Windows 7 Energy Efficiency

re: Windows 7 Energy Efficiency

bluefisch200 — Tue, 06 Jan 2009 12:21:06 GMT

Very nice, hope for more, my HP ElitBook(Intel SSD base) now runs with Vista between 7-10 hours. If 7 gives us more power saving abilities, that time will be longer, so I can use my PC while I flight from USA to Europe the whole time long.

Offtoppic: I heard about Windows Seven Beta Release for tomorrow, is that true?

re: Windows 7 Energy Efficiency

Helmore — Tue, 06 Jan 2009 13:14:44 GMT

I expected the power consumption of a notebook display to be pretty substantial, but I never expected it to be this much. Also, you'd think the CPU is more power hungry than the chipset and this does not seem to be true according to this data. Pretty interesting these numbers and not really what I expected. It does show that OLED can't come soon enough (if they can increase lifespan).

BTW, I am also very interested in the open Beta for Windows 7, but I'm wondering though, how open is it going to be? Can pretty much anyone participate, or do you need to have a TechNet subscription or something similar? I'm hoping to hear more on this topic, as I can't wait to try Windows 7 myself. This blog has certainly raised my expectations of what's to come for Windows 7. So keep up the good work guys and good luck with finalizing Windows 7.

re: Windows 7 Energy Efficiency

Jalf — Tue, 06 Jan 2009 14:51:40 GMT

A while ago, Anandtech stumbled across some pretty huge differences in battery life between a Vista laptop and a Macbook:

http://www.anandtech.com/mac/showdoc.aspx?i=3435&p=13

Have you looked at these numbers, and if these figures are valid, is Win7 likely to compare better to a Mac? (If you think the figures are invalid, it'd be interesting to hear your reasoning as well)

re: Windows 7 Energy Efficiency

bluefisch200 — Tue, 06 Jan 2009 15:21:15 GMT

@Jalf

You need to see that OS X runs on a small number of hardware components and the developers have it very easy to perform the system for more running time...but windows need to do that with milions of hardware configurations, so please dont compare OS X and Windows, if Windows can beat OS X in that point something goas very wrong with the Macs...

re: Windows 7 Energy Efficiency

DPilcher — Tue, 06 Jan 2009 16:37:17 GMT

Thanks for the article.

Can hibernate not be made significantly quicker by adding a little intelligence?

E.g. the cache is a large use of RAM. At hibernate, dump the cached data and then only write the remaining, allocated pages to disk. Rather than storing say 4GB, you'd get it back down to say 1.5GB on my PC at the moment.

BTW, the Vista hibernate with no percentage bar (and if I remember, a blank screen), is dire... Hopefully the hibernate experience is now better again.

re: Windows 7 Energy Efficiency

keff — Tue, 06 Jan 2009 16:42:44 GMT

Jalf - My words, I like windows, but this graph is sad to watch: http://www.anandtech.com/mobile/showdoc.aspx?i=3439&p=13 - see Battery life: Internet usage relative to battery capacity, all Macs are getting over 6 minutes per Wh, while Windows laptops score between 1-3 minutes/Whr :(.

I know that Apple is in complete control of hardware and drivers, but it is still a 200-400% (let's not talk about DTRs) difference in power efficiency, and it is hard to believe that Nvidia/ATI/AMD/Intel would miss so many optimizations after years of driver development (as a similar difference exists even with Vista/OS X on a same machine where only drivers or OS power management can make difference).

If anyone of dev team has some explanation, I'd like to hear it.

Automatic Sleep

mdaria510 — Tue, 06 Jan 2009 16:48:02 GMT

There is one feature I was really looking forward to seeing in windows 7 - a way to determine which program/process is preventing automatic sleep. On every PC I have in my house, from Vista desktops to XP laptops, the automatic sleep function works for a while, and then inexplicably stops. I can still manually sleep/resume it, but I can leave the system idle for days, and it wont go back to sleep. A reboot usually fixes it for a while. The monitor always goes blank on time, and it never wakes up on it's own, but there is absolutely *zero* way as far as I can tell to figure out why it wont go to sleep.

Is there any related functionality in Windows 7 that I'm not aware of?

re: Windows 7 Energy Efficiency

spivonious — Tue, 06 Jan 2009 17:53:48 GMT

mdaria510 - are you sharing media on the PCs? By default, Vista disables automatic sleep when sharing media. You can turn that setting off in the power settings.

jalf - I'm also curious what MS's response will be to the large discrepancy in battery life discovered by Anand.

