User manual AOPEN MX6B-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 AWARD BIOS 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). The BIOS Setup Main Menu appears as follows. Tip: Choose "Load Setup Defaults" for recommended optimal performance. [. . . ] 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. 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. 3-21 AWARD BIOS Power Management à VGA Active Monitor VGA Active Monitor Enabled Disabled To enable or disable the detection of VGA activity for power down state transition. Power Management à Soft-Off by PWR-BTTN Soft-Off by PWRBTTN Delay 4 sec. Instant-Off This is a specification of ACPI and supported by hardware. is selected, the soft power switch on the front panel can be used to control power On, Suspend and Off. If the switch is pressed for less than 4 seconds during power On, the system will go into Suspend mode. If the switch is pressed for longer than 4 seconds, the system will be turned Off. If Instant-Off is selected the soft power switch is only used to control On and Off, so there is no need to press it for 4 seconds, and there is no Suspend. Power Management à Wake On RTC Timer Wake On RTC Timer By Date By Week Disabled This option lets you enable or disable the RTC Wake Up function. Power Management à Date (of Month) Date (of Month) 0 1 . . . . . 31 This item is displayed when you enable the Wake On RTC Timer option. For Example, setting to 15 will wake up the system on the 15th day of every month. Note: Setting this item to 0 will wake up the system on the specified time (which can be set in the Wake On RTC Timer ) every day. 3-22 AWARD BIOS Power Management à Time (hh:mm:ss) Time (hh:mm:ss) hh:mm:ss This item is displayed when you enable the Wake On RTC Timer option. Here you can specify what time you want to wake up the system. 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. OS2 has periodically IRQ8 (RTC) interruptions, If IRQ8 is not set to Disabled, OS/2 may fail to go into Doze/Standby/Suspend mode. Power Management à IRQ [3-7, 9-15], NMI IRQ [3-7, 9-15], NMI Enabled Disabled To enable or disable the detection of IRQ3-7, IRQ915 or NMI interrupt events for power down state transition. Power Management à Primary IDE 0 Power Management à Primary IDE 1 Power Management à Secondary IDE 0 Power Management à Secondary IDE 1 Power Management à Floppy Disk Power Management à Serial Port Power Management à Parallel Port Primary IDE 0 Enabled Disabled These items enable or disable the detection of IDE, floppy, serial and parallel port activities for power down state transition. Actually it detects the read/write to/from I/O port. 3-23 AWARD BIOS 3. 6 PNP/PCI Configuration Setup The PNP/PCI Configuration Setup allows you to configure the ISA and PCI devices installed in your system. The following screen appears if you select the option "PNP/PCI Configuration Setup" from the main menu. PNP/PCI Configuration à PnP OS Installed PnP OS Installed Yes No Normally, the PnP resources are allocated by BIOS during POST (Power-On Self Test). If you are using a PnP operating system (such as Windows 95), set this item to Yes to inform BIOS to configure only the resources needed for booting (VGA/IDE or SCSI). The rest of system resources will be allocated by PnP operating system. PNP/PCI Configuration à Resources Controlled By Resources Controlled by Auto Manual Setting this option to Manual allows you to individually assign the IRQs and DMAs to the ISA and PCI devices. Set this to Auto to enable the autoconfiguration function. 3-24 AWARD BIOS PNP/PCI Configuration à Reset Configuration Data Reset Configuration Data Enabled Disabled In case conflict occurs after you assign the IRQs or after you configure your system, you can enable this function, allow your system to automatically reset your configuration and reassign the IRQs, DMAs, and I/O address. PNP/PCI Configuration à IRQ3 (COM2) PNP/PCI Configuration à IRQ4 (COM1) PNP/PCI Configuration à IRQ5 (Network/Sound or Others) PNP/PCI Configuration à IRQ7 (Printer or Others) PNP/PCI Configuration à IRQ9 (Video or Others) PNP/PCI Configuration à IRQ10 (SCSI or Others) PNP/PCI Configuration à IRQ11 (SCSI or Others) PNP/PCI Configuration à IRQ12 (PS/2 Mouse) PNP/PCI Configuration à IRQ14 (IDE1) PNP/PCI Configuration à IRQ15 (IDE2) IRQ 3 Legacy ISA PCI/ISA PnP If your ISA card is not PnP compatible and requires a special IRQ to support its function, set the selected IRQ to Legacy ISA. This setting informs the PnP BIOS to reserve the selected IRQ for the installed legacy ISA card. Take note that PCI cards are always PnP compatible (except old PCI IDE card). PNP/PCI Configuration à DMA 0 PNP/PCI Configuration à DMA 1 PNP/PCI Configuration à DMA 3 PNP/PCI Configuration à DMA 5 PNP/PCI Configuration à DMA 6 PNP/PCI Configuration à DMA 7 DMA 0 Legacy ISA PCI/ISA PnP If your ISA card is not PnP compatible and requires a special DMA channel to support its function, set the selected DMA channel to Legacy ISA. This setting informs the PnP BIOS to reserve the selected DMA channel for the installed legacy ISA card. Take note that PCI card does not require DMA channel. 3-25 AWARD BIOS PNP/PCI Configuration à PCI IDE IRQ Map To PCI IDE IRQ Map To ISA PCI-Slot1 PCI-Slot2 PCI-Slot3 PCI-Slot4 PCI-Auto Some old PCI IDE add-on cards are not fully PnP compatible. [. . . ] If you set a password, the system prompts for the correct password before boot or access to Setup. When you type the characters, they appear as asterisks on the password screen box. At the next prompt, re-type your password and press again to confirm the new password. After the password entry, the screen automatically reverts to the main screen. 2. [. . . ]