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BIOS Setup
CPU Fan Protection
The CPU Fan Protection function, when enabled, has the capability of
monitoring the CPU fan during system boot-up and will automatically
power-off the system once it has detected that the CPU fan did not
rotate. Set this field to Disabled if you are not using this function. Refer
to “CPU Fan Connector with CPU Fan Protection Function” in chapter
2 for more information.
CPU Temp. Prot. Function and CPU Temp. Prot. Alarm
The CPU Temperature Protection function has the capability of
monitoring the CPU’s temperature during system boot-up. To use this
function, set the “CPU Temp. Prot. Function” field to “Enabled” then select
the desired CPU temperature limit in the “CPU Temp. Prot. Alarm” field.
Once the system has detected that the CPU’s temperature exceeded
the limit, 5 warning beeps will sound and at the same time, a warning
message will appear on the boot-up screen instructing you to press
<Del> in order to enter the main menu of the BIOS. If you did not
press <Del>, the system will automatically power-off after the 5
warning beeps. You may either:
1. Press <Del> then enter a new CPU temperature limit;
or
2. Allow the system to power-off after the 5 warning beeps then
check whether the heatsink and fan are mounted properly onto the
CPU because high CPU temperature may be due to incorrect fan/
heatsink installation. Now restart the system. If the same problem
persist, it may be that the CPU fan is damaged or it is not rotating
properly. Tr y replacing it with a new fan. If it is due to other
contributing factors that resulted to high CPU temperature, you
may need to set a lower CPU temperature limit.
CPU Temperature References
When you power-up a system, the BIOS message appears on
the screen and the memory count begins. After the memory test,
the CPU temperature range is normally between 32
o
C and
35
o
C. When you run an operating system then tried to reboot
the system, the CPU temperature range at this time is between
40
o
C and 45
o
C. These temperature references serve as a guide
when you select the CPU temperature limit.