Remote Desktop Sleep/Hibernate Issues

sbowe — Tue, 06 Jan 2009 17:59:52 GMT

Currently I do not use sleep or hibernate on my home computer because I have had problems trying to access it through remote desktop. If this feature already exists I cannot figure out how to make it work reliably.

One other problem I have found is that my monitor turns on and stays on the logon screen when I remote desktop to that computer and log off. I have come home many hours after using the connection and found that the monitor is still on. I have set that monitor to sleep after 10 minutes of not being used and RDP seems to be the only app that somehow turns it back on.

I hope some progress can be made on these issues in Windows 7 so I can start saving some power on my home computer by using sleep or hibernate.

re: Windows 7 Energy Efficiency

Mantvydas — Tue, 06 Jan 2009 18:02:55 GMT

I think the main thing is to help Aero to be more power effective. And do some magic with return from hibernation, so that it's much faster than booting up.

Also, please make the interface of power management more understandable, especially what's behind the Advanced buttons... I hate the weird wording beside the UAC shield, it doesn't make sense.

re: Windows 7 Energy Efficiency

peterfnet — Tue, 06 Jan 2009 18:43:10 GMT

Though it has little to really do with Windows 7, I was surprised to see how much power the LCD takes. I figured the HDD with moving parts would take more power.

Just to throw myself into the ring, I do prefer sleep over hibernate. I just wish my Vista Laptop would go to sleep quicker. Always ends up pegging the HDD and I never know why.

Devices connected to system on Standby

praveen_sap — Tue, 06 Jan 2009 19:08:04 GMT

It's interesting to know how Stand-by is energy efficient & convenient way when system is idle, than switching off or hibernate.

I travel a lot and so I use data card on my laptop for internet access(not USB connected). Problem is, whenever I put the system in standby mode it kinda switches off my Data card device - So even when I turn my system on again, it doesn't start the device. So I had to manually boot the system to get that back online. but When I hibernate my system, I don't have this issue. And ofcourse, turn-off will work too.

I wish I could put it in standby - as it prepares back system fast compared to hibernating it.

I don't know if this is true for anyother devices but With growing number of people starting to use internet-datacards, you may need to look at it. Not big issue - but, yeh, there is one though.

Praveen

And btw, I can't wait for public beta to test my SAP access via windows 7 - or out of curiousity, I might just pray the Torrent-God to help me. ;-)

re: Windows 7 Energy Efficiency

frymaster — Tue, 06 Jan 2009 20:01:44 GMT

peterfnet: do you by chance have hybrid sleep on?

what that does is prepare your computer for hibernation, but go into sleep instead, thus making restoration fast. At some pre-arranged very low battery power remaining, it will then hibernate (ie turn off completely).

This combines the advantages of hibernate (no power used at all) and one of the advantages of sleep (fast turn on) with at least some of the disadvantages as well (suspend takes a while; still drains the battery; resume sometimes takes a while). It's a nice compromise state but whether or not it's useful depends how you use the laptop

re: Windows 7 Energy Efficiency

kapinga — Tue, 06 Jan 2009 20:06:36 GMT

What does the '1.8' mean for boot in the final chart you show? I don't see how a fully shutdown system can use more power than a hibernated system, let alone one in standby, so I'm confused how "boot" is higher on the "power" axis than either standby or hibernate?

Also, where are your units? ;)

sbowe: To remotely access a system in standby/hibernate (or even shutdown), you'll need some sort of wake-on-lan setup. It depends on your hardware configuration, but you probably can figure out something to make it work.

peterfnet: Vista (I think by default) has a hybrid sleep state that combines hibernate and sleep. It will write all of your RAM to hiberfile.sys when going to sleep, but also keep the RAM powered. If the computer loses power unexpectedly in this state, a reboot will bring you back from 'hibernate'. If hibernate isn't in your shutdown menu, this is probably why. Hybrid sleep can be disabled in the advanced power settings window.

re: Windows 7 Energy Efficiency

anonymuos — Tue, 06 Jan 2009 20:11:24 GMT

Yes, more power improvements are welcome. My HP Pavilion Entertainment laptop with the Windows 7 prebeta only runs 2 hours and 15 to 20 minutes max even when the display is set to the dimmest possible state. Watching Hollywood movies is now a reality but those 3 hour Bollywood movies without AC power is still a dream ;-) But sleep, hibernation and resume from both in Windows Vista and Windows 7 are noticeably faster on my laptop compared to XP.

