F81866A
Fan3 duty update rate:
00: 2Hz
5-4
3-2
1-0
FAN3_DN_RATE
FAN2_DN_RATE
FAN1_DN_RATE
R/W 5VSB
R/W 5VSB
R/W 5VSB
01
01
01
01: 5Hz (default)
10: 10Hz
11: 20Hz
Fan2 duty update rate:
00: 2Hz
01: 5Hz (default)
10: 10Hz
11: 20Hz
Fan1 duty update rate:
00: 2Hz
01: 5Hz (default)
10: 10Hz
11: 20Hz
FAN1 and FAN2 START UP DUTY-CYCLE/VOLTAGE ⎯ Index 9Ch
Bit
Name
R/W Reset Default
Description
When fan start, the FAN_CTRL2 will increase duty-cycle from 0 to this
(value x 8) directly. And if fan speed is down, the FAN_CTRL 2 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this
(value x 4).
FAN2_STOP
_DUTY
7-4
R/W
5h
5h
5VSB
When fan start, the FAN_CTRL 1 will increase duty-cycle from 0 to this
(value x 8 directly. And if fan speed is down, the FAN_CTRL 1 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this
(value x 4).
FAN1_STOP
_DUTY
3-0
R/W 5VSB
FAN3 START UP DUTY-CYCLE/VOLTAGE ⎯ Index 9Dh
Bit
Name
R/W Reset Default
Description
7-4
Reserved
-
-
Reserved.
-
When fan start, the FAN_CTRL 3 will increase duty-cycle from 0 to this
(value x 8 directly. And if fan speed is down, the FAN_CTRL 3 will
decrease duty-cycle to 0 when the PWM duty cycle is less than this
(value x 4).
FAN3_STOP_
DUTY
3-0
R/W 5VSB
5h
72
Jan, 2012
V0. 12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
