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IRQ
Serial Port 2
Address
IRQ
4.3.17.4 Internal FAN Settings submenu
Menu Item
FAN_PWMOUT device type
Internal FAN Control
AC0 Temperature (°C)
AC1 Temperature (°C)
Temperature Hysteresis
FAN Duty Cycle (%) Above AC1
FAN PWM Frequency
FAN Duty Cycle
SBC-C90
SBC-C90 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
0x2A8, 0x2A0, 0x288,
0x280
3 / 4 / 5 / 6 / 7 / 10 / 11
Select the IRQ line to assign to Serial Port #1, if enabled.
/ 14 / 15
Enabled/Disabled
Enables or Disables Serial Port # 2
0X3F8, 0x3E8, 0x2F8,
0x2F0, 0x2E8, 0x2E0,
Select the Base address for Serial Port #2, if enabled.
0x2A8, 0x2A0, 0x288,
0x280
3 / 4 / 5 / 6 / 7 / 10 / 11
Select the IRQ line to assign to Serial Port #2, if enabled.
/ 14 / 15
Options
Description
3-WIRE FAN
Specifies if FAN_PWMOUT is connected to a 3-wire or 4-wire FAN or to a generic PWM
4-WIRE FAN
Generic PWM
Enabled / Disabled
Disable or Enable Thermal Feedback FAN Control
Only available when "Internal FAN Control" is Enabled
70 / 75 / 80 / 85 / 90 /
95 / 100
Select the highest temperature above which the onboard fan must work always at Full Speed
5 / 10 / 15 / 20 /25 / 30
Only available when "Internal FAN Control" is Enabled.
/ 35 / 40 / 45 / 50 / 55 /
60 / 65 / 70 / 75 / 80 /
Select the lowest temperature under which the onboard fan must be OFF.
85 / 90 / 95 / 100
Only available when "Internal FAN Control" is Enabled.
Value added (when temperature is growing) to the ACx thresholds or subtracted from them (when
0 .. 10
temperature is decreasing) to avoid oscillations.
Only available when "Internal FAN Control" is Enabled.
0 .. 100
Use this item to set the Duty Cycle for the fan when the CPU temperature is between AC1 and AC0 threshold.
Above AC0, the man will run at full speed.
Sets the frequency of the FAN_PWMOUT signal. Typical values are 100 for a 3-wire device and 20000 for a
4-wire one. Allowed range is 1-60000.
0 .. 100
Only available when "Internal FAN Control" is Disabled.
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