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| W83627DHG Datasheet, PDF (58/268 Pages) Winbond – WINBOND LPC I/O | |||
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W83627DHG
7.6.3.3. SMART FANTM III
SMART FANTM III controls the fan speed so that the temperature meets the target temperature set in
BIOS or application software. There are only two pairs of fan outputs and temperature sensors in
SMART FANTM III mode.
⢠CPUFANOUT0 and the temperature sensor selected by Bank0 Index 49h, bits 2 ~ 0
⢠CPUFANOUT1 and the temperature sensor selected by Bank0 Index 4Ah, bits 7 ~ 5
CPUTIN
PECI_Agent1
PECI_Agent2
PECI_Agent3
PECI_Agent4
SYSTIN
AUXTIN
CPUTIN
PECI_Agent1
PECI_Agent2
PECI_Agent3
PECI_Agent4
Pin 115
CPUFANOUT0
Pin 120
CPUFANOUT1
The algorithm is as follows:
(1) The target temperature, temperature tolerance, maximum and minimum fan outputs and step are
set.
(2) The following figure shows the initial conditions. If the current temperature is within (Target
Temperature ± Temperature Tolerance), the fan speed remains constant.
Publication Release Date: Aug, 22, 2007
-46-
Version 1.4
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