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2
votes
1answer
41 views

Choosing the right UPS

I'm trying to determine the size of the UPS I should buy. Ideally, I would like something to keep my system on for an hour in case of a power cut but I don't have the budget for that. Basically I want ...
9
votes
6answers
2k views

USB backlit keyboard power consumption

Does someone know the power consumption of an USB backlit keyboard like the SteelSeries Apex? I'd like to connect it to a Keyboard/Mouse USB Switch that goes to PC by one USB 2.0 cable. The mouse I'm ...
-2
votes
2answers
123 views

Planning out an NES PC build (on the cheap) [closed]

I'm in the process of building a PC inside an NES case. I'm trying to get as much power out of it without breaking the bank. Rigging up the power switch and reset has been well documented, so this ...
2
votes
1answer
55 views

Pc consumes 13W also when PSU is switched off

I noticed that my pc consumes 13W also when PSU is switched off. So I opened the PSU and I found a yellow box directly connected with the plug's socket, before the on-off button. This yellow box has ...
0
votes
1answer
52 views

How many amperes and watts do I need for this setup?

I'm trouble calculating how many amperes I need for this setup. I know I need around 500-600W, but my current PSU is 600W but only has 14A on the +12V rail and I don't know if it can run this new ...
1
vote
0answers
133 views

RAM capacity vs power consumption in S3 Suspend-to-RAM mode

My netbook with 1GB DDR2 RAM module takes 16% of battery for 24 hours of S3 standby mode (STR - Suspend-to-RAM). That amounts to the power consumption of 0.32 Watts in standby. That also means that ...
0
votes
2answers
341 views

Custom built machine has much higher power consumption than expected

I built a machine according to the specs of a computer magazine (c't, Germany). According to the magazine, the power consumption should be at around 10W. I don't want to go into the specifics of the ...
1
vote
2answers
205 views

How much power did a computer consume for an hour?

Imagine a computer system having 450W SMPS . It have 65W CPU and 4GB RAM. The computer is a server which frequently uses RAM and CPU. How much power does it will consume ? (I asking this to ...
0
votes
3answers
3k views

LCD/LED screens; how color affects the power consumption?

I have read on web, for CRTs black color would reduce the power consumption of the monitor but for LCDs it's the white color that reduce the power consumption. It says "The way LCD's produce black is ...
0
votes
2answers
246 views

Power consumption percentages of notebook (and netbooks) components [closed]

I see many component manufacturers boast that their products use N% less power than their competitor or older version product, but nobody says how much it matters in comparison to total power ...
1
vote
2answers
260 views

UPS acting up after upgrading GPU

I have a second PC, hooked up to a 650VA UPS. I recently upgraded its graphics card from a Radeon HD6850 to a Geforce GTX580. When I updated the Windows Experience Index thingy, the UPS started ...
0
votes
3answers
166 views

Battery friendly environment for watching movies and reading e-books

On my laptop, I'm currently running Ubuntu 12.04 Beta 2, which works great. But sometimes I just want to lie in the couch watching a movie or reading an e-book. At times like that, the power ...
2
votes
2answers
2k views

Reduce power consumption of gaming computer while idle

This is my current build: EVGA X58 (first generation) motherboard Intel i7 965 clocked @ 3.3 Ghz 3x DDR3-1600 Corsair RAM at stock timings and voltages Corsair AX750 80 Plus Gold PSU 1 ...
1
vote
1answer
860 views

How to make VGA display go into standby when no computer/laptop connected

At my work most people use laptops, in combination with a stand-alone Dell LCD (connected through a VGA cable). Problem: if you unplug your laptop from the display, the display doesn't go to sleep ...
2
votes
2answers
256 views

pc watts usage comparison

If I have an atom pc drawing 40 watts at peak usage, does that really mean it is consuming less power than a 60 watt lightbulb? I'm no electrician, and I have no knowledge of how electricity is ...
4
votes
2answers
1k views

P4 vs. I3/i5 *T in power consumption and performance

I am running an Intel P4 prescott with HT on my home server (linux file server on encrypted disks on software-RAID5 and virtualisation host for three further machines). The performance for this ...
5
votes
2answers
324 views

Reduce power use on computer

I watch a lot of movie's on my computer which is connected to my TV. Problem is i built the pc to be a gaming computer and it has the power supply to match (1200w). Is there a way to set it into a ...
1
vote
1answer
161 views

Will a PSU generate more heat if the power consumption is much lower than what the PSU provides?

If I buy a 500W PSU but most of the time my machine only needs under 100W. Will the redundant power transfers to heat? If this is true, does this mean that buying a PSU of W closely matching the ...
1
vote
1answer
300 views

Upgrading hardware in a Dell Optiplex GX280

I have a Dell Optiplex GX280 which has a 250 Watt PSU. It currently has 512 MB RAM, built-in graphics chip and a 40 GB HDD. I am thinking of upgrading the RAM to 4 GB, the HDD to 250 GB, and adding ...
1
vote
2answers
607 views

Power supply on the Google TV Revue [closed]

Does anyone know how much power the Logitech Revue consumes? I can't find it anywhere...
4
votes
3answers
303 views

What is keeping my disks awake?

