Acpi Features - Supermicro X6DVA-4G2 User Manual

TM2/CPU VRM Overheat
When the CPU reaches 70
CPU Voltage will decrease to reduce CPU power consumption. When CPU tem-
perature reaches 78
state. The Overheat LED and the Alarm Buzzer will be turned on. The CPU slows
down as well. To resume the CPU speed, go to the Health Monitor Setting in the
BIOS and reset CPU Overheat Temperature.
VRM Protection
When the CPU VRM temperature reaches the threshold preset by the user in the
BIOS, the system will go into the TM2 Mode. The CPU will slow down, the VRM
current will drop to prevent the VRM from overheat. (The settings are: 88
0
108 C.) (*Default)
Auto-Switching Voltage Regulator for the CPU Core
The auto-switching voltage regulator for the CPU core can support up to 20A cur-
rent. This will allow the regulator to run cooler and thus make the system more
stable.
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ACPI Features

ACPI stands for Advanced Confi guration and Power Interface. The ACPI specifi ca-
tion defi nes a fl exible 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
to 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 confi guration control. ACPI leverages the Plug
and Play BIOS data structures while providing a processor architecture-independent
implementation that is compatible with the Windows XP, Windows 2003, Windows
Server 2003 operating systems.
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.
0
C and above (Overheat), the CPU will slow down and
0
C (*Default) and above, the system will go into the throttling
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Chapter 1: Introduction
0 0
C, *98 C,