Questions tagged [energy]
26 questions
116
votes
5 answers
When do I need a pure sine wave UPS?
I would like to buy a rack UPS that would support all the IT related electronics in a SOHO room. This include switches, routers, PCs, servers, NAS. During my research I found out that there are different types of UPSs and the ones that generate pure…
totymedli
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7
votes
1 answer
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 /sys/class/power_supply/BAT0/uevent for that instant:
POWER_SUPPLY_NAME=BAT0 …
JJT
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7
votes
3 answers
Does "Reserve Battery Level" in Windows perform any function besides the popup?
In Windows 7, when a system reaches the Reserve Battery Level, does the OS perform any function(s) besides showing a popup indicating that the Reserve Battery Level has been reached?
According to this source:
Reserve power means programs and the OS…
RockPaperLz- Mask it or Casket
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6
votes
1 answer
Windows 10 time-controlled power settings?
Is there a way to configure Windows that it uses different energy profiles at different times?
For example: Between 8:00 PM and 6:00 AM I want Windows to use the "Power saver" profile and between 6:00 AM and 8:00 PM I want Windows to use either the…
Dennis
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- 2
5
votes
3 answers
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, and deriving it from the adapter specs (12V DC @…
Rabarberski
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4
votes
5 answers
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 the plan - sometimes I just want to instruct the…
RoboShop
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3
votes
1 answer
Prevent Windows 10 from going to sleep on lock screen
How can I prevent Windows 10 from going to sleep on the lock screen? I want the screen to stay on forever on the lock screen without moving the mouse.
This would be easy to achieve if I was signed in and viewing my desktop, but that's not what I'm…
theabcpro
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3
votes
6 answers
How can I turn my laptop display off completely (while script is running)?
I want turn my laptops (Lenovo 100s) display off completely because I'm running a little script on it and I don't want waste energy. Because I run a script, it's not possible using Windows settings to turn the display off after specific time (as…
cnmesr
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2
votes
1 answer
Does the choice of CPU affect the energy budget of a commodity server farm?
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 take one such typical server – an Intel Xeon…
Max
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2
votes
0 answers
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 that they provide estimated values of the…
Ricardo
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1
vote
3 answers
How to know how much electric power a laptop is consuming?
On a laptop charger adapter it is written '65 Watt'. When I am using that laptop plugged into an AC socket, does it mean that it consumes 65 watt per second?
I think it actually depends on usage. But is the 65 watt the maximum power consumption for…
Fsalad
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1
vote
1 answer
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 display technology that is capable or pretty high…
barrymac
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1
vote
2 answers
How do I resolve the powercfg energy report errors and warnings?
Ran the following command from an elevated command prompt:
C:> powercfg /energy /output "c:\energy.html"
The energy report has an error from Realtek and a bunch of warnings.
Are all of these OK to ignore? If not, how can I resolve them?
See link…
user1283413
1
vote
2 answers
Power of NVIDIA GPU out of limits (Nvidia A100)
I am executing a CUDA kernel in my A100 GPU and I've realized that the power consumption at some points is higher than nvidia-smi given range:
The picture has been taken from nvtop.
Is it something that I should be worry about?
Bub Espinja
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- 5
1
vote
1 answer
Monitoring my computer's energy's usage - is it too low?
My desktop computer is an i3-2100 with 1 DVD drive, 2 HDDs and 2 SSDs connected to it, as well as a CPU fan and a case fan. All of this is connected to my PC via extension cord (i.e. power bank), which is in turn connected to a plug-in energy…
Hashim Aziz
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