I was going to point to the same Anandtech article. It would be interesting to know how Windows 7 and Windows XP fare in that benchmark.

For a future Windows version, it would make me very happy as a gamer if something like NVIDIA's HybridPower - discrete GPU turned off and switch to onboard Aero capable GPU - were available on all hardware platforms as an industry standard. Maybe Microsoft and Intel can develop such a standard.

re: Windows 7 Energy Efficiency

someone — Tue, 06 Jan 2009 20:17:44 GMT

Some feature requests:

1. Bring back "Add the user what to do every time when hardware power or sleep button is pressed with a touch enabled UI overlay.

2. With systems having more RAM it would be better to provide a progress bar while hibernating. By next build?

3. Is an any app similar to Gnome Power Manager's that provides history graphs?

4. Put the Task Manager power actions back like in XP. They were present there in case the system gets unstable and if the only thing we can start at that time is the Task Manager. Even Process Explorer has them. Again, this is a minor thing to add.

re: Windows 7 Energy Efficiency

Domenico — Tue, 06 Jan 2009 21:03:47 GMT

Great post!!

Thank's and Happy New Year :D

Go MIcrosoft go!!!!

PS . countdown for REAL Beta start NOW :-)

re: Windows 7 Energy Efficiency

CKurt — Tue, 06 Jan 2009 22:06:50 GMT

Hi,

The only reason why I use hibrinate instead of sleep mode is because the fan in my desktop pc keept rotating thus making alot of noise. The desktop is in my bedroom so I like it to be quite when i sleep.

Also, i love hibrenate!! But the boot process from in hibrenate is way slower than the regular boot process on my older desktop.

Nice post folks!! Beta tomorrow at CES ?

problems

tryon — Tue, 06 Jan 2009 22:26:06 GMT

So far on w7 hibernation didn't work for me but I used it all the time on vista for my laptop

Sometimes it wouldn't hibernate/shutdown but showed the "menu" asking if I really wanted to terminate the running applications and this menu never shutted itself automaticly which is the most anoying thing ever since I sometime wanna close my laptop and get it in my bag cause the new classes begin and I don't have the 2 minutes to wait for my laptop to evacuated the hot air and make sure it really powers off.

I want to be sure it will power off in less than 2 minutes in my backpack even if there were unresponsible program running or whatever.

re: Windows 7 Energy Efficiency

bluefisch200 — Wed, 07 Jan 2009 00:17:28 GMT

@Domenico

Link?

Still hope for statement from MS for 7. January 09

re: Windows 7 Energy Efficiency

locolorenzo — Wed, 07 Jan 2009 01:01:03 GMT

Yes it is efficient, Will definitly use in buisness when released.

I am a hoping for a few more improvements, but the Window 7 teams done a great job!

Why the announcement on the count-down...

The Windows 7 site is gone, the downloads for developers are gone...Blah-Blah-Blah

re: Windows 7 Energy Efficiency

Domenico — Wed, 07 Jan 2009 01:10:15 GMT

@bluefisch200

http://blogs.zdnet.com/microsoft/?p=1792

re: Windows 7 Energy Efficiency

wtroost — Wed, 07 Jan 2009 01:27:58 GMT

Good post, love the energy usage pie!

Agree with the "be sure it will power off in my backpack" suggestion... hehe

re: Windows 7 Energy Efficiency

manicmarc — Wed, 07 Jan 2009 01:29:33 GMT

Please drum it into OEMs that having a laptop drain nearly 10% battery when OFF is not acceptable.

My HP DV9000 will be at 92% if I do a full shutdown (at 100%) and then start it up a day later. If I take the battery out then it will only go down by about 2%.

I have contacted their support they say that's normal. Even log shows it not turning on or anything.

Anyway, that's just my case but I know it happens a lot.

Leaving it on standby is even worse. Yes, resuming in 2 seconds is great, but if that leaves you with just over 5 minutes of battery life left then you've not gained much.

Compare this to the Mac experience, where a MacBook left in sleep can last weeks, not days. Hibernate (aka Deep sleep) is only needed when it's left for months on end.

