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Chapter 4: BIOS
4-17
Hardware Monitor Logic
CPU Temperature Threshold
This option allows the user to set a CPU temperature threshold that will
activate the alarm system when the CPU temperature reaches this pre-
set temperature threshold. The options are 70
o
C, 75
o
C, 80
o
C and 85
o
C.
Highlight this and hit <Enter> to see monitor data for the following items:
CPU1 Temperature: This item displays CPU1 Temperature.
CPU2 Temperature: This item displays CPU2 Temperature.
System Temperature: This item displays the System Temperature.
Fan Speed Control Modes
This feature allows the user to decide how the system controls the speeds
of the onboard fans. The CPU temperature and the fan speed are correlative.
When the CPU on-die temperature increases, the fan speed will also
increase, and vise versa. If the option is set to “3-pin fan”, the fan speed
is controlled by voltage. If the option is set to “4-pin”, the fan speed will be
controlled by Pulse Width Modulation (PWM). Select “3-pin” if your chassis
came with 3-pin fan headers. Select “4-pin” if your chassis came with 4-pin
fan headers. Select “Workstation” if your system is used as a Workstation.
Select “Server” if your system is used as a Server. Select “Disable” to
disable the fan speed control function to allow the onboard fans to run at
the full speed (12V) at all the time. The Options are: 1. Disable, 2. 3-pin
(Server), 3. 3-pin (Workstation), 4. 4-pin (Server) and 5. 4-pin (Workstation).
Fan 1-FAN8: If the feature of Auto Fan Control is enabled, BIOS will
automatically display the status of the fans indicated in this item.
Vcore A/Vcore B: These items display the Voltage status of CPU A and
CPU B.
P3V3: This item displays the +3.3V voltage status.
P5V: This item displays the +5V voltage status.
N12V: This item displays the -12V voltage status.
P12V: This item displays the +12V voltage status.
VDD: This item displays the VDD status.
P5Vsb: This item displays the voltage status of +5V Standby power.
P3P3Vsb: This item displays the voltage status of +3.3V Standby power.