NCT6627UD Nuvoton Technology Corporation of America, NCT6627UD Datasheet - Page 36

• Manufacturer Part Number: NCT6627UD
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of NCT6627UD

• Lead Free Status / Rohs Status: Supplier Unconfirmed

7. HARDWARE MONITOR
7.1
The W83627UHG monitors several critical parameters in PC hardware, including power supply voltages, fan
speeds, and temperatures, all of which are very important for a high-end computer system to work stably and
properly. In addition, proprietary hardware reduces the amount of programming and processor intervention to
control cooling fan speeds, minimizing ambient noise and maximizing system temperature and reliability.
The W83627UHG can simultaneously monitor all of the following inputs:
These inputs are converted to digital values using the integrated, eight-bit analog-to-digital converter (ADC).
In response to these inputs, the W83627UHG can generate the following outputs:
The W83627UHG provides hardware access to all monitored parameters through the LPC or I
software access through application software, such as Nuvoton’s Hardware Doctor
W83627UHG can generate pop-up warnings or beep tones when a parameter goes outside of a user-specified
range.
The rest of this section introduces the various features of the W83627UHG hardware-monitor capability. These
features are divided into the following sections:
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General Description
Eight analog voltage inputs (four internal voltages VBAT, 5VSB, 5VCC and AVCC power; four external
voltage inputs)
Two fan tachometer inputs
Two remote temperatures, using either a thermistor or the CPU thermal diode (voltage or current mode
measurement method)
One case-open detection signal.
Two PWM (pulse width modulation) or DC fan outputs for the fan speed control
Beep tone output for warnings
SMI#
OVT# signals for system protection events
Access Interfaces
-27-
W83627UHG/NCT6627UD
Publication Release Date: October 26, 2010
TM
, or BIOS. In addition, the
2
C interface and
Revision 1.7