User manual AOPEN AK77600N

[. . . ] AK77-600N Online Manual AK77-600N DOC. NO. : AK77600N-OL-E0307B 1 AK77-600N What's in this manual Online Manual AK77-600N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What's in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 You Must Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] You can use JP28 to enable or disable this function, which could resume your system from suspend mode with keyboard or mouse installed. The factory default setting is set to "Disable"(1-2), and you may enable this function by setting the jumper to pin2-3. JP28 KB/Mouse Wake-up Jumper 1 Disable (Default) Enable 61 AK77-600N STBY LED Online Manual STBY LED is AOpen's considerate design that aims at providing you friendly system information. The STBY LED will light up when power is provided to the motherboard. This is a convenient indication for you to check the system power status in many circumstances such as power on/off, stand-by mode and RAM power status during Suspend to RAM mode. System Power LED Warning: Do not install or remove the DIMM module or others devices when the STBY LED lights on. 62 AK77-600N AGP Protection Technology and AGP LED Online Manual W i t h t h e o u ts t a n d i n g R & D a b i l i t y o f A O p e n a n d i t s s p e c i a l l y d e v e l o p e d c i r c u i t , t h i s m o d e l i m p l e m e n ts a b l e n d n e w t e c h n o l o g y t o p ro t ec t yo u r m o t h e rb o a rd f ro m b ei n g d am a g e d b y o v e r-v ol ta gi n g of A GP ca rd . W h e n A GP P ro t ec ti o n Te c h n ol o g y is i m pl e m ented, t h i s m o t h e r b o a r d w i l l a u t o m a t i c a l l y d e t e c t t h e v o l t a g e o f A G P c a r d a n d p r e v e n t y o u r c h i ps e ts f r o m b e i n g b u r n t o u t . P l e a s e n o t e t h at if yo u i n s tal l a A GP c ard wi t h 3. 3 V, wh i c h is n o t s u pp o rt e d , t h e A GP L E D o n th e m o t he rb o a rd wil l li g h t u p t o wa rn yo u t h e p os si bl e d am a g e of t h e e xc e e di n g v ol ta g e . Yo u m a y c on tac t yo u r A GP c a rd v e n d o r f o r f u rt h e r su p p o rt . AGP LED Warning: It is strongly recommended not to install a 3. 3V AGP card, which is not supported. When you do so, the AGP LED on the motherboard will light up to warn you the possible damage. 63 AK77-600N Bat te ry- less a nd Long Lif e Des ign Online Manual This Motherboard implements Flash ROM and a special circuit that allows you to save your current CPU and CMOS Setup configurations without using the battery. 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 as long RTC (Real Time Clock) 00:00:00 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 64 AK77-600N R e s e t a bl e F u s e Online Manual Traditional motherboard has fuse for Keyboard and USB port to prevent over-current or shortage. These fuses are soldered onboard that user cannot replace it when it is damaged (did the job to protect motherboard), and the motherboard remains malfunction. With expensive Resetable Fuse, the motherboard can resume back to normal function after fuse had done its protection job. Resetable Fuse 65 AK77-600N 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, this motherboard implements 2200F capacitor, which is much larger than normal capacitor (1000 or 1500F) and it provides better stability for CPU power. 66 AK77-600N 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). 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. 67 AK77-600N Online Manual P H O E N I X- AW A RD B I O S System parameters can be modified by going into BIOS Setup menu, this menu allows you to configure the system parameters and save the configuration into the 128 bytes CMOS area, (normally in the RTC chip or in the main chipset). The Phoenix-Award BIOSTM that installed in the Flash ROM of the motherboard is a custom version of an industry standard BIOS. The BIOS provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports. [. . . ] For example: Part No. Serial No. Part No. Serial No. P/N: 91. 88110. 201 is part number, S/N: 91949378KN73 is serial number. 108 AK77-600N 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. AK77-600N is model name of motherboard, R1. 02 is BIOS version. 109 AK77-600N 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. To register your product will ensure the high quality of services from AOpen. [. . . ]