> Is it possible to control the speed at which the fans are running on OpenBSD? > > I know that my motherboard has the chip that allows for such control > (the settings are available in BIOS, but the options in BIOS are too > limited, in fact it's just Enabled/Disabled, so not much choice). I > also know that programmes that allow such control exist in win32 > (<URL:http://www.almico.com/speedfan.php>), but I don't run win32 on > my servers. :-)
Some motherboards handle it without OS intervention. Honestly, I would be worried about a userspace application handling the fans. I have an Asus A8V Deluxe that does it without OS support, but it seems to have trouble with all but the newest OSes. Linux 2.4.x and OpenBSD 3.6 (both AMD64 and i386) hang during boot.
