Date: Tue, 1 May 2012 13:41:11 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: Alejandro Imass <ait@p2ee.org> Cc: freebsd-questions@freebsd.org Subject: Re: laptop very hot and noisy Message-ID: <20120501124110.GB5007@mech-cluster241.men.bris.ac.uk> In-Reply-To: <CAHieY7QW=3AJg4pO3reV76eC8URMQU0uoFQrv1BJdDskrX7gCw@mail.gmail.com> References: <20120501120654.GA4883@mech-cluster241.men.bris.ac.uk> <CAHieY7QW=3AJg4pO3reV76eC8URMQU0uoFQrv1BJdDskrX7gCw@mail.gmail.com>
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On Tue, May 01, 2012 at 08:25:11AM -0400, Alejandro Imass wrote: > On Tue, May 1, 2012 at 8:06 AM, Anton Shterenlikht <mexas@bristol.ac.uk> wrote: > > I run 10-current on Compaq 6715s. > > It's very hot and noisy. If I boot > > in verbose mode, I get lots of: > > > > acpi_tz0: _AC2: temperature 92.0 >= setpoint 50.0 > > acpi_tz0: _AC1: temperature 92.0 >= setpoint 60.0 > > acpi_tz0: _AC3: temperature 92.0 >= setpoint 40.0 > > acpi_tz0: _AC2: temperature 92.0 >= setpoint 50.0 > > acpi_tz0: _AC1: temperature 92.0 >= setpoint 60.0 > > > > at the console. > > > > I guess it's telling me that the CPU is too hot? > > > > Is that normal, e.g. under "make -j4 buildworld"? > > > > Probably not. I had a laptop with similar symptom when I was compiling > stuff. I took it apart, cleaned it and thought that maybe these log > messages were normal under stress. The CPU eventually fried and only > then I took a real close look and the heatsink had a very tiny little > hole where the fluid escaped, but it was not at all apparent at first > sight. These liquid (or gel?) filled heatsinks are basically useless > if the liquid escapes or evaporates so it will usually only show when > you are using the CPU a lot. I didn't even know they put fluid heatsinks in laptop. I thought this was something from IBM cutting edge power6 chips. So I might need to pull the laptop apart.. I'm just not sure I could put it back together... Thanks anyway -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423
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