Super I/O

5.1.1 Key Features of Super I/O

The W83627DHG-P is from the Nuvoton's Super I/O product line. This family features the LPC (Low Pin Count) interface. This interface is more economical than its ISA counterpart. It has approximately forty pins less, yet it provides as great performance. In addition, the improvement allows even more efficient operation of software, BIOS, and device drivers.

The W83627DHG-P provides below key features

 Meet LPC Spec. 1.01

 Integrated hardware monitor functions

 Support ACPI (Advanced Configuration and Power Interface)

 Support up to 2 16550-compatible UARTs ports

 8042-based keyboard controller

 Smart Fan control system

 Five fan-speed monitoring inputs

 Four fan-speed controls

 GPIO

 Support PECI 1.0 and 1.1a Specifications 5.1.2 Sensor and Hardware Monitor

Hardware Monitor Screen allows the user to configure Fan speed control and show the monitored voltage to user. To access this screen from the BIOS Main screen, choose Server Management > Hardware Monitor.

Fan Speed Control management has two options.

 Auto – is for SC5299UP chassis support.

 300m, 900m, 1500m, 3000m can be selected according to the local altitude where the system is placed to assure the system is properly cooled. The default altitude setting is 900m.

Revision 2.4

Intel order number E65697-010 41

 Main Advance

d Security Server Management Boot Options

Boot Manager  Hardware monitor

Real-time Temperature and Voltage Status

Fan Controller Auto/Manual

CPU Fan Altitude 300m/900m/1500m/3000m Board Fan Altitude 300m/900m/1500m/3000m

Figure 15. Setup Utility — Hardware Monitor Screen Display Table 13. Setup Utility — Hardware Monitor Screen Fields

Setup Item Options Help Text

Voltage and

Temperature Status display monitored voltage, current Fan speed PWM and temperature CPU Fan Controller Auto

Manual

CPU temperature control policy Auto -Fan speed control setting by default

Manual -user adjust Fan speed control setting value manually CPU Fan Altitude 300m/900m/1500m/3000m Select CPU FAN defaultPWM according to altitude under Auto mode

Board Fan Altitude 300m/900m/1500m/3000m Select Board Fan default PWM according to altitude under Auto mode

Hysteresis 2 Degree Celsius 3 Degree Celsius

4 Degree Celsius

Hysteresis – is used to smoothing the FAN speed transition when temperature approaching temperature target upward or downward. Select Hysteresis to keep FAN at the same speed within the range

Default Fan PWM 40%

60%

80%

100%

Select Default FAN PWM to make FAN speed keep the invariable speed when temperature is below FSC temperature target at low user conditions. This delivers optimized acoustic level

Note: The two options of Hysteresis and Default Fan PWM apply to all the four fans

5.1.3 Fan controller (Manual)

Fan controller (Manual) allows the user to configure Fan speed control manually. To access this screen from the Main screen, choose Server Management > Hardware Monitor > Fan

controller (Manual).

[Manual] is designed for the third party chassis which supports four fan headers. Each of them has four minimum fan PWM output selections 40%, 60%, 80%, and 100% and associated with different cooling capabilities as well as different acoustic levels. The default PWM is 100% and can be customized to 40%, 60%, 80% according to the third party chassis cooling capability and acoustic requirement.

Hysteresis is used to prevent fan oscillation when temperature is crossing the target control temperature back and forth.

Revision 2.4

Intel order number E65697-010 43

 Main Advanc

Options Boot Manager  Hardware monitor

Real-time Temperature and Voltage Status

Fan Controller Manual

CPU Fan Hysteresis Default Fan PW M

[2 Degree Celsius/3 Degree Celsius/4 Degree Celsius [40%/60%/80%/100%]

System Fan Hysteresis

Default Fan PWM

[2 Degree Celsius/3 Degree Celsius/4 Degree Celsius [40%/60%/80%/100%]

Auxiliary Fan 1 Hysteresis

Default Fan PWM

[2 Degree Celsius/3 Degree Celsius/4 Degree Celsius [40%/60%/80%/100%]

Auxiliary Fan 2 Hysteresis

Default Fan PWM

[2 Degree Celsius/3 Degree Celsius/4 Degree Celsius [40%/60%/80%/100%]

Figure 16. Setup Utility — Fan controller (Manual) Display Table 14. Setup Utility — Hardware Monitor Screen Fields

Setup Item Options Help Text Comments

Voltage and Temperature Status

display monitored voltage, current Fan speed PWM and temperature CPU Fan Controller Auto

Manual

CPU temperature control policy Auto - Fan speed control setting by default

Manual - user adjust Fan speed control setting value manually

Setup Item Options Help Text Comments CPU Fan Altitude 300m/900m/1500m/3000m Select CPU FAN default PWM

according to altitude under Auto mode

System Fan Altitude 300m/900m/1500m/3000m Select Board Fan default PWM according to altitude under Auto mode

Hysteresis 2 Degree Celsius 3 Degree Celsius 4 Degree Celsius

Hysteresis – is used to smoothing the FAN speed transition when temperature approaching temperature target upward or downward. Select Hysteresis to keep FAN at the same speed within the range

Default Fan PWM 40%

60%

80%

100%

Select Default FAN PWM to make FAN speed keep the invariable speed when temperature is below FSC temperature target at low customized conditions. This delivers optimized acoustic level

The change can

Note: the two options of Hysteresis and Default Fan PWM apply to all the four Fans

5.1.4 Voltage and Temperature Status Screen

Display monitored voltage, current Fan speed PWM and temperature

 Server Management 

Real time Temperature and PWM:

CPU Fan PWM

Figure 17. Setup Utility — Voltage and Temperature Status Screen Table 15. Setup Utility — Voltage and Temperature Status Fields

Revision 2.4

Intel order number E65697-010 45

Setup Item Comments

CPU Fan PWM Get and display CPU fan PWM periodically System Fan PWM Get and display system fan PWM periodically System temperature Get and display current system temperature

monitored by system sensor

+Vccp Get and display +Vccp voltage periodically +12V Get and display +12 voltage periodically +3.3V Get and display +3.3 voltage periodically +5.0V Get and display +5.0V voltage periodically +1.5V Get and display +1.5V voltage periodically +1.05V Get and display +1.05 voltage periodically

+3.3V(standby) Get and display +3.3V(standby)voltage periodically