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pcernie
Legend
Joined: Sun Apr 26, 2009 12:30 pm
Posts: 45931
Location: Belfast
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_________________Plain English advice on everything money, purchase and service related:
http://www.moneysavingexpert.com/
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| Wed Jun 02, 2010 12:27 pm |
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adidan
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:43 pm
Posts: 5048
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Cool, gradually eliminating cables.
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Fogmeister I ventured into Solitude but didn't really do much.
jonbwfc I was behind her in a queue today - but I wouldn't describe it as 'bushy'.
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| Wed Jun 02, 2010 4:53 pm |
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Amnesia10
Legend
Joined: Fri Apr 24, 2009 2:02 am
Posts: 29240
Location: Guantanamo Bay (thanks bobbdobbs)
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It will only be possible if the screen has a low energy requirement. LED screens are getting very good now. While it might be a desk top power savings might become a very big issue in future. When a plasma TV can use as much as 400W it can become expensive for long periods. Cut that down to 6 or so watts and it could be used in many places. I can see server centres using them as a way to keep total power use down.
_________________Do concentrate, 007... "You are gifted. Mine is bordering on seven seconds." https://www.dropbox.com/referrals/NTg5MzczNTkhttp://astore.amazon.co.uk/wwwx404couk-21
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| Wed Jun 02, 2010 5:08 pm |
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Nick
Spends far too much time on here
Joined: Thu Apr 23, 2009 11:36 pm
Posts: 3527
Location: Portsmouth
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Amnesia there are surely much larger power savings to going after in the data centre (fresh air cooling could be one example) before replacing their tiny numbers of monitors with energy efficient ones?  _________________
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| Wed Jun 02, 2010 6:02 pm |
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forquare1
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:36 pm
Posts: 5161
Location: /dev/tty0
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Agreed. I visited the Sun's UK datacenter and there were no screens in it, a handful of people looked after the room from their usual office desks so used regular monitors. Replace those monitors and that's your entire saving.
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| Wed Jun 02, 2010 6:15 pm |
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Amnesia10
Legend
Joined: Fri Apr 24, 2009 2:02 am
Posts: 29240
Location: Guantanamo Bay (thanks bobbdobbs)
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It probably does not even show up on the scale of total energy usage by a data centre, but in comparison to existing monitors they could justify the expense. Overall where they will be used is in call centres where there are hundreds or thousands of low spec screens where they could make a big difference to power used. _________________Do concentrate, 007... "You are gifted. Mine is bordering on seven seconds." https://www.dropbox.com/referrals/NTg5MzczNTkhttp://astore.amazon.co.uk/wwwx404couk-21
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| Wed Jun 02, 2010 7:57 pm |
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JJW009
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:58 pm
Posts: 8767
Location: behind the sofa
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You'd have to be careful what you plugged it in to. The USB 1 and 2 specifications states that only 0.5A should be drawn in high power mode (2.2W), and exceeding this value can blow the regulators. It's a very common fault on laptops which are built to a minimum power spec; iPods used to be the worst offenders for killing them by ignoring the rules. http://en.wikipedia.org/wiki/Universal_Serial_Bus#Power2 x USB 3 provides 2 x 4v x 0.9A = 7.2W and newer standards exist for power-only, but who has that yet? In the future, not needing a separate power supply for the monitor could make big savings and also make the wiring neater, but please don't try to run one of these off a netbook today! Actually reminds me of an old Oliveti I have in the garage. The Amber screen ran off a 12V feed in the CGA connector. _________________jonbwfc's law: "In any forum thread someone will, no matter what the subject, mention Firefly." When you're feeling too silly for x404, youRwired.net
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| Wed Jun 02, 2010 11:01 pm |
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l3v1ck
What's a life?
Joined: Fri Apr 24, 2009 10:21 am
Posts: 12700
Location: The Right Side of the Pennines (metaphorically & geographically)
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Why would I want to waste two USB ports on that?
It's good that it's power efficient, but it still could be with a normal connection.
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| Wed Jun 02, 2010 11:06 pm |
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Amnesia10
Legend
Joined: Fri Apr 24, 2009 2:02 am
Posts: 29240
Location: Guantanamo Bay (thanks bobbdobbs)
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While the lower power consumption is good why can't it use a dedicated cable to draw power and signal from the main box as in previous computers? Again saving on power but without using valuable USB sockets.
_________________Do concentrate, 007... "You are gifted. Mine is bordering on seven seconds." https://www.dropbox.com/referrals/NTg5MzczNTkhttp://astore.amazon.co.uk/wwwx404couk-21
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| Wed Jun 02, 2010 11:13 pm |
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JJW009
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:58 pm
Posts: 8767
Location: behind the sofa
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1. Using the computer's PSU saves on additional PSU efficiency wastage. Drawing 10 watts more from the PC PSU probably only increases consumption by around 7 Watts, while a dedicated PSU might use twice that.
2. Not requiring a PSU makes it cheaper and more ecological to produce, and also to dispose of.
3. Fewer plugs is always a good thing.
I've been toying with the idea of running a 12V ring around the house for a similar reason. Mains adapters are not efficient, so by running everything from a single supply there are large savings to be made.
_________________jonbwfc's law: "In any forum thread someone will, no matter what the subject, mention Firefly." When you're feeling too silly for x404, youRwired.net
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| Wed Jun 02, 2010 11:51 pm |
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adidan
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:43 pm
Posts: 5048
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That sounds uncomfortable JJ. 
_________________
Fogmeister I ventured into Solitude but didn't really do much.
jonbwfc I was behind her in a queue today - but I wouldn't describe it as 'bushy'.
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| Thu Jun 03, 2010 7:17 am |
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rustybucket
I haven't seen my friends in so long
Joined: Thu Jun 18, 2009 5:10 pm
Posts: 5836
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This is pretty cool.
There is another reason - the weight reduction due to not having to include a transformer and attendant regulators.
Frankly I can see quite a few applications for this
_________________Jim
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| Thu Jun 03, 2010 7:25 am |
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adidan
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 9:43 pm
Posts: 5048
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Hang on, I may be being a bit dumb but what about the connector from the GPU to the monitor? Me no see, I presume (although I have no idea) you would still need this for higher powered GPUs? Mind you the newer ones would only need a HDMI cable which is no bigger than a USB anyways. If a sparky bod could help me out with this one please.
_________________
Fogmeister I ventured into Solitude but didn't really do much.
jonbwfc I was behind her in a queue today - but I wouldn't describe it as 'bushy'.
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| Thu Jun 03, 2010 8:03 am |
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