Re: smart fans
It took an even closer look at the motherboard and discovered
_all_ connectors are 4-pin. Inside the computer, 3/5 fans are
4-pin and the two on the CPU cooling tower (which are 4-pin,
so it checks out) even have "PWM" in their sticker text.
If the BIOS/UEFI setting is already PWM, and the connectors
are 4-pin, and some of the fans are, what's missing?
And this makes it is even more difficult to understand why
pwmconfig(8) asks for 3-pin fans. Because I have them -
as well!
fan front low be quiet! Shadow Wings 2 140 mm, 3-pin [1]
front high be quiet! Shadow Wings 2 140 mm, 4-pin
CPU cooling tower be quiet! Pure Wings 2 120 mm, 4-pin (2) [2]
rear Corsair 120 mm, 3-pin
projector extra fractal Silent Series R3 140 mm, 3-pin [3]
(motherboard fan connectors are:
CPU_FAN, CPU_OPT, SHA_FAN1, SHA_FAN2, SHA_FAN3 - all 4-pin)
[1] https://www.bequiet.com/en/casefans/shadow-wings-2/1620
"available with or without PWM control"
[2] https://www.bequiet.com/en/casefans/449
"Fan speed @ 100% PWM / 12V: 1500 RPM"
[3] https://www.fractal-design.com/products/fans/silent/silent-series-r3-140mm/black/
(Doesn't mention PWM.)
https://dataswamp.org/~incal/ebchw/COMPUTER
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underground experts united
https://dataswamp.org/~incal
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