Date: Wed, 28 Jan 2009 14:45:55 +0000 From: Mike Clarke <jmc-freebsd2@milibyte.co.uk> To: freebsd-questions@freebsd.org, Chris Whitehouse <cwhiteh@onetel.com> Cc: Tore Lund <tl32@next.online.no> Subject: Re: coretemp for AMD? Message-ID: <200901281445.56246.jmc-freebsd2@milibyte.co.uk> In-Reply-To: <497CFB80.70800@next.online.no> References: <1232911389.00066065.1232901002@10.7.7.3> <1232918584.00066087.1232907002@10.7.7.3> <497CFB80.70800@next.online.no>
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On Sunday 25 January 2009, Tore Lund wrote: > Mike Clarke wrote: > > But I get sensible looking results for my Athlon 64 X2 4850e with > > the following command: > > > > sysctl hw.acpi.thermal.tz0.temperature > > For some reason it works on your 4850e. But for some of us this > command does not work. It never reports anything but 40 C on my > Athlon 64 X2 6000+. sysutils/k8temp, however, reports 20 C /28 C. And on Sunday 25 January 2009, Chris Whitehouse wrote: > It works for me, I ran it and sysctl hw.acpi.thermal.tz0.temperature > every 2 seconds in a while loop and cpu temperatures follow cpu > activity closely and change in 1deg steps between about 25deg and > 42deg. When I rebooted and checked temperature in the BIOS it was > pretty much the same as what k8temp was saying just previously. > hw.acpi.thermal.tz0.temperature is fixed on 40deg even with high cpu > activity. > > Maybe your processor is not supported? Very odd. The processor is an Athlon 64 X2 4850e. Being one of the newer energy efficient 45 watt models I suppose there might be a difference in the temperature sensor. It might also be an issue with the motherboard (Foxconn FC-6150M2MA-KRS2H). After I got the motherboard I needed to upgrade the BIOS in an attempt to fix an unrelated problem. Prior to the update even the BIOS reported silly high temperatures and I remember FreeBSD reporting a constant 40C but I don't remember whether this was from sysctl, k8temp or mbmon. I don't overclock the system so after satisfying myself that it doesn't have any tendency to overheat I no longer have much need to monitor the CPU temperature so I think the way my system reports temperatures will just remain as one of life's little mysteries. -- Mike Clarke
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