SUPER MICRO Computer H8DI3+-F Manual Do Utilizador

Chapter 1: Introduction

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This feature is available when the user enables the CPU overheat/Fan Fail warning 

function in the BIOS. This allows the user to defi ne an overheat temperature. When 

this temperature is exceeded or when a fan failure occurs, the Overheat/Fan Fail 

warning LED is triggered.

The 3-phase-switching voltage regulator for the CPU core can support up to 80A 

and auto-sense voltage IDs ranging from 0.8 V to 1.55V. This will allow the regulator 

to run cooler and thus make the system more stable.

This section describes the features of your serverboard that deal with power and 

power settings.

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.

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.

If a USB keyboard is the only keyboard in the system, it will function like a normal 

keyboard during system boot-up.

The power button can function as a system suspend button. When the user 

depresses the power button, the system will 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 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. The power will turn off and no power will be provided 

to the serverboard.