Comments on: Green PCs and Optimizing their Lifecycle http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Fri, 10 Feb 2012 13:53:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: lacoste polo shirts http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-98805 lacoste polo shirts Sun, 08 May 2011 16:33:00 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-98805 The power supply is generating a constant voltage, so the decrease in current actually means your system is drawing less power than if it was cooled down. At this point, the processor's logic fails and your programs will either lag or crash. The power supply is generating a constant voltage, so the decrease in
current actually means your system is drawing less power than if it was
cooled down. At this point, the processor’s logic fails and your
programs will either lag or crash.

]]> By: TV’s Go Digital, but Where Do Old TV’s Go? : CleanTechnica http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-701 TV’s Go Digital, but Where Do Old TV’s Go? : CleanTechnica Sat, 19 Jul 2008 22:51:03 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-701 [...] Green PC’s [...] [...] Green PC’s [...]

]]> By: Smart Power Strips the garlic of Vampire Electronics : CleanTechnica http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-700 Smart Power Strips the garlic of Vampire Electronics : CleanTechnica Sat, 03 May 2008 13:19:15 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-700 [...] to watt-counting surge protectors. You can even use a low cost, old-fashioned timer. For your energy efficient computer needs, you can download power-saving freeware. These applications extend beyond home use too; [...] [...] to watt-counting surge protectors. You can even use a low cost, old-fashioned timer. For your energy efficient computer needs, you can download power-saving freeware. These applications extend beyond home use too; [...]

]]> By: MichelleBennett http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-699 MichelleBennett Wed, 30 Apr 2008 16:07:56 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-699 Thanks, Dennis. This is why we need more engineers in the world - to reveal how complex seemingly simple things are and then explain them so the rest of us can understand. Thanks, Dennis. This is why we need more engineers in the world – to reveal how complex seemingly simple things are and then explain them so the rest of us can understand.

]]> By: MichelleBennett http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17166 MichelleBennett Wed, 30 Apr 2008 16:07:00 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17166 Thanks, Dennis. This is why we need more engineers in the world - to reveal how complex seemingly simple things are and then explain them so the rest of us can understand. Thanks, Dennis. This is why we need more engineers in the world – to reveal how complex seemingly simple things are and then explain them so the rest of us can understand.

]]> By: Dennis http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-698 Dennis Wed, 30 Apr 2008 01:12:20 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-698 First of all, as a consumer and engineer, I agree with the environmentally nasty components of all electronics, and that in general, more efficient power supplies and designs should be regulated. While it is important to keep air flowing through the enclosure of your computer, the building up of heat does not reduce the efficiency of your computer. As the conductors in your system heat up, their resistance increases. The power supply in any given computer will only output a constant voltage on several rails. Joule's law gives us Power = Voltage * Current, and Ohm's law gives us Voltage = Current * Resistance. The increasing resistance reduces the amount of current drawn from the circuit. The power supply is generating a constant voltage, so the decrease in current actually means your system is drawing less power than if it was cooled down. At this point, the processor's logic fails and your programs will either lag or crash. Excessively high temperature will damage components. Some people argue that the higher temperature is a sign of increased waste. This is not the case as the waste heat isn't being dissipated as quickly; the total amount of energy being thrown out as heat is the same in the event of reduced airflow, just more concentrated. Modern systems will detect this increase in temperature and increase the fan speed in an attempt to cool the system to acceptable levels, which does increase the amount of power drawn from the system as a whole. Your typical fan then only draws 1.5W at full speed, with a typical computer having 2 or more fans. It would be hard to call this increase in output power significant on a planetary scale, but keeping the vents clean would prevent the additional fan speed. First of all, as a consumer and engineer, I agree with the environmentally nasty components of all electronics, and that in general, more efficient power supplies and designs should be regulated.

While it is important to keep air flowing through the enclosure of your computer, the building up of heat does not reduce the efficiency of your computer. As the conductors in your system heat up, their resistance increases. The power supply in any given computer will only output a constant voltage on several rails.

Joule’s law gives us Power = Voltage * Current, and Ohm’s law gives us Voltage = Current * Resistance. The increasing resistance reduces the amount of current drawn from the circuit. The power supply is generating a constant voltage, so the decrease in current actually means your system is drawing less power than if it was cooled down. At this point, the processor’s logic fails and your programs will either lag or crash. Excessively high temperature will damage components.

Some people argue that the higher temperature is a sign of increased waste. This is not the case as the waste heat isn’t being dissipated as quickly; the total amount of energy being thrown out as heat is the same in the event of reduced airflow, just more concentrated.

