CHAINTECH ES-676M User's Guide download pdf (Page 9)

Chapter 3

connect a USB device to your system. Note that if this setting is disabled, you can still

temporarily use a USB keyboard during boot up so that you can enter BIOS and enable

this setting. If you pass the boot up stage without enabling this function, your PS/2

keyboard will no longer work.

USB Keyboard Support

Select Enabled if your system has a USB keyboard installed on the system board. If your

system has no USB keyboard, select Disabled in this field.

IDE HDD Block Mode

Block mode is also called block transfer, multiple commands, or multiple sector read/write.

If your IDE hard drive supports block mode, select Enabled to auto-detect the optimal

number of block read/writes per sector.

3-5 Power Management Setup

This section provides information on the Green PC power management functions. By

choosing the Power Management Setup option from the CMOS Setup Utility menu

(Figure 3-1), the screen below is displayed. This sample screen contains the

manufacturer's default values for the motherboard

ACPI Suspend Type

This feature allows user to select a suspend type for the operating system to turn off

peripherals devices, such as CD-ROM players, when they are not in use.

Power Management Option

Power management allows the computer to save electricity when it is not in use by

entering increasingly deep power saving modes.

HDD Power Down:

Shuts down any IDE hard disk drives in the system after a period of inactivity as set in

this user configurable field. This feature does not affect SCSI hard drives.

Suspend Mode

The Power Management function must not be set to disabled to enable this function. If

the system runs in Standby mode and the Suspend timer expires, all devices regulated by

power management will shut off and the CPU speed will be 0 MHz.

Video Off Option

This setting allows you to select the power-saving modes during which the monitor goes

blank.

Video Off Method

This function serves as both a screen saver and power saver for monitors. See the next

function, Video Off After, for setting the video timer.

1. Blank - BIOS will only blank the monitor's screen. The electricity saved in this mode is

negligible and this function is only used as a screen saver to prevent screen damage

while the screen is on but not in use.

V/H SYNC+Blank

- The system turns off the vertical and horizontal synchronization

ports, writes blanks to the VGA buffer and the monitor's electron gun turns off. This

function requires a monitor with Green features in order to take advantage of the

power saving function. If you enable this function and do not have a Green monitor,

Chapter 3

the result will be the same as if you had selected Blank. This function serves as both a

screen saver and a power saver.

3. DPMS Supported - Select this option if your video card supports the Display Power

Management Signaling (DPMS) standard (i.e., you have a monitor that supports

Green features). Use software supplied by your video subsystem to set video power

management options.

Modem Use IRQ

If your computer has a modem use this function to tell BIOS which IRQ is being

occupied by the modem card. When the system is in Green mode, the modem requires an

IRQ assignment to wake up the system and perform tasks. This assignment is complaint

with the APM 1.2 complaint operating systems.

Soft-Off by PWRBTN

When set to Delay 4 Sec., this function allows the power button to put the system in

Suspend, a power saving mode. When set to Instant-Off the Soft-Off by PWR-BTN

function is disabled and the computer turns completely off when the power button is

pressed.

Run VGABIOS if S3 Resume

Available options: Disable/Enable.

PWRON After PWR-Fail

This allows you to set whether you want your system to reboot after the power has been

interrupted. [Off] leaves your system off and [On] reboots your system. [Former-Sts]

sets your system back to the state it is before the power interruption. Available options

include [

Disabled

], [

Enabled

], [

Former-Sts

IRQ/Event Activity Detect

1. PS2KB Wakeup Select

When enabled, the system can be turned on by a PS2 keyboard hot key.

PS2KB Wakeup from S3/S4/S5

Available options: Disable/Enable.

USB Resume from S3

When enabled, the system is able to resume form S3 mode by a USB keyboard hot key

or mouse click.

PowerOn by PCI Card

When enabled, a PCI interface that receives a signal will wake up the system from soft

off and green mode.

5. Wake Up On LAN/Ring

When enabled, a LAN/modem that receives a signal will wake up the system from soft

off and green mode. You should connect the modem to the COM port and turn on the

resume event in green mode.

6. RTC Alarm Resume

When enabled, this setting allows the system to turn back on at a designated time of the

month. User must designate date of month and time of day. This function is only

available when using an ATX power supply and the Software Power-Off function to turn

off the computer. See the Software Power-Off feature in Section 2-3 of this manual for

instructions.

IRQs Activities Monitoring

This feature allows you to monitor a list of IRQ, Interrupt ReQuests. When an I/O device

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