I know for certain that laptops have other intakes besides those which may be covered by closing the lid.
I frequently leave mine running over-night with it's lid closed, and it's windows settings adjusted so it will not turn off when I close the lid. this allows me to have long backups, anti-viral scans, windows updates, and long downloads, all to be scheduled for over-night. In the morning I find no evidence of any change in temperature, and all my tasks completed. since all laptops are made to work with an external monitor and keyboard (many are made to be dropped into a docking station which allows for just this kind of operation), I would say there's no worry for operating it with the lid closed for extended periods of time. jmo, Chip -----Original Message----- From: Tyler Juranek [mailto:[email protected]] Sent: Friday, January 07, 2011 7:48 AM To: [email protected]; [email protected]; [email protected]; [email protected]; [email protected] Subject: Re: windows 7 help Hi. What is a sign of an overheated system? Tyler ----- Original Message ----- From: David <[email protected]> To: "Darren Harris" <[email protected]>, "'Sandra Fouts'" <[email protected]>, "'Rhonda Partain'" <[email protected]>, <[email protected]> Date: Thursday, Jan 6, 2011 14:21:36 Subject: Re: windows 7 help > > > Shutting off your display completely, would not be adviseable. Just > think what would happen, if your computer hangs, and you need sighted > helpif your screen reader stops working, and you need sighted > assistance. The screen shut off, will leave your sighted assistant just as helplessly lost as you. > And, since you don't know if your computer has locked itself, it would > not even help to have remembered the key sequence for going to the > controlpanel or the like to turn the screen on again. > > Some years ago, one person adviced the following, which I never have > had the chance of testing myself, so it will have to stand on its own. > If anyone have the chance of testing it, and come back with the > results, it would be greatly appreciated. What was suggested, was to > get hold of an external monitor plug. No cable, no monitor, simply > just the plugg itself. It might be obtained from your local dealers > scrape yard, or the like; and would be of very low cost. The person > that suggested it to me, claimed that the laptop would recognize that > a plugg had been inserted, thinking this would mean an external > monitor was operative, and simply switch off the internal laptop > screen. Hmm, well, only remember that most laptops have a setting, > that will tell whether the internal screen has to be turned off, when > an external screen is connected; or to leave the computer in a dual-monitor mode, on which this workaround would have no effect at all. > > Another user suggested for you to keep the lid of your laptop closed. > I do find it in its place here, to put out a tiny warning. This due to > a couple of reasons. First, my old laptop actually had its fan intake > located right above the keyboard. This would mean, closing the lid, > would block for the fan intake, hence causing little or no cooling of > your computer. And, even when this fan location is not the case, > modern laptops tend to develop quite an amount of heat. They have been > engineered the way, that the big surface of the keyboard area, that > will be exposed when the lid is open, serves as a cooling area. In > other words, the 'close the lid' idea, has to be on your own risk of > overheating your system. Specially so, if you are running any software > or process, that uses excessive resources. If you try it out, and find > your fan to speed up, or your computer to be unusually heated, I'd > suggest for you immediately to find another way of saving battery > life. Not only can overheating your system cause fatal errors on the > system itself, but it also will shorten your battery's lifetime. First > your battery might have a shorter usage-time this very charge, but > repeatedly overheating your system or battery, will cause chemical reactions in your battery cells, that will shorten it's overall lifetime. > > Some laptops have their sensoring switch for the lid accesible. You > will feel it as a tiny PIN-like thing, coming up through the top of > your laptop's keyboard area. Usually its located near the one side. If > your computer has this construction, placing a small piece of tape > over this switch, will cause it to be pressed down. The computer now > will think the lid has been shut, and hence turn off the screen. > > ----- Original Message ----- > From: "Darren Harris" <[email protected]> > To: "'David'" <[email protected]>; "'Sandra Fouts'" > <[email protected]>; "'Rhonda Partain'" > <[email protected]>; <[email protected]> > Sent: Thursday, January 06, 2011 7:12 PM > Subject: windows 7 help > > > > Hi all, > > > > Is there a way I can turn off completely the display on my laptop? I > > would like to conserve power where ever I can and the display does > > take up a lot I am guessing. > > > > Many thanks. > > > > If you reply to this message it will be delivered to the original > > sender only. If your reply would benefit others on the list and your > > message is related to GW Micro, then please consider sending your > > message to [email protected] so the entire list will receive it. > > > > GW-Info messages are archived at http://www.gwmicro.com/gwinfo. You > > can manage your list subscription at http://www.gwmicro.com/listserv. > > > If you reply to this message it will be delivered to the original sender only. If your reply would benefit others on the list and your message is related to GW Micro, then please consider sending your message to [email protected] so the entire list will receive it. > > GW-Info messages are archived at http://www.gwmicro.com/gwinfo. You can manage your list subscription at http://www.gwmicro.com/listserv. 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