DSL modems - leaving them on all the time
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Posted by on July 22, 2006, 9:47 pm
Please log in for more thread options Most people leave their DSL/cable modems on all the time. I've noticed that mine gets really hot. I sometimes turn it off during the night. The hotness doesn't matter, does it? The only problem I've heard of (with turning it off) is that some guy turned his off for 3 weeks and when he came back it wasn't working right, but he fixed it with one phone call. | ||||||||||||||||||||||||||||||||||
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Posted by David H. Lipman on July 23, 2006, 9:05 am
Please log in for more thread options | Most people leave their DSL/cable modems on all the time. I've noticed | that mine gets really hot. I sometimes turn it off during the night. | The hotness doesn't matter, does it? | | The only problem I've heard of (with turning it off) is that some guy | turned his off for 3 weeks and when he came back it wasn't working | right, but he fixed it with one phone call. No electronics like heat. It will shorten its life. Make sure it is well ventilated. BTW: My Westell Modem and Linksys BEFSR81 are left on 24x7x365. -- Dave http://www.claymania.com/removal-trojan-adware.html http://www.ik-cs.com/got-a-virus.htm | ||||||||||||||||||||||||||||||||||
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Posted by on July 23, 2006, 4:54 pm
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David H. Lipman wrote: any table, it wouldn't be ventilated at all. So I put it on some foam blocks so that it's ventilated. What parts of a modem/TV/stereo make it hot? | ||||||||||||||||||||||||||||||||||
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Posted by David H. Lipman on July 23, 2006, 5:44 pm
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| My Zoom DSL modem has tiny "feet" on the bottom - if you just put it on | any table, it wouldn't be ventilated at all. So I put it on some foam | blocks so that it's ventilated. | | What parts of a modem/TV/stereo make it hot? It will depend upon the circuitry and how its built. For example does it have an AC/DC converter inside or outside the device. -- Dave http://www.claymania.com/removal-trojan-adware.html http://www.ik-cs.com/got-a-virus.htm | ||||||||||||||||||||||||||||||||||
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Posted by DLR on July 30, 2006, 5:07 am
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>
Any time you convert or amplify signals, you need power and not all of
> What parts of a modem/TV/stereo make it hot? > it goes "to the good". Much of it turns to heat. But if you compare most anything that decodes a signal today with 10 or more years ago, the power wasted is much reduced. Digital Signal Processing (DSP) chips are almost free compared to the cost of the devices they are in and this allow you to perform complex math on signals to reject the noise and better extract the desired signal in real time. Thus you have a lot less amplifying and filtering than in the past. Now you boost the signal to where the DSP can massage it and clean it up. This is the single biggest thing that's allowed digital cell phone to get so tiny. And why so much of your stereo size is now based on a box to hold all the jacks and knobs vs in the past when the size was usually dictated by the size of the stuff in the box. As to your original question, amplification is where most of the heat comes from. In a stereo, 100 watts of speakers (which likely is 40 or so of RMS real power), well touch an 80 watt light bulb. They get hot. And this is a way over simplified explanation. | ||||||||||||||||||||||||||||||||||
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> | Most people leave their DSL/cable modems on all the time. I've noticed
> | that mine gets really hot. I sometimes turn it off during the night.
> | The hotness doesn't matter, does it?
> |
> | The only problem I've heard of (with turning it off) is that some guy
> | turned his off for 3 weeks and when he came back it wasn't working
> | right, but he fixed it with one phone call.
>
> No electronics like heat. It will shorten its life.
>
> Make sure it is well ventilated.
>