User manual AOPEN AK77400GN

[. . . ] AK77-400G / AK77-400GN Online Manual AK77-400G / AK77-400GN DOC. NO. : AK77400GN-OL-E0312C 1 AK77-400N / AK77-400GN What's in this manual Online Manual AK77-400G / AK77-400GN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What's in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 You Must Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 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 can increases battery life if you still had battery plugged on motherboard. Flash ROM CMOS Backup by EEPROM 54 AK77-400N / AK77-400GN 330 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, this motherboard implements 3300F capacitor, which is much larger than normal capacitor (1000 or 1500F) and it provides better stability for CPU power. 55 AK77-400N / AK77-400GN Online Manual The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the Pentium IV, or when overclocking). A typical CPU core voltage is 2. 0V, so a good design should control voltage between 1. 860V and 2. 140V. That is, the transient must be below 280mV. Below is a timing diagram captured by a Digital Storage Scope, it shows the voltage transient is only 143mv even when maximum 60 current is applied. Note: This diagram for example only; it may not exactly be the same motherboard. 56 AK77-400N / AK77-400GN A O C o n f i g Ut i li ty AOpen Online Manual always dedicated to provide users a much friendlier computer environment. We now bring you a comprehensive system detective utility. AOconfig is a Windows based utility with user-friendly interface that allows users to obtain information of the operation system and hardware such as motherboard, CPU, memory, PCI devices and IDE devices. The powerful utility also displays the version of BIOS and firmware for your convenience of maintenance. Moreover, AOconfig allows users to save information in *. BMP or *. TXT format which users may collect the system information in detail and send them to AOpen directly for technical support or further diagnosis of system problem. 1. The system page shows the detail information of the motherboard, the operating system, the processor, and BIOS version. 2. The PCI device page shows the configurations of all PCI devices installed on your motherboard. 57 AK77-400N / AK77-400GN 3. This page presents the IDE devices information, such as the serial number, the manufacturer, the firmware version, and capacity. Online Manual 4. From this page, users may obtain the technical support information of AOpen. Moreover, detailed information could be saved in . bmp or . txt format. NOTE: AOconfig can be used in Windows 98SE/ME, NT4. 0/2000, or Windows XP. Please be informed that AOconfig can only be operated in a system equipped with an AOpen motherboard. Meanwhile, all applications must be closed before starting AOconfig. 58 AK77-400N / AK77-400GN EzClock Online Manual Have you ever thought how great it would be if you can adjust the frequency setting on your motherboard under Windows environment and be a real master of your system?Everybody knows that the ratio and frequency setting are key factors to influence the system performance; however, it's absolutely not an easy task for an amateur to adjust the setting value. On most traditional motherboards, you have to get into BIOS screen for the frequency and reboot the system again and again. But from now on, you don't surfer the boring stuffs anymore. With brand-new and user-friendly EzClock that AOpen specially designs for his users, you can adjust those important values as you please and think of suitable. [. . . ] For example: Part No. Serial No. Part No. Serial No. P/N: 91. 88110. 201 is part number, S/N: 91949378KN73 is serial number. 92 AK77-400N / AK77-400GN Mo de l na m e a n d B IO S v ers i o n Online Manual Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). 01. 2003 AOpen Inc. Award Plug and Play BIOS Extension v1. 0A Copyright © 2003, Award Software, Inc. AK77-400GN is model name of motherboard, R1. 00 is BIOS version. 93 AK77-400N / AK77-400GN Online Manual Pro d u ct R egi st rati o n Thank you for choosing AOpen product. AOpen encourages you to spend few minutes in completing the following product registration. To register your product will ensure the high quality of services from AOpen. [. . . ]