Date: Mon, 23 Jun 2008 13:52:07 -0700 From: George Hartzell <hartzell@alerce.com> To: josh.carroll@gmail.com Cc: hartzell@alerce.com, freebsd-questions@freebsd.org Subject: Re: CPU temp's on core 2 duo, should they be significantly different? Message-ID: <18528.3319.352684.890447@almost.alerce.com> In-Reply-To: <8cb6106e0806231218jcbdffa8jec894b7fb31290c4@mail.gmail.com> References: <18527.62508.451095.415706@almost.alerce.com> <8cb6106e0806231218jcbdffa8jec894b7fb31290c4@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Josh Carroll writes: > [...] > I'd recommend taking the heat sink off and seeing how the thermal > grease is spread on the CPU's head spreader and on the heatsink > itself. If it looks lopsided or extremely thick on one side of the CPU > package or extremely thin (to the point where you can still see the > sheen of the heatsink or heat spreader), then re-mount the heatsink > and try to make sure it's evenly distributing the pressure down on the > CPU package. This is a Shuttle XPC box. I pulled the heatsink/cooler assembly and there didn't seem to be any obvious asymmetries in how the the grease was distributed. I swirled it around a bit, reassembled, and am seeing the same kind of spreads. Here's the machine pretty much idle dev.cpu.0.temperature: 44 dev.cpu.1.temperature: 28 Where top says: last pid: 1217; load averages: 0.02, 0.51, 0.43 up 0+00:14:57 13:49:47 52 processes: 1 running, 51 sleeping CPU: 0.0% user, 0.0% nice, 0.0% system, 0.2% interrupt, 99.8% idle Mem: 22M Active, 13M Inact, 95M Wired, 1788K Cache, 15M Buf, 3797M Free Swap: 4063M Total, 4063M Free A could of dd if=/dev/urandom etc... quickly pushes it up, but the delta remains: dev.cpu.0.temperature: 51 dev.cpu.1.temperature: 39 Top says: last pid: 1243; load averages: 0.98, 0.65, 0.48 up 0+00:16:07 13:50:57 54 processes: 3 running, 51 sleeping CPU: 0.4% user, 0.0% nice, 92.5% system, 0.0% interrupt, 7.1% idle Mem: 22M Active, 13M Inact, 95M Wired, 1788K Cache, 15M Buf, 3797M Free Swap: 4063M Total, 4063M Free g.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?18528.3319.352684.890447>