I have configured my hard drives to go to sleep after 1 minute of inactivity. This used to work very well; the server was almost always dead silent. But recently the drives are more often awake. Can ...
1
vote
2answers
2k views

Monitor notebook power consumption on Windows 7 x64

there is this nifty tool called NHC (Notebook Hardware Control) for 32 bit notebooks which also shows the current power consumption. Now I have a 64 bit laptop where NHC doesn't work. Is there any ...
1
vote
1answer
181 views

Power consumption against Tower and NSLU2

I'm in need of a media server running at home and i'm undecided what to run it on. They main aim is to run something with minimal power consumption. What would be the best option for running it on. I ...
8
votes
4answers
1k views

Multicore CPU energy requirement and load balancing

I am interested in load balancing for multicore CPU systems. If you use 1 CPU with multiple cores, is it more energy efficient to balance the load on several cores, or try to fill up single cores and ...
4
votes
4answers
2k views

Electricity usage of a laptop vs. a desktop [closed]

How much electricity does a laptop use compared to a desktop?
3
votes
5answers
3k views

Is there considerable energy saving using a black background on my website?

I had heard that you can save power by using a black background instead of a coloured background. Is there any evidence that this saves power on people's monitors? Is this a way that we can cut down ...
1
vote
1answer
711 views

Max. power consumption of ATI Radeon X850 Pro graphics adapter

What is the maximum power consumption of a graphics adapter with an ATI Radeon X850 Pro GPU? Proofs via sources (downloadable manuals) would be appreciated.
0
votes
3answers
893 views

Given power info on a CRT monitor, how can I calculate power consumption (kWh)?

I have a Dell CRT Screen and the only info I have is this: AC input voltage: 90 to 264 VAC frequency: 50 or 60 Hz + 3Hz current: 1.5A max. (RMS) at 120 VAC; or 0.8A max. (RMS) at 220 VAC How can ...
0
votes
2answers
726 views

How to calculate power/energy taken by computer and screen [duplicate]

Possible Duplicate: How can I calculate power consumption of my PC in Watt? I need to investigate how much power my Linux machine uses per week. I can take a look at the PSU but I would ...
2
votes
2answers
1k views

How expensive to run PC 24/7 or how to figure out how to determine it? [duplicate]

Possible Duplicate: How can I calculate power consumption of my PC in Watt? I realize this question is difficult to answer as it would be different based on users location, what there PC is ...
10
votes
5answers
16k views

How can I calculate power consumption of my PC in Watt?

How can I calculate power consumption of my PC in Watts, to prove my House owner (I live on rent), my PC doesn't consume much power? He blames me for huge power bills even though he uses a Fridge, ...
4
votes
3answers
3k views

Do high-end graphics cards raise your electricity bill by much?

I currently own an Radeon HD 5570 graphics card which "supposedly" consumes a very small amount of power. The problem is that it stutters during some games and movies. My machine is an Intel quad core ...
4
votes
1answer
243 views

Energy Efficiency: OLED

Which of the two is more energy efficient on a OLED Display? White text on a black background Black text on a white background Links to OLED vs LCD, efficiency wise, would also be appreciated.
5
votes
2answers
3k views

What's the component that consumes most power in a computer?

I've never been a serious hardware guy, so I got this question. What's the component that consumes the most in a computer? And more generally, how is distributed (more or less) the consumption among ...
0
votes
3answers
309 views

dimm display when pressing energy save button

In Windows 7 how can I automatically dimm the display when I press the energy save button of my laptop. I do not find a setting for this to this explicitly when pressing the button.
2
votes
5answers
1k views

How much electricity will I save if I use the onboard graphics card

If I use onboard video instead of a PCI-E card, will I save much money in the electricity bill?
0
votes
2answers
94 views

Approximating electrical consumption of configurations [closed]

I'm interested, are there any sites where one could find an approximation of electrical consuption, so if one has different configurations, one could approximately calculate consumption of that ...
5
votes
5answers
960 views

Solid State Disk for a desktop computer [closed]

I am building a new desktop computer and would like the performance and energy benefits of a solid state hard drive of 128GB-256GB. Looking around the internet I can't seem to find anything suitable. ...
18
votes
5answers
12k views

Does installing larger RAM means consuming more energy?

Since every bit of a dynamic memory module needs to be refreshed to keep it's data, does that mean that if I install a module with more capacity than the current one on my laptop, more energy will be ...
3
votes
3answers
9k views

Wifi router that has a *button* to turn wifi signal off? [closed]

Anobody knows about any wifi routers that have a button (or switch) to turn the wifi signal off? BTW: there are a few reasons I can think of why one would want to do this but not turn of the ...
1
vote
1answer
565 views

Effects of Nvidia graphics card aperture change

I have laptop with nvidia 8200M G.In BIOS setting I can adjust the aperture size from 64 MB to 512 MB.This change reflects as increase in the available RAM. Considering that I don't play ANY games as ...
3
votes
2answers
678 views

USB to power other devices

I have a small desk fan that is currently powered by 4 AA bateries, I have measured the voltage output and it is 5.5VDC which got me thinking. Is it safe to modify the fan to run off a USB port on my ...
2
votes
2answers
459 views

Power adapters vs ATX PSU

I have a home server based on an old Pentium III 933 @ 500 MHz PC with 512MB RAM, a 60GB hard drive, two Gigabit NICs, running Ubuntu Server 9.04, and there are three network devices "supporting" it: ...
9
votes
9answers
5k views

Will leaving the laptop power brick connected to the power socket be dangerous?

My co-workers (who worked with the company longer than I have) loves to remove their laptop's power cord when they need to move around the office. I frown on this practice since they usually don't ...