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2
votes
4answers
3k views

How much power does the Netgear WNDR3800 (N600) router consume?

I am interested in the actual (i.e., measured) power consumption of a Netgear WNDR3800 router (also known as N600 wireless dual band gigabit router) I couldn't find any reliable indication online, ...
2
votes
1answer
119 views

Does the choice of CPU affect the energy budget of a commodity server farm? [closed]

How does the choice of CPU affect the energy budget of a commodity server farm? I'm wondering how much it costs per year to power the kinds of commodity servers Facebook, Twitter et al. use. Let's ...
1
vote
1answer
13 views

Understanding the output of /sys/class/power_supply/BAT0/uevent

Ubuntu shows the remaining battery time on my desktop as ~2 hours. I was trying to arrive at this same value from /sys/class/power_supply/BAT0/uevent. The output of cat ...
1
vote
0answers
27 views

How to monitor energy usage in processor

I'd like to monitor the energy consumption of cpu on a server. I've studied about IPMI and with it is possible monitor cpu directly at hardware. I tested some software, like powertop, but I believe ...
0
votes
2answers
354 views

Temporarily change energy settings without having to change my power plan in Windows 7

I'm not particularly fond of windows 7's energy management features. I think it's really cumbersome as I seem to have to change the current plan to do anything. And sometimes I don't want to change ...
0
votes
1answer
153 views

lowest achievable watts for decent resolution display?

I have an unusual question. The scenario is onboard computing / entertainment for a live aboard boat with a very tight energy budget. I'm trying to figure out what is the most energy efficient ...
-1
votes
2answers
30 views

What do OUTPUT charts of PC Power Supplies mean?

I'm looking at various power supplies and they all come with different output cables. They also have different OUTPUT charts, for example: What I'm wondering: What are these output columns are ...
-1
votes
1answer
57 views

Why do USB ports cease to work? [closed]

I had an e-reader plugged into one of the 3 USB ports of my laptop. Later I realized it wasn't charging up anymore. I switched ports and the issue was gone. Why do USB ports stop working suddenly?
-2
votes
0answers
26 views

Best option for saving energy [closed]

Which is better option among sleep, hibernate and shutdown in terms of energy saving ? And which is better in terms of computer's life ?