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Chapter 7: BIOS
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
o
o
o
o
threshold. The options are 70
C, 75
C, 80
C and 85
C.
Highlight this and hit <Enter> to see monitor data for the following items:
CPU Temperature
PECI Agent
System Temperature
Fan1-Fan6 Speeds: If the feature of Auto Fan Control is enabled, the BIOS will
automatically display the status of the fans indicated in this item.
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).
Voltage Monitoring
The following items will be monitored and displayed:
Vcore A
Vcc 1.5V
-12V
Vcc 1.8V
+3.3V
+12V
5Vsb
5VDD
Vfsb
Vbat
7-17
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