Date: Mon, 6 Oct 2008 09:39:40 -0500 From: Kirk Strauser <kirk@strauser.com> To: FreeBSD Questions ML <freebsd-questions@freebsd.org> Subject: Coretemp seems to be off quite a bit Message-ID: <F39A6D89-C720-401D-8399-AA0BB644736B@strauser.com>
next in thread | raw e-mail | index | archive | help
I have a Gigabyte motherboard with an Intel ICH-9 chipset, and a 3.0GHz Core 2 Duo (E8400). The coretemp sysctls seem to always show 50C as the baseline temperature: $ sysctl dev.cpu | grep temp dev.cpu.0.temperature: 50 dev.cpu.1.temperature: 50 This is with a big PSU fan, a good CPU fan, a clean heatsink, and two case fans aimed the right direction (front fan pulling cool air in, rear fan pushing warm air out). If I reboot and go into the BIOS, I get numbers around 42-43C. I know it's kind of hard to compare directly, but the coretemp numbers are from a totally idle system with powerd scaling it back to 373MHz, so it should be as cool as when sitting idle in the BIOS screens. When I work the system hard, like running "make -j4 buildworld", I see temperatures up around 63-64C, and I'm almost positive that's not right. Any ideas why coretemp and the BIOS would show such different numbers? -- Kirk Strauser
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?F39A6D89-C720-401D-8399-AA0BB644736B>