DPilcher: The maximum amount of RAM that could potentially be saved t disk needs to be reserved for hibernate. Otherwise, when the battery is low, but you happen to have lots of stuff open, Windows will not be able hibernate. How annoying would that be?

answers & comment

tryon — Wed, 07 Jan 2009 02:51:33 GMT

Helmore > Some betas of vista were public and private, but the private beta feedback were prioritize, the public beta is more to test it yourself.

On your power consumption concerns I think we have to account for the fact that more and more chipsets have integrated graphics so maybe the data doesn't differenciated the two.

Jalf> If you you sell 12 differents laptop configurations (or 20 I don't know) you can optimize the whole OS/drivers to run very efficiently,

But I do understand your point, there is room for amelioration on Microsoft part to take the increase of the battery life more seriously than it did before, especially since more and more classroom have wireless access. (and the classes can last 3h+) I look forward to my first week this semester to test it hands-on, but so far I haven't noticed much difference in battery life between vista<->seven.

one more observation: Why did you remove the "high performance" choice from the power icon in the system tray? Now I have to do 2-3 more clicks to get my computer to full power! (I do this because sometimes balanced mode takes too long to get my cpu up to speed when I start a game or simply need more responsive applications)

One last note on the remote-deskop connection from xp to seven, it works even if the w7 system just booted which didn't work for me on vista where I had to manually log-in on the vista machine the first time after it booted or woke up from sleep. Good work. (Maybe it wasn't suppose to be this way I don't know)

you seem to have brought many things people liked in XP back to life, but giving us what we already had is not really an innocation now is it? (It may sound depressing but it's the way I feel right now when thinking that the ultimate edition will cost 350+$ retail)

Keep up the good work and thx for listening/reading us, enthusiast, students, profesionnals, etc. it's much appreciated.

re: Windows 7 Energy Efficiency

tryon — Wed, 07 Jan 2009 06:54:44 GMT

misspelled innocation > innovation ... should really read my post again :)

oh and for everyone who want the latest info on the availability of the beta: http://www.microsoft.com/presspass/events/ces/default.mspx you can watch steve ballmer's keynote @ 6:30 p.m. PST, Jan. 7. (not related to the post directly but many people asked about the availability)

re: Windows 7 Energy Efficiency

arun.philip — Wed, 07 Jan 2009 13:17:48 GMT

On that laptop pie chart, any way of giving a breakup of how much goes towards the LCD elements and how much to the backlight (at different levels)?

re: Windows 7 Energy Efficiency

Ooh — Wed, 07 Jan 2009 16:33:22 GMT

Quite intelligent!!

What you did NOT mention on the comparison chart with respect to power consumption is that the 1.8W for boot are only consumed once while 1.5W for sleep are consumed PER HOUR.

That means that suspending the PC to sleep is better if I will need it again in the next 1 hour and 12 minutes. Otherwise it's better to turn it off, esp. when I'm out-of-office at night or (even more important) during weekends and vacation.

Let's take a simple example: If I let my PC sleep at night (for simplicity 12 hours @ 1.5W) it will consume 18Wh compared to the 1.8Wh the boot on the next day costs. That's 10x the power consumption on a usual work day!!!

re: Windows 7 Energy Efficiency

steven_sinofsky — Wed, 07 Jan 2009 17:33:27 GMT

@Ooh -- sorry we weren't clear. That was what was meant by the text in the blog "You can see that boot takes a significant amount of power so when considering whether to turn off your machine to save power or to put it into a low power state, think about how long your machine will be out of use." We just didn't do the math that you did, which is correct.

You also want to think about your own time and frequency of these events as well.

--Steven

re: Windows 7 Energy Efficiency

martinmine — Wed, 07 Jan 2009 21:42:07 GMT

It is great to see how much improovemt6s you guys have made, after every post heter at the E7, I get more excitet for the beta version every time I read a post!

When I look at the diagram of the time of boot time, hibernate, sleep and is on. I really think that you could reduce so the hibernate does not take so long time to use.

It wil be fun to se how the final product is going to be, and how the PC uses the power more intelligent than before.

Martin

re: Windows 7 Energy Efficiency

JComm — Wed, 07 Jan 2009 22:23:39 GMT

Windows needs more proactive CPU throttling as far as applications are concerned. There are many issues there.

