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October 3rd, 2008

Put your PC on an energy diet!

Posted by Adrian Kingsley-Hughes @ 5:38 am

Categories: Eco-friendly

Tags: PC, Energy Saving, Desktops, Hardware, Adrian Kingsley-Hughes

With soaring energy prices people are concerned about how much electricity their gadgets are consuming. Go green by saving dollars and the environment by putting your PC on an energy diet!

Note: You can look at this post in one of two ways. You can either think of it as making you and your tech a little bit more eco-friendly or you can look at it as a way to help you save a few dollars. Either way, I’m sure you’ll agree that it’s a good idea to save power while at the same time saving money.

Simple steps!

Simple energy saving tips that you can put into practice today!

Are you looking for ways to cut down on your power bills?

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  1. First things first!
    Find out just how much juice your PC is currently using. There are several devices on the market that will allow you to measure the how much power your PC (and other devices) is consuming.
    Two of my favorites power monitoring devices are:
     - Kill-A-Watt - Simple set of features
     - Watts Up Pro - Advanced set of features, including logging
    Either of these will tell you exactly how much power your PC is consuming, and how much it is costing you to run your PC.
    Tip: While some power monitors will do the math for you, with some of the cheaper ones you will have to calculate for yourself how much the power is costing you. Fortunately the math is pretty straightforward:
    ((Watts x Hours in Use)/1000) x Cost per kilowatt-hour = Total cost
  2. Put Vista to sleep
    If you’re running Windows Vista then make sure that you get S3 sleep working right if you are going to be making use of it. A properly powered-down PC in sleep mode should be drawing less than 10 watts or so.
    Tip: XP users can find power-saving tips here.
  3. Off is better than sleep!
    I’ll be honest with you and come clean about the fact that I’m no fan of sleep mode. Why? Because even if you can power down a PC to the point where it consumes less than 10 watts, that’s 10 watts too much when you look at today’s energy prices. Scale up 10 watts over the millions of Vista PCs out there and you quickly realize that sleep mode is a concept from a past era (it’s Vampire Power that Microsoft is making you waste to make Vista seem faster during boot up).
    Tip #1: If you have more than one PC then you’re making even bigger energy savings by shutting them off as opposed to putting them in sleep mode.
    Tip #2: Contrary to popular belief, you’re not wearing out your PC by switching of off regularly.
  4. Get a “smart” power strip
    Chances are that you have a fair bit of kit attached to your PC that you can safely power down as soon as your PC is off. An easy way to do this is to get a “smart” power strip that powers down specific outlets when you switch off your PC.
    Tip #1: You might be surprised to find that something as simple as your speakers are drawing 15-20 watts all day, every day. A “smart” power strip can help you put a stop to this waste.
    Tip #2: A cheaper solution is to invest in a power strip where each outlet has a switch.
  5. Off the grid!
    Are you running a volunteer grid computing applications where you’re searching for aliens, calculating Pi to a crazy number of digits, or folding proteins then these applications are pushing your PC hard when it’s supposed to be idle.
    Tip: A PC running applications such as Folding @home can be really expensive to run - if you don’t believe me, hook up a Kill-A-Watt and see for yourself!
  6. Go Notebooks!
    Notebooks use far less power than desktops.

Do you currently run volunteer grid computing application (such as Folding@home) on your PC?

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If yes, have you considered how much this might be costing you?

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Does knowing how much it’s costing you change your views on participating?

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Next –>

Pages: 1 2 3

Want to get in touch? Feel free to drop me a note!

Right to Reply: Should any industry representatives wish to comment on any posts on Hardware 2.0, I will be happy to publish their reply verbatim on this blog.

Adrian is a technology journalist and author who has devoted over a decade to helping users get the most from technology. He also runs a popular blog called The PC Doctor. See his full profile and disclosure of his industry affiliations.