Modern systems will detect this increase in temperature and increase the fan speed in an attempt to cool the system to acceptable levels, which does increase the amount of power drawn from the system as a whole. Your typical fan then only draws 1.5W at full speed, with a typical computer having 2 or more fans.

It would be hard to call this increase in output power significant on a planetary scale, but keeping the vents clean would prevent the additional fan speed.

]]> By: Dennis http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17165 Dennis Wed, 30 Apr 2008 01:12:00 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17165 First of all, as a consumer and engineer, I agree with the environmentally nasty components of all electronics, and that in general, more efficient power supplies and designs should be regulated. While it is important to keep air flowing through the enclosure of your computer, the building up of heat does not reduce the efficiency of your computer. As the conductors in your system heat up, their resistance increases. The power supply in any given computer will only output a constant voltage on several rails. Joule's law gives us Power = Voltage * Current, and Ohm's law gives us Voltage = Current * Resistance. The increasing resistance reduces the amount of current drawn from the circuit. The power supply is generating a constant voltage, so the decrease in current actually means your system is drawing less power than if it was cooled down. At this point, the processor's logic fails and your programs will either lag or crash. Excessively high temperature will damage components. Some people argue that the higher temperature is a sign of increased waste. This is not the case as the waste heat isn't being dissipated as quickly; the total amount of energy being thrown out as heat is the same in the event of reduced airflow, just more concentrated. Modern systems will detect this increase in temperature and increase the fan speed in an attempt to cool the system to acceptable levels, which does increase the amount of power drawn from the system as a whole. Your typical fan then only draws 1.5W at full speed, with a typical computer having 2 or more fans. It would be hard to call this increase in output power significant on a planetary scale, but keeping the vents clean would prevent the additional fan speed. First of all, as a consumer and engineer, I agree with the environmentally nasty components of all electronics, and that in general, more efficient power supplies and designs should be regulated.

While it is important to keep air flowing through the enclosure of your computer, the building up of heat does not reduce the efficiency of your computer. As the conductors in your system heat up, their resistance increases. The power supply in any given computer will only output a constant voltage on several rails.

Joule’s law gives us Power = Voltage * Current, and Ohm’s law gives us Voltage = Current * Resistance. The increasing resistance reduces the amount of current drawn from the circuit. The power supply is generating a constant voltage, so the decrease in current actually means your system is drawing less power than if it was cooled down. At this point, the processor’s logic fails and your programs will either lag or crash. Excessively high temperature will damage components.

Some people argue that the higher temperature is a sign of increased waste. This is not the case as the waste heat isn’t being dissipated as quickly; the total amount of energy being thrown out as heat is the same in the event of reduced airflow, just more concentrated.

Modern systems will detect this increase in temperature and increase the fan speed in an attempt to cool the system to acceptable levels, which does increase the amount of power drawn from the system as a whole. Your typical fan then only draws 1.5W at full speed, with a typical computer having 2 or more fans.

It would be hard to call this increase in output power significant on a planetary scale, but keeping the vents clean would prevent the additional fan speed.

]]> By: b79 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-697 b79 Wed, 16 Apr 2008 23:00:36 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-697 Well written article! But I'd like to share something with you as far as green computing goes. If you guys want to know a company that's got the best form of green pc consciousness, it's Userful. They can take a single existing PC and using their software, turn it into 10 workstations. See for yourself - http://www.userful.com. Well written article!

But I’d like to share something with you as far as green computing goes.

If you guys want to know a company that’s got the best form of green pc consciousness, it’s Userful. They can take a single existing PC and using their software, turn it into 10 workstations. See for yourself – http://www.userful.com.

]]> By: b79 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17164 b79 Wed, 16 Apr 2008 23:00:00 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-17164 Well written article! But I'd like to share something with you as far as green computing goes. If you guys want to know a company that's got the best form of green pc consciousness, it's Userful. They can take a single existing PC and using their software, turn it into 10 workstations. See for yourself - http://www.userful.com. Well written article!

But I’d like to share something with you as far as green computing goes.

If you guys want to know a company that’s got the best form of green pc consciousness, it’s Userful. They can take a single existing PC and using their software, turn it into 10 workstations. See for yourself – http://www.userful.com.

]]> By: Susan http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-696 Susan Mon, 14 Apr 2008 18:19:47 +0000 http://cleantechnica.com/2008/04/14/green-pcs-and-optimizing-their-lifecycle/#comment-696 What a great article on how to manage computer use and what to do with e-waste when done with it. :) What a great article on how to manage computer use and what to do with e-waste when done with it. :)

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