User manual AOPEN AX5T-AWD

[. . . ] Chapter 3 Award BIOS This chapter tells how to configure the system parameters. You may update your BIOS via AWARD Flash Utility. Important: Because the BIOS code is the most often changed part of the mainboard design, the BIOS information contained in this chapter (especially the Chipset Setup parameters) may be a little different compared to the actual BIOS that came with your mainboard. 3. 1 Entering the Award BIOS Setup Menu The BIOS setup utility is a segment of codes/routines residing in the BIOS Flash ROM. This routine allows you to configure the system parameters and save the configuration into the 128 byte CMOS area, (normally in the RTC chip or directly in the main chipset). To enter the BIOS Setup, press during POST (Power-On Self Test). [. . . ] But power must be kept On to detect activities from modem, keyboard/mouse and returns the system to full power. The system activities is detected by monitoring the IRQ signals. Suspend to Hard Drive saves system status, memory and screen image into hard disk, then the power can be totally Off. Next time, when power is turned On, the system goes back to your original work within just few seconds. You need utility ZVHDD to reserve disk space. Refer to section 3. 16 "Suspend to Hard Drive" for more information". Power Management à Throttle Duty Cycle 3-21 AWARD BIOS Throttle Duty Cycle 12. 5 % 25. 0 % 37. 5 % 50. 0 % 62. 5 % 75. 0 % 87. 5 % Clock Throttling means at the Doze/Standby state, the CPU clock count in a given time (not the frequency) is reduced to the ratio specified in this parameter. Actually, the period per CPU clock is not changed. For example, a 66MHz CPU clock remains the same 30ns clock period when system goes into Doze/Suspend. The chipset generates the STPCLK (stop clock) signal periodically to prevent CPU for accepting clock from clock generator. For full power on, the CPU can receive 66M count in one second. If the Slow Clock Ratio is set to 50%, the CPU will only receive 33M clock count in one second. This will effectively reduce CPU speed as well as CPU power. Power Management à VGA Active Monitor VGA Activity Monitor Enabled Disabled To enable or disable the detection of VGA activity for power down state transition. Power Management à Power Bottom Override Power Bottom Override Disabled Enabled This is a specification of ACPI and supported by hardware. When Enabled, the soft power switch on the front panel can be used to control power On, Suspend and Off. If the switch is pressed less than 4 sec during power On, the system will go into Suspend mode. If the switch is pressed longer than 4 sec, the system will be turned Off. The default setting is Disabled, soft power switch is only used to control On and Off, there is no need to press 4 sec, and there is no Suspend. Power Management à RTC WakeUp Timer 3-22 AWARD BIOS RTC WakeUp Timer Disabled Wake Up Power Off The RTC WakeUp Timer can be programmed at a specified date/time to wakeup the system. The Date/Time is set by " WakeUp Date (of Month)" and "WakeUp Time (hh:mm:ss)". For automatic power off, you can select the idle timer in "Doze Mode" + "Standby Mode" + "Suspend Mode" to power off after system is detected without any activities. Power Management à WakeUp Date (of Month) Date (of Month) Alarm 0 1 2 . . . . . . 30 31 This item selects the date of month to on which to wake up or power off the system. Set to 0 means everyday. Power Management à Wake Up Time (hh:mm:ss) Time (hh:mm:ss) Alarm 07:00:00 . . This item selects the time at which to wake up or power off the system. The format is hour:minute:second, note that hour is in 24 hours form. Power Management à IRQ 8 Clock Event IRQ 8 Clock Event Enabled Disabled To enable or disable the detection of IRQ8 (RTC) event for power down state transition. [. . . ] For details, refer to the installation manual of your NCR 53C810 SCSI card. 3-37 AWARD BIOS 3. 15 BIOS Flash Utility The BIOS Flash utility allows you to upgrade the system BIOS. To get the AOpen Flash utility and the upgrade BIOS file, contact your local distributor or visit our homepage at http://www. aopen. com. tw. Please make sure that you have the correct BIOS ready, the BIOS filename is normally like AP5TR110. BIN, which means model AP5T BIOS revision 1. 10. There are two useful programs, Checksum utility CHECKSUM. EXE and AOpen Flash utility AOFLASH. EXE. [. . . ]