>> Sorry for the double-post, but I meant to re-iterate just >> for completeness' sake: the idle/loaded temps reported by >> lm-sensors+coretemp under Linux are ~73C/93C, in contrast >> to the lower temperatures reported by the 3 Windows apps >> mentioned above. > > Thinking in relative terms, your system is running under Windows at -31 > idle and -10 under heavy load; Linux at -27 idle and -7 under heavy > load. So the bottom line is that your system runs hotter in Linux than > Windows. You should check if you have services running that suck your > CPU, or, if you self-built your kernel, if you missed some CPU-related > options such as CONFIG_CPU_IDLE, ACPI, etc. And also make sure you have > the acpi_cpufreq and cpufreq_conservative drivers loaded and used. The > "powertop" utility might come in handy to track such issues. > > The 20°C difference between idle and heavy load seems reasonable, my own > mobile Core Duo CPU has an even larger difference (37°C!). The 7°C > margin is more problematic, but that being said, I just checked mine > and it's running only 12°C below the limit under heavy load... That's > not so different from yours. So maybe these CPUs really run hot and so > be it. That makes sense. And yeah, I do generally have tons of stuff running under Linux, so the system doesn't spend much time being entirely idle. Well I've just upgraded my PC's case to this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16811233049 It's nothing super fancy, but it does have one of those side-vents with a duct going straight to the CPU, and it also has a 120mm rear exhaust fan (plus a spot in the front for an intake fan). My old case was a nice, solid In-Win case, but it was about 10 years old, and had no case fans at all -- not even spots for them -- and the CPU's fan was almost right against the side of the PSU. So cooling in there was pretty suboptimal. This new case is a huge improvement: my CPU is idling around 63-65C now, compared to 73-75C in the old case. Under load it goes as high as the mid-80s, not into the 90s as in the old case. I'd like it to be even cooler, and will probably get a front intake fan next, but I'm really happy with this upgrade, especially because it's solved my main complaint: the fan noise. It's super quiet now because the CPU fan and rear case fan are spinning pretty slowly, and only rarely speed up -- as opposed to the CPU fan being obnoxious nearly 24/7 in the old case. -- Anthony DiSante http://nodivisions.com/ _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
