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OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below. |
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The ability to control fan speed is not currently supported outside of using the CPU scaling features, this is because it is very chipset specific and even possibly dangerous.
There may be a generic way to do it via ACPI on some systems, but as if now fan control is not supported by OpenBSD. Constantine A. Murenin (cnst@) had sent in a patch for lm(4) along with a proposal for a generic sysctl-based interface earlier this year.. but it went mostly unnoticed and it was never committed, consider sending a reply to that email, or perhaps one to him directly. http://marc.info/?l=openbsd-tech&m=124182023631365&w=2 I remember there being a paper from him about it, but I can't recall where it is.. perhaps on the papers page. Sorry, hope that helps.. Don't worry about spelling, I had no problems reading it. |
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Thank you BSDfan666
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Last edited by Angevin; 20th November 2009 at 03:28 AM. Reason: fix quotation |
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Hello,
I do not know if this helps but... In FreeBSD I can set exactly my fan speed. (I can even turn it off!) I have an IBM Thinkpad Z60t, t23 and R60 and this works in all of them. Just load the acpi_ibm kernel module and then using sysctl I can set the fan speed. Best regards, |
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If you want a hardware solution, I would suggest a couple of Zalman "FanMate"(s).
this way you could "dial" in the optimum speed.. noise /cooling.. On my OpenBSD email server I have 2 "cheap" 80mm fans (case was free) and I have these controlled via FanMates... IIRC, the cost was something like 3-4 USD.. rk
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Thanks...
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Thank you, --Kevin Last edited by Angevin; 20th November 2009 at 03:37 AM. Reason: fix stuff |
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