Date: Mon, 28 Jul 2014 22:35:59 +0700 From: Alexey Dokuchaev <danfe@nsu.ru> To: powerpc@freebsd.org Subject: Manual fan control on iBook G4? Message-ID: <20140728153559.GA41604@regency.nsu.ru>
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Hi there, I've digged out that old pity iBook G4 of mine (should be something like PowerBook6,5 I guess) that had been hanging under Tiger within few minutes after boot and installed FreeBSD on it. Surprisingly, it works fine under it. :) I'm suspecting either a faulty harddrive, or non-working fan. So far no matter what heavy port I build, fan does not kick it. Does FreeBSD support fan control on this baby? How can I manually engage it to see if it works? (I've tested that power line has +5V, but don't know how can I PWM control it from command line. Is it PWM, in fact? -- just guessing since there are four wires coming into it.) Another weird thing: CPU frequency per dmesg(8) is strangely low: $ grep cpu0 /var/run/dmesg.boot cpu0: Motorola PowerPC 7447A revision 1.1, 535.22 MHz cpu0: Features 9c000000<PPC32,ALTIVEC,FPU,MMU> while per various websites, 7447A CPU on it should clock at at least 1GHz. Any clues? How can I read Mac model from NVRAM (akin to what Mac OS X provides via `hw.model' sysctl, or something like that)? Thanks. ./danfe
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