User manual

Viglen BX130 – VIG385P User Manual
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The MTBF prediction is for:
? Redesigning the Motherboard for alternate components if failure rates exceed
reliability expectations
? Estimating repair rates and spare parts requirements
? MTBF data is calculated from predicted data @ 35 ?C.
? The MTBF prediction for the Motherboard is 120,402 hours.
Power Management
Power management is implemented at several levels, including:
? Software support through Advanced Configuration and Power Interface (ACPI)
? Hardware support:
o Power connector
o Fan connectors
o LAN wake capabilities
o Instantly Available PC technology
o Resume on Ring
o Wake from USB
o Wake from PS/2 devices
o Power Management Event signal (PME#) wake-up support
ACPI
ACPI gives the operating system direct control over the power management and
Plug and Play functions of a computer. The use of ACPI with the VIG385P
Motherboard requires an operating system that provides full ACPI support. ACPI
features include:
? Plug and Play (including bus and device enumeration)
? Power management control of individual devices, add-in boards (some add-in
boards may require an ACPI-aware driver), video displays, and hard disk drives
? Methods for achieving less than 15-watt system operation in the power-
on/standby sleeping state
? A Soft-off feature that enables the operating system to power-off the computer
? Support for multiple wake-up events
? Support for a front panel power and sleep mode switch
System States and Power States
Under ACPI, the operating system directs all system and device power state
transitions. The operating system puts devices in and out of low-power states based
on user preferences and knowledge of how devices are being used by applications.
Devices that are not being used can be turned off. The operating system uses