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ADVANCED OPTIONS. The parameters in this screen are for system designers, service personnel, and technically competent users only. Do not reset these values unless you understand the consequences of your changes.
A table at the end of this section shows values and defaults for all fields.
NOTE: This section describes all fields offered by Award Software in this screen. Your system board designer may omit or modify some fields.
The precharge time is the number of cycles it takes for the RAS to accumulate its charge before DRAM refresh. If insufficient time is allowed, refresh may be incomplete and the DRAM may fail to retain data.
Select the number of CPU clock cycles the DRAM on your board requires before memory read or write operations. Changing the value from the setting appropriate for the installed DRAM may cause the system to hang.
This field determines the timing between the CAS and RAS strobe signals, used when DRAM is written to, read from, or refreshed. The lower number of clock cycles gives faster performance; and higher number of cycles gives more stable performance.
Sets the timing for reads from memory. The lower the timing numbers, the faster the system addresses memory. Selecting timing numbers lower than the installed DRAM is able to support can result in memory errors.
Sets the timing for writes to memory. The lower the timing numbers, the faster the system addresses memory. Selecting timing numbers lower than the installed DRAM is able to support can result in memory errors.
The chipset can "speculate" on a DRAM read address, thus reducing read latencies. The CPU issues a read request containing the data memory address. The DRAM controller receives the request. When this field is Enabled,, the controller issues the read command slightly before it has finished decoding the data address.
The values in this field are set by the system board designer, depending on the DRAM installed. Do not change the values in this field unless you change specifications of the installed DRAM or the installed CPU.
The values in this field are set by the system board designer, depending on the DRAM installed. Do not change the values in this field unless you change specifications of the installed DRAM or the installed CPU.
The values in this field are set by the system board designer, depending on the DRAM installed. Do not change the values in this field unless you change specifications of the installed DRAM or the installed CPU.
Selecting Enabled allows caching of the system BIOS ROM at F0000h-FFFFFh, resulting in better system performance. However, if any program writes to this memory area, a system error may result.
Selecting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh, resulting in better video performance. However, if any program writes to this memory area, a system error may result.
The I/O recovery mechanism adds bus clock cycles between PCI-originated I/O cycles to the ISA bus. This delay takes place because the PCI bus is so much faster than the ISA bus.
These two fields let you add recovery time (in bus clock cycles) for 16-bit and 8-bit I/O.
You can reserve this area of system memory for ISA adapter ROM. When this area is reserved, it cannot be cached. The user information of peripherals that need to use this area of system memory usually discusses their memory requirements.
Select Enabled only if your hard drives support block mode.
The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for each of up to four IDE devices that the internal PCI IDE interface supports. Modes 0 through 4 provide successively increased performance. In Auto mode, the system automatically determines the best mode for each device.
The chipset contains a PCI IDE interface with support for two IDE channels. Select Enabled to activate the primary and/or secondary IDE interface. Select Disabled to deactivate this interface, if you install a primary and/or secondary add-in IDE interface.
Select Enabled if you install a secondary add-in IDE interface in a PCI slot.
Peer concurrency means that more than one PCI device can be active at a time.
Select Enabled if your system has a floppy disk controller (FDC) installed on the system board and you wish to use it. If you install an add-in FDC or the system has no floppy drive, select Disabled in this field.
Select a logical COM port address for the first and second serial ports.
Select a logical LPT port address for the physical parallel port.
Select an operating mode for the onboard parallel (printer) port. Select Normal unless you are certain both your hardware and software support EPP or ECP mode.
