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| W83627DHG Datasheet, PDF (55/268 Pages) Winbond – WINBOND LPC I/O | |||
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W83627DHG
7.6.3.2. Fan Speed CruiseTM Mode
Four pairs of fan input sensors and fan outputs in Fan Speed CruiseTM mode.
⢠SYSFANIN and SYSFANOUT
⢠CPUFANIN0 and the temperature sensor selected by Bank0 Index 49h, bits 2 ~ 0
⢠AUXFANOUT and the temperature sensor selected by Bank0 Index 49h, bits 6 ~ 4
⢠CPUFANOUT1 and the temperature sensor selected by Bank0 Index 4Ah, bits 7 ~ 5
Fan Speed CruiseTM mode keeps the fan speed in a specified range. First, this range is defined in BIOS
by a fan speed count (the amount of time between clock input signals, not the number of clock input
signals in a period of time) and an interval (e.g., 160 ± 10). As long as the fan speed count is in the
specified range, fan output remains the same. If the fan speed count is higher than the high end (e.g.,
170), fan output increases to make the count lower. If the fan speed count is lower than the low end
(e.g., 150), fan output decreases to make the count higher. One example is illustrated in this figure.
Publication Release Date: Aug, 22, 2007
-43-
Version 1.4
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