Date: Mon, 01 Apr 2013 11:43:00 -0500 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Julio Merino <julio@meroh.net> Cc: freebsd-ppc@freebsd.org Subject: Re: Machine shutting down due to temperature issue Message-ID: <5159B914.1090209@freebsd.org> In-Reply-To: <CADyfeQWDdx9AjZrtcYu0b_ng1QeQpYOFDa0jkGNoZvn1WB=OLw@mail.gmail.com> References: <CADyfeQWDdx9AjZrtcYu0b_ng1QeQpYOFDa0jkGNoZvn1WB=OLw@mail.gmail.com>
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On 03/31/13 14:35, Julio Merino wrote: > Hello, > > I have a PowerMac G5 (dual PPC 970FX 2Ghz, 6GB of RAM) and recently > installed FreeBSD powerpc64 9.1-RELEASE on it. Everything is working pretty > nicely but I keep running into the following issue (which unfortunately > makes the machine not very usable because I cannot build some software I > want): > > Whenever I try to build pcre, the machine shuts down with this message: > > WARNING: Current temperature (U3 HEATSINK: 82.5 C) exceeds critical > temperature (80.0 C)! Shutting down! > > The few information I've been able to find online about the U3 heatsink is > that it is related to the memory... and the fact that the machine powers > down reliably during the build of a particularly memory-intensive source > file in pcre seems to explain this. > > Another data point that may be related is that powerd is enabled in rc.conf > but it fails to start with: > > powerd: lookup freq: No such file or directory > > Any ideas about what's up with this temperature issue? Is power management > not implemented for the G5, does it have a problem or is the machine faulty? > > I had Linux running on this machine for a while and I didn't experience any > such issues. Granted, I didn't build pcre, but I used it as a desktop with > other memory-hungry applications and it behaved nicely. > > Thanks! > I'd guess a faulty fan on the U3 (which is the northbridge), but it's possible there is something else at work. Could you forward the output of sysctl dev.fcu? -Nathan
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