  • Talkback
  • Most Recent of 68 Talkback(s)
RE: Put your PC on an energy diet!
Don't forget that off isn't really off for almost all computers.
The only way to really turn the computer off is the power supply switch or if it doesn't have one then turn off the plug strip or un... (Read the rest)
Posted by: rdhalsteatzd Posted on: 10/15/08 You are currently: Logged In | Log out
The wonders of USB and Firewire... Zogg   | 10/03/08
But having said that... Zogg   | 10/03/08
Vista's sleep mode is a hybrid ye   | 10/03/08
Does Vista uses 0W in Sleep mode? Zogg   | 10/03/08
No, it does not. Do you unplug your TV? Cable box? DVR? ye   | 10/03/08
I turn my TV completely off, yes. Zogg   | 10/03/08
I did not asked if you turned it off. I asked if you unplugged it. ye   | 10/03/08
Ir DOESN'T, silly! Zogg   | 10/03/08
Then you have an old TV. ye   | 10/03/08
Hybrid mode uses same power as sleep mode georgeou   | 10/03/08
Hybernate does not wake nearly as quickly as sleep. ye   | 10/03/08
Never Power off a PC if not needed Ludovit   | 10/03/08
You're about 10 years out of style georgeou   | 10/03/08
I'd have to disagree Ludovit   | 10/03/08
I have to agree with you Lerianis   | 10/05/08
..... Linux User 147560   | 10/05/08
Why don't you cite specific failures? What fails? georgeou   | 10/05/08
I did ... Ludovit   | 10/06/08
What does hardware failure have to do with energy savings??? Budman o Riverside   | 10/06/08
RE: Put your PC on an energy diet! Monosdeja   | 10/03/08
power that LED Maarek   | 10/03/08
For bachelors, etc. Rick_R   | 10/03/08
Throttle the CPU bryantrv   | 10/03/08
Of course it does georgeou   | 10/03/08
Then.. bryantrv   | 10/03/08
Power save mode is on by default in XP and Vista georgeou   | 10/05/08
RE: Put your PC on an energy diet! davidsmontgomery@...   | 10/03/08
BOINC doesn't have to cost more cputrdoc   | 10/03/08
Yes, but you could still turn it OFF. Zogg   | 10/03/08
S3 sleep mode is 2W, not 10 watts georgeou   | 10/03/08
2W is more than 0W. Zogg   | 10/03/08
You are still talking about "stand-by" mode. Zogg   | 10/04/08
What is the manufacturer and model of your TV? ye   | 10/04/08
But how hard did you look? Zogg   | 10/04/08
Again I ask: Who is the manufacture and what is the model of your TV? ye   | 10/04/08
Didn't you read? My TV uses 0W when off. Zogg   | 10/04/08
Again I ask: Who is the manufacture and what is the model of your TV? ye   | 10/04/08
You are very predictable. Zogg   | 10/04/08
@Zogg: There's an easy way to find out who's wrong. Just provide... ye   | 10/04/08
Really? By all means, share this wonderful method... (NT) Zogg   | 10/04/08
@Zogg: I already have. Repeatedly. I'll repeat once more: ye   | 10/04/08
In case you haven't already noticed... Zogg   | 10/04/08
Specifically- Zogg   | 10/04/08
@Zogg: LOL! You don't trust me? Do you think I'm going to use... ye   | 10/04/08
No, just produce a number out of "thin air". Zogg   | 10/04/08
@Zogg: I already proved you wrong. No more need be done. ye   | 10/04/08
Now who's refusing to provide information? Zogg   | 10/04/08
@Zogg: It's very simple. Using the manufacturer and model number I can... ye   | 10/04/08
You didn't answer the question! You just restated it! Zogg   | 10/04/08
Zogg Zogg: No surprise you dodged it again. ye   | 10/04/08
I've already stated my terms, and am still waiting for you to fulfiil them. Zogg   | 10/04/08
@Zogg: Your terms are nothing more than a pathetic... ye   | 10/04/08
I see - you had no method. Zogg   | 10/04/08
@Zogg preachjohn   | 10/04/08
because it saves money. jan bLinQue   | 10/05/08
..... Linux User 147560   | 10/05/08
Replace your power hungry desktop with ... joemartn   | 10/05/08
Hmmm... Mike (not Cox)   | 10/05/08
My desktop computer runs 50 watts in idle! Grayson Peddie   | 10/06/08
RE: Put your PC on an energy diet! dprozzo   | 10/05/08
Speedstep on a Desktop KeeBaud   | 10/06/08
Advice (and a little debate) CobraA1   | 10/06/08
cheaper to add another PC in my case Jim Johnson   | 10/06/08
really a bachelor ttheys@...   | 10/06/08
Added security benefit of the OFF Button Dr_Zinj   | 10/06/08
It's not exempt? CobraA1   | 10/06/08
RE: Put your PC on an energy diet! bruceyoung   | 10/15/08
RE: Put your PC on an energy diet! rdhalsteatzd   | 10/15/08

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  • Put your PC on an energy diet!
    With soaring energy prices people are concerned about how much electricity their gadgets are consuming. Over on ZDNet I've posted a handful of tips on how you can put your PC on an energy diet! Here's a taster:. First things first! ...

    Trackback by The PC Doctor's blog — October 3, 2008 @ 10:47 pm

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