq/default. htm Download Software: Check out this table to get the latest updated BIOS/utility and drivers. http://www. aopen. com/tech/download/default. htm 106 MX4GR Online Manual 5 6 7 News Group: Our support engineer or professional users on the news group probably had answered your problem. http://www. aopen. com/tech/newsgrp/default. htm Contact Distributors/Resellers: We sell our products through resellers and integrators. [. . . ]