
Viglen CX135 User Guide – Version 1.0
10
ACPI Features
ACPI stands for Advanced Configuration and Power Interface. The ACPI
specification defines a flexible and abstract hardware interface that provides a
standard way to integrate power management features throughout a PC system,
including its hardware, operating system and application software. This enables the
system automatically turn on and off peripherals such as CD-ROMs, network cards,
hard disk drives and printers. This also includes consumer devices connected to the
PC such as VCRs, TVs, telephones and stereos.
In addition to enabling operating system-directed power management, ACPI
provides a generic system event mechanism for Plug and Play and an operating
system-independent interface for configuration control. ACPI leverages the Plug and
Play BIOS data structures while providing a processor architecture-independent
implementation that is compatible with Windows 2000, Windows XP and Windows
Server 2003.
Microsoft OnNow
The OnNow design initiative is a comprehensive, system-wide approach to system
and device power control. OnNow is a term for a PC that is always on but appears to
be off and responds immediately to user or other requests.
Slow Blinking LED for Suspend-State Indicator
When the CPU goes into a suspend state, the chassis power LED will start blinking
to indicate that the CPU is in suspend mode. When the user presses any key, the
CPU will wake-up and the LED will automatically stop blinking and remain on.
Main Switch Override Mechanism
When an ATX power supply is used, the power button can function as a system
suspend button to make the system enter a SoftOff state. The monitor will be
suspended and the hard drive will spin down. Depressing the power button again will
cause the whole system to wake-up. During the SoftOff state, the ATX power supply
provides power to keep the required circuitry in the system alive. In case the system
malfunctions and you want to turn off the power, just depress and hold the power
button for 4 seconds. This option can be set in the Power section of the BIOS Setup
routine.
Summary of Contents for CX135
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Page 23: ...Viglen CX135 User Guide Version 1 0 22 Figure 11 80 pin SCA Connectors ...
Page 77: ...Viglen CX135 User Guide Version 1 0 76 B 2 Bootblock Recovery Codes ...
Page 78: ...Viglen CX135 User Guide Version 1 0 77 B 3 Uncompressed Initialization Codes ...
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