Normal
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PC AT parallel port
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Field Values and Defaults DRAM RAS# Precharge Time 4 (BIOS & Setup defaults) 3 DRAM R/W Leadoff Timing 7 (BIOS & Setup defaults) 6 Fast RAS to CAS Delay 3 (BIOS & Setup defaults) 2 DRAM Read Burst Timing x2222 x3333 x3222 x4444 (BIOS & Setup defaults) DRAM Write Burst Timing x2222 x3333 x4444 (BIOS & Setup defaults) DRAM Speculative Leadoff Enabled Disabled (BIOS & Setup default) Fast MA to RAS# Delay CLK 2 (BIOS & Setup defaults) 1 CAS# Latency Clocks 3 (BIOS & Setup defaults) 2 RAS# Timing Clocks 3/5/8 (BIOS & Setup defaults) 3/4/7 System BIOS Cacheable Enabled (BIOS & Setup default) Disabled Video BIOS Cacheable Enabled (BIOS & Setup default) Disabled 8 Bit I/O Recovery Time 1 (Setup default) 2, 4 - 8 3 (BIOS default) NA 16 Bit I/O Recovery Time 1 (Setup default) 2 (BIOS default) 3 4 NA Memory Hole At 15M-16M Enabled Disabled (BIOS & Setup default) IDE HDD Block Mode Enabled (Setup default) Disabled (BIOS default) IDE PIO Modes Auto (BIOS & Setup default) Primary Master Mode 0 Primary Slave Mode 1 Secondary Master Mode 2 Secondary Slave Mode 3 Mode 4 On-Chip PCI IDE Enabled (BIOS & Setup default) Primary Disabled Secondary PCI Slot IDE 2nd Channel Enabled (BIOS & Setup default) Disabled Peer Concurrency Enabled Disabled (BIOS & Setup default) Onboard FDC Controller Enabled (BIOS & Setup default) Disabled Onboard Serial Port 1 COM1/3F8 (BIOS & Setup default) COM2/2F8 COM3/3E8 COM4/2E8 Disabled Onboard Serial Port 2 COM2/2F8 (BIOS & Setup default) COM3/3E8 COM4/2E8 Disabled COM1/3F8 Onboard Parallel Port 378/IRQ7 (Setup default) 278/IRQ5 (BIOS default) Disabled 3BC/IRQ7 Parallel Port Mode Normal (BIOS & Setup default) EPP ECP ECP+EPP
NOTE: This section describes all fields offered by Award Software in this screen. Your system board designer may omit or modify some fields.
A table at the end of this section shows values and defaults for all fields.
This category allows you to select the type (or degree) of power saving. See the section PM Timers for a brief description of Doze, Standby, and Suspend modes.
This table describes each power management mode:
Max Saving Maximum power management. Only Available for SL CPUs. Inactivity periods of Doze, Standby, and Suspend modes are 1 minute each. User Define Allows you to set each mode individually. When not disabled, each inactivity period ranges from 1 minute to 1 hour. Select time-out periods in the PM Timers section, on the following page. Min Saving Minimum power management. Inactivity periods of Doze, Standby, and Suspend modes are 1 hour each.
If Advanced Power Management (APM) is installed on your system, selecting Yes gives better power savings.
Determines the manner in which the monitor is blanked.
V/H SYNC+Blank System turns off vertical and horizontal synchronization ports and writes blanks to the video buffer. DPMS Select this option if your monitor supports the Display Power Management Signaling (DPMS) standard of the Video Electronics Standards Association (VESA). Use the software supplied for your video subsystem to select video power management values. Blank Screen System only writes blanks to the video buffer.
The following four modes are Green PC power saving functions that are user-configurable only during User Defined Power Management mode.
After the selected period of system inactivity, the CPU clock runs at slower speed while all other devices still operate at full speed.
After the selected period of system inactivity, the fixed disk drive and the video shut off while all other devices still operate at full speed.
After the selected period of system inactivity, all devices except the CPU shut off.
After the selected period of drive inactivity, the hard disk drive powers down while all other devices remain active.
When the system is in Doze or Standby mode, you may disable activity monitoring of some common interrupt requests so they do not wake up the system.
The default wake-up event is keyboard activity. In these wake-up event fields, you can turn On or Off four common sources of wake-up events. For example, if you have a modem on IRQ3, you can turn On IRQ3 as a wake-up event, so an interrupt from the modem can wake up the system. Or you may wish to turn Off IRQ12 (the PS/2) mouse as a wake-up event, so accidentally brushing the mouse does not awaken the system.
The On and Off settings of the following IRQs have the opposite effect of the settings in the previous Wake Up Events fields.
Setting any IRQ listed below to On exempts activity of the IRQ from waking up the system or resetting its inactivity-period timer. When set to Off, activity of the IRQ resets the timer or awakens the system.
