Shuttle FS51 User Manual page 73

User Set CPU Fan User Set CPU Fan User Set CPU Fan User Set CPU Fan User Set CPU Fan
Enabled you to choose one specific fan for further setting.
The choice: Fan 1, Fan 2 or Fan 3.
Fan Speed Up When CPU Temp Fan Speed Up When CPU Temp Fan Speed Up When CPU Temp
Fan Speed Up When CPU Temp Fan Speed Up When CPU Temp
Enabled 3 phase smart control to the Selected fan. This feature ranges
from 48 0 C to 80
temperature is at 72
The choice: 48
Take our default Setting for example, 1st and 2nd phase Variable Fan
Speed and CPU temperature Control is as defined by "Fan Speed Up
When CPU Temp". If actual CPU temp (reported by BIOS) stays below
72 0 C then CPU fan speed will run at a quiet mode
approximately 2000 RPM.
But when the actual CPU temp goes above the pre-selected 72
temperature threshold, then CPU fan speed will automatically engage
normal mode normal mode
into normal mode normal mode normal mode (2nd phase) of about 3000 RPM. Automatically by
the Smart Bios feature, this increase of fan rotation speed will
effectively cool down the CPU temperature. And when the CPU
temperature drops back below the 72
fan speed will again automatically shift back to the quiet mode (1st
phase) of about 2000 RPM in order to reduce fan noise level.
Fail-safe mode Fail-safe mode (3rd phase) Variable Fan Speed and CPU Fail-safe mode Fail-safe mode Fail-safe mode
temperature Control is as predefined at 80
system and CPU operating under extreme working conditions, and if
CPU temperature is raised above 80
the CPU fan in Fail-safe mode to rotate at about 3500 RPM. Please note
that the higher fan speed, the fan cooler will be
become slightly noisier in order to compensate for the increase in CPU
temperature.
Warning: Warning: It is strongly recommended to disable CPU Fan Warning:
Warning: Warning:
AutoGuardian feature, if you wish to use other fan cooler, allowing the
fan to run at its default speed.
0 C, in an increment of 4
0
C.
0 C, 52 0 C, 56 0 C, 60
0
80 C.
- 71 -
0 C. The default
0 C, 64 0 C, 68 0 C, 72
quiet mode (1st phase) of quiet mode quiet mode
quiet mode
0
C temperature threshold, CPU
0 C. Where in the event of
0 C then the Smart Bios will engage
0 C, 76 0 C,
0 C