User`s manual

AIMB-740/741 User’s Manual 84
Chapter 9 Onboard Security Setup
9.1 Introduction
The AIMB-740/741's hardware monitor is designed with Winbond
W83782D. Onboard security (OBS) functions monitor key hardware.
They help you maintain your system's stability and durability. The
AIMB-740/741 can monitor 5 sets of system positive voltages, 2 sets of
system negative voltages, CPU cooling fan speed, and CPU temperature.
The positive system voltage sets which can be monitored include:
• CPU core voltage: 1.3 V ~ 3.3 V, according to Intel specifications.
• Transmission voltage from CPU to chipset: typically 1.8 V.
• Chipset voltage: typically 3.3 V.
• Main voltage: +5 V, +12 V.
The negative system voltage sets which can be monitored include:
• Main voltage: -5 V, -12 V.