w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 38

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

Figure 6.6 PWM fan mode and Figure 6.7 DC fan mode illustrate the Thermal Cruise mode
6.5.2
CPUFANIN0
CPUFANOUT1. At this mode, W83627EHF/EHG provides the Smart Fan system which can control
the fan speed automatically depend on current fan speed to keep it with in a specific range. A wanted
fan speed count and interval must be set (ex. 160 r 10 ) by BIOS. As long as the fan speed count is
y
There are 4 pairs of Fan input/Fan output control at this mode: SYSFANIN with SYSFANOUT,
Fan Speed Cruise mode
One more protection is provided that Fan output will not be decreased to 0 in the above (3)
situation in order to keep the fans running with a minimum speed. By setting Bank0
Index12h.bit3~5 to 1, Fan output will be decreased to the “Stop Output Value” which are
defined at Bank0 Index08h, Index09h and Index17h.
with
CPUFANOUT0,
AUXFANIN
W83627EHF/EF, W83627EHG/EG
Figure 6.7
Figure 6.6
-32-
with
AUXFANOUT
and
CPUFANIN1
with