Power Down & Resume Interrupt Requests
IRQ3 (COM 2 )
IRQ4 (COM 1)
IRQ5 (LPT 2)
IRQ6 (Floppy Disk)
IRQ7 (LPT 1)
IRQ8 (RTC Alarm)
IRQ9 (IRQ2 Redir)
IRQ10 (Reserved)
IRQ11 (Reserved)
IRQ12 (PS/2 Mouse)
IRQ13 (Coprocessor)
IRQ14 (Hard Disk)
IRQ15 (Reserved)
Field Values and Defaults Power Management Max Saving (Setup default) User Define Disable (BIOS default) Min Saving PM Control by APM Yes (BIOS & Setup default) No Video Off Method V/H SYNC+Blank (BIOS & Setup default) DPMS Blank Screen PM Modes Doze 1 minute to 1 hour Standby Disable (BIOS & Setup default) Suspend HDD Power Down 1 to 15 minutes Disable (BIOS & Setup default) IRQ3 (Wake-Up) On (Setup default) IRQ4 (Wake-Up) Off (BIOS default) IRQ8 (Wake-Up) IRQ12 (Wake-Up) IRQ3 (COM 2) On (BIOS & Setup default) Off IRQ4 (COM 1) On (BIOS & Setup default) Off IRQ5 (LPT 2) On (BIOS & Setup default) Off IRQ6 (Floppy Disk) On (BIOS & Setup default) Off IRQ7 (LPT 1) On (BIOS & Setup default) Off IRQ8 (RTC Alarm) On (BIOS & Setup default) Off IRQ9 (IRQ2 Redir) On (BIOS & Setup default) Off IRQ10 (Reserved) On (BIOS & Setup default) Off IRQ11 (Reserved) On (BIOS & Setup default) Off IRQ12 (PS/2 Mouse) On (BIOS & Setup default) Off IRQ13 (Coprocessor) On (BIOS & Setup default) Off IRQ14 (Hard Disk) On (BIOS & Setup default) Off IRQ15 (Reserved) On (BIOS & Setup default) Off
ADVANCED OPTIONS. The parameters in this screen are for system designers, service personnel, and technically competent users only. Do not reset these values unless you understand the consequences of your changes.
NOTE: This section describes all fields offered by Award Software in this screen. Your system board designer may omit or modify some fields.
A table at the end of this section shows values and defaults for all fields.
The Award Plug and Play BIOS can automatically configure Plug and Play-compatible devices. If you select Enabled, the Available IRQ fields disappear, as the BIOS automatically handles their configuration.
If an installed PCI device requires interrupt service, you may manually select an unused interrupt line for PCI IRQs. NA indicates the interrupt is assigned to an ISA bus device and is not available to any PCI slot.
Leave the IRQ trigger set at Level unless the PCI device assigned to the interrupt specifies Edge-triggered interrupts.
This field lets you select PCI IDE IRQ mapping or PC AT (ISA) interrupts. If your system does not have one or two PCI IDE connectors on the system board, select values according to the type of IDE interface(s) installed in your system (PCI or ISA). Standard ISA interrupts for IDE channels are IRQ14 for primary and IRQ15 for secondary.
Each PCI peripheral connection is capable of activating up to four interrupts: INT# A, INT# B, INT# C and INT# D. By default, a PCI connection is assigned INT# A. Assigning INT# B has no meaning unless the peripheral device requires two interrupt services rather than just one. Because the PCI IDE interface in the chipset has two channels, it requires two interrupt services. The primary and secondary IDE INT# fields default to values appropriate for two PCI IDE channels, with the primary PCI IDE channel having a lower interrupt than the secondary.
Field Values and Defaults PnP BIOS Auto-Config Enabled Disabled (BIOS & Setup default) 1st Available IRQ NA 10 (BIOS & Setup default) 3, 4, 5, 7, 9, 11, 12, 14, 15 2nd Available IRQ NA 11 (BIOS & Setup default) 3, 4, 5, 7, 9, 10, 12, 14, 15 3rd Available IRQ NA 9 (BIOS & Setup default) 3, 4, 5, 7, 10, 11, 12, 14, 15 4th Available IRQ NA 12 (BIOS & Setup default) 3, 4, 5, 7, 9, 10, 11, 14, 15 PCI IRQ Activated by Level (BIOS & Setup default) Edge PCI IDE IRQ Map To PCI-AUTO (BIOS & Setup default) PCI-SLOT1 PCI-SLOT2 PCI-SLOT3 ISA Primary IDE INT# A (BIOS & Setup default) B, C, D Secondary IDE INT# B (BIOS & Setup default) C, D, A
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