A lot of poorly written apps (and this includes some very commonly used ones, such as certain browser plugins, instant messenger programs, media players...) use near-spin-locks on one or several threads, that is, a loop with a sleep(1) which wakes a thousand times per second.

Problem #1: CPU usage is unaccounted. Even if they're burning ~25 million cycles per second each, it shows up as 0% CPU usage in the task manager due to insufficient sampling granularity and and other problems.

Problem #2: CPU cache trashing is unaccounted. Cache trashing slows down the rest of applications as they have to re-read stuff from RAM. This isn't too troubling but it's worth keeping an eye into.

Problem #3: timeBeginPeriod() interactions. This is the worst one. By default, the timer interrupt comes every 10-16ms, limiting the damage of sleep(1) loops (they'll only wake at most 60-100 times per second). However, it only takes one application calling timeBeginPeriod(1) to raise the timer to 1000Hz, and now a lot of threads are waking up 1000 times per second. A lot of applications do this (media players, browser plugins...) so in a lot of cases the system's running at 1000Hz.

I suspect the 10% impact figure comes not from the increased tic rate, but from all these stupid spinlocking sleep(1) threads who suddenly run 10 times as often.

re: Windows 7 Energy Efficiency

Klimax — Wed, 07 Jan 2009 23:01:14 GMT

Could there be option to force low-power mode for CPU,regardless of utilization? (For old(er) games(ST Armada,Dark Reign,...) and majority of movies (videos from Youtube,Reuters,...,movies in DVD quality) it is not necessary to increase power of CPU,since it is still enough.

re: Windows 7 Energy Efficiency

Jalf — Wed, 07 Jan 2009 23:07:58 GMT

"If you you sell 12 differents laptop configurations (or 20 I don't know) you can optimize the whole OS/drivers to run very efficiently"

Apple uses the same OS for a large number of hardware configurations. It's the same OS used in their workstations, desktop PC's and laptops, in current, previous and upcoming models. OS X has pretty broad hardware support too. True, it may be less than Windows runs on, but a hell of a lot more than 12-20 configurations, and too many for them to realistically optimize the OS for each combination. It also assumes that Apple is able to control the drivers too, which seems doubtful.

But this is still missing the point. The point is simply that "such a big gap is unacceptable to many customers". A lot of people would think twice before buying a Windows laptop if someone told them that a Mac with the same hardware would last twice as long on the battery. Whatever the cause, and even if it is as simple as you claim, it's something Microsoft is going to have to deal with. Either by debunking the figures or by solving the problems that cripple battery life so much.

But saying "Yes, but that's because Apple is able to optimize their systems, and we aren't" is not going to fly. That might explain *why* the difference exist, but it's hardly going to make Windows-based laptops more competetive. The only way to do that is to make this difference in battery life go away, one way or another (of course, one valid way to do that is to demonstrate that it was just a fluke all along, and Anandtech were mistaken). But saying "nothing can be done about it" like you do isn't an answer.

clarification

tryon — Wed, 07 Jan 2009 23:48:22 GMT

Ooh > Thx for clarifying this and thx to steven (The only VP I've seen commenting on blogs so far ;)) for the confirmation.

That kind of informration should be more broadly diffuse to the IT pros/Devs (maybe an article in technet/msdn magazine?), because that's the kind of choice we should be able to help our "clients" with.

on power profiles

tryon — Thu, 08 Jan 2009 00:20:36 GMT

Klimax> I think that's what the "power saver" from the "power plan" section is for. I digged a little further and found that in the advance settings of that plan under "maximum processor state" is set to "100%" which shouldn't be the case as you pointed out.

For now the only way I have found to ALWAYS have minimal power user on the CPU level is to set it into your BIOS but that is up to the manufacturer itself to let you control it or not and we can all agree that rebooting your machine entirely each time isn't useful at all (especially when you hibernate/sleep).

Maybe there's something you could do about it.

re: Windows 7 Energy Efficiency

Behodar — Thu, 08 Jan 2009 06:09:37 GMT

A bit off-topic, but MSDN and Technet subscribers may be interested to know that the beta is now available from Subscriber Downloads :)

re: Windows 7 Energy Efficiency

locolorenzo — Thu, 08 Jan 2009 10:12:28 GMT

Thank-you all for the hard work ands the Connect Invitation, I am impressed with the Beta, I am now running Build 7000 Beta 1...Fast Install & the fastest boot time I can remember! The Logo SDK looks intresting, I will not be using the RTM version and now down to the brass tacks with Windows 7 Server and the networking environment...plus my Robotic Telescope likes Windows 7 , CCD Camera works and my data bases are running smoothly.

