On Friday 17 June 2016 10:21:26 Lisi Reisz wrote: > On Friday 17 June 2016 15:01:39 Gene Heskett wrote: > > On Friday 17 June 2016 08:22:02 Cindy-Sue Causey wrote: > > > On 6/17/16, Cindy-Sue Causey <butterflyby...@gmail.com> wrote: > > > > On 6/17/16, Dan Purgert <d...@djph.net> wrote: > > > >> Francesco Montanari wrote: > > > >>> I recently installed Jessie on a Lenovo ThinkPad T420. The fan > > > >>> usage looks > > > >>> reasonable. However, high temperatures (96 C) are reached when > > > >>> CPUs are running intensively for more than one minute or so. > > > >>> The fan speed at those > > > >>> temperatures is about 4500 rpm. > > > >>> > > > >>> Do you think it is ok, or do you suggest to force lower > > > >>> temperatures, e.g.,with thinkfan [1]? > > > >> > > > >> Absolutely. 95C is pushing the thermal thresholds of CPU dies > > > >> (IIRC, 100C is the burnout temp on most). Clean your heatsink > > > >> too. > > > > > > > > Consider this an emergency situation that needs immediately > > > > addressed. For example, if I personally didn't already have my > > > > brain circuits mentally locked up on fighting setting up home > > > > wifi, I'd be searching the Net for an external laptop fan, the > > > > USB kind that sits under the laptop (oh, and a replacement > > > > dialup modem). In the meantime, I currently have a desktop fan > > > > faced toward mine, and it's definitely helping. > > > > > > I literally hate when this happens. A thought occurred as fast as > > > that last email was sent. Low income types like myself don't > > > always have enough pennies to rub together to even buy a cheap fan > > > of any kind on demand. Doesn't mean we've completely run out of > > > alternatives. The dogs busted my first laptop fan's USB connection > > > couple years ago, but I still used the stand part of it > > > successfully as a coolant aid for another year or so (until they > > > broke that, too). > > > > > > ANYTHING that can *safely* get a laptop off the desktop surface > > > helps even if no extra fan is available in an emergency. Give air > > > every chance possible to circulate all around the machine. > > > > > > Mine's currently sitting on top of... knitting needles. They're > > > placed so that they are not near the hottest parts of the laptop > > > and so that they do not interfere with any other type of airflow, > > > either. Just another #Life Lesson Learned the Hard Way due to > > > losing couple machines over the years k/t the whole low income > > > thing, > > > yada-yada-grin... > > > > > > Cindy :) > > > > I would saw a couple of the old, small matching sized thread spools > > in two, cutting so you have a long half and a short half. Put the > > short ones under the front edge, and the long ones under the rear > > edge, possibly securing them beside its existing feet with some > > fabric glue I'd expect you have in the sewing kit. That would leave > > far more open space for the heat to be carried away than the > > knitting needles would. And that sort of glue would allow easy > > removal in the event you'd have to open it and they are hiding an > > assembly screw. > > Like it: :-)) > > But it requires equipment, like a hacksaw and vice to cut the spools > smoothly and matching-ly, or your laptop would wobble. Not all of us > have fully equipped workshops, Gene. ;-) > Ordinary saw, and level the wobble out with sandpaper. Spools these days are some sort of foam plastic moldings, might even be cuttable with a sharp knife. Its even possible the glue could wreck the spool by dissolving it, one of the reasons I said fabric glue, that may be a safer formula than anything full of aromatics. They are usually bad news for foamed plastic.
> But I love the idea! Really ingenious. Have you tried it?? > > Lisi No. My only lappy, an ancient HP DV-5120-us, doesn't run that hot. The fan kicks in for maybe 10 seconds at 30+ second intervals. I've used it for my "on the road" computer since about 2002. Email, and a bit of web browsing, and acting like a terminal occasionally is about it. OEM battery still runs it for a little while but its getting tired too. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>
