w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 39

• Manufacturer Part Number: w83627ehf
• Description: W83627ehf/ef W83627ehg/eg Winbond Lpc I/o
• Manufacturer: Winbond Electronics Corp America

the specific range, Fan output will keep the current value. If current fan speed count is higher than the
high limit (ex. 160+10), Fan output will be increased to keep the count less than the high limit.
Otherwise, if current fan speed is less than the low limit(ex. 160-10), Fan output will be decreased to
keep the count higher than the low limit. See Figure 6.8 example.
6.5.3
Smart Fan control system can be disabled and the fan speed control algorithm can be programmed by
BIOS or application software. The programming method must be set fan configuration at bank 0 index
04h,bit5-4 to 1,index 62h bit5~4 to 1. Then table 6.3-1 displayed current temperature and fan output
value at Smart Fan I Mode Besides, these tables 6.3-2 and 6.3-3 used to setting thermal mode or
speed cruise mode of Smart Fan I mode
Table 6.3-1 Display Register- at Smart Fan I Mode
Current CPU
Temperature
Current SYS
Temperature
Current AUX
Temperature
Current
CPUFANOUT0
Output Value
Current
SYSFANOUT
Output Value
DESCRIPTION
Manual Control Mode
Count
Fan
output
170
160
150
Bank1
50H ,51H
Bank 0
27H
Bank2
50H,51H
Bank0
03H
Bank0
01H
REGISTER
ADDRESS
(%)
100
50
0
A
CPUTIN Temperature
Sensor
SYSTIN Temperature
Sensor
AUXTIN Temperature
Sensor
CPUFANOUT0 Output
Value Select
SYSFANOUT Output
Value Select
REGISTER NAME
W83627EHF/EF, W83627EHG/EG
Figure 6.8
-33-
C
Publication Release Date: January 18, 2006
Read only
Read only
Read only
FFh
FFh
ATTRIBUTE
8 MSB, 1°C bit 7,
0.5 °C
8 MSB, 1°C
8 MSB, 1°C bit 7,
0.5 °C
Bit7-0
CPUFANOUT Value
Bit7-0 SYSFANOUT
Value
BIT DATA
Revision 1.0