And to the Mac boys out there I can do this from a Laptop with 512mb of Ram and a 799mhz processor!

Sleep works very well for conservation of batteries, I post this from the feild.

Whoop Whoop Whoopie...back to looking for sucker holes in the night sky!!!!!

re: Windows 7 Energy Efficiency

Domenico — Thu, 08 Jan 2009 12:37:14 GMT

1 Key = 1 PC to activate Beta?

re: Windows 7 Energy Efficiency

Behodar — Thu, 08 Jan 2009 22:53:29 GMT

According to the EULA, it can be used on any number of computers so long as they are on the same premises.

beta keys

tryon — Thu, 08 Jan 2009 23:04:37 GMT

Domenico > If you refer to past beta for vista, one key can be used to activate many computer. Microoft wants you to test the OS on as many computer as you can. I don't see why that would change with windows 7.

re: Windows 7 Energy Efficiency

Domenico — Thu, 08 Jan 2009 23:43:00 GMT

@tryon

My friend have MSDN subscription and more PC.

for now the key of Windows 7 in MSDN Download is valid for 1 PC :(

I have 3 pc (with Vista Ultimate)

re: Windows 7 Energy Efficiency

Behodar — Fri, 09 Jan 2009 00:16:05 GMT

That's interesting. I haven't tried multiple computers yet but MSDN usually lets you request additional keys if you need them.

re: Windows 7 Energy Efficiency

TanjB — Fri, 09 Jan 2009 01:12:41 GMT

Screen displays may need to think about using more black or dark. Current LCD have backlight on uniformly but LCD with LED backlights in adaptive patterns will become feasible during Win7 lifetime (they already are common in TVs) and these can save power by not using LEDs in parts of the screen which are dark. Also OLED screens expend energy only where you need the light. So using tricks like darkening windows not in the foreground, or using black backgrounds, or screen savers with just a small design lit, these can save significant energy in technologies which are in the pipeline now.

re: Windows 7 Energy Efficiency

rapiz — Fri, 09 Jan 2009 16:04:19 GMT

Sorry but... Where I can download win7?

thanks

re: Windows 7 Energy Efficiency

LEARNTOCOUNT — Fri, 09 Jan 2009 17:34:15 GMT

Holy hell didnt any of you computer geeks realize that all of the power percentage on the lap top only added up to 90%.

re: Windows 7 Energy Efficiency

LEARNTOCOUNT — Fri, 09 Jan 2009 17:34:27 GMT

Holy hell didnt any of you computer geeks realize that all of the power percentage on the laptop only added up to 90%.

re: Windows 7 Energy Efficiency

locolorenzo — Sat, 10 Jan 2009 03:32:08 GMT

I rely on energy efficiency while I am in the feild, I use batteries and inverters to image and run astronomical instrumentation.

I am suprised at how much better my laptop runs on battery, I now get about 65 minutes as opposed to 35 minutes with Windows XP.

I am now using adaptive screen settings to experiment further with using my CCD camera.

Killing the batteries in your vehicle in the wilderness is not a lot of fun and I have discovered that the laptop is usually the cause of this.

I am so pleased that the development team has listened to even the more geeky users of microsoft products...can't wait for Product Key Issue next week, would like to submit some usage logs to prove the usefullness for scientific computing with the Windows 7 platform.

@Steven, could you include native *.fits

*.aips for windows...you would win over a few more converts from unix

Bad Pie Chart: Windows 7 Energy Efficiency

Jon Peltier — Sat, 10 Jan 2009 17:15:31 GMT

Pie charts are supposed to show the parts of a whole. In fact, that is what it is claimed they are good at. (And they're not really good at that; it's just that they are so ubiquitous, people mistake familiarity with effective information display.)

If you add up the totals of the wedges in the chart, you may find that this pie is really pie-light: the segments add up to 90%.

re: Windows 7 Energy Efficiency

Lockon — Sat, 10 Jan 2009 20:27:22 GMT

I have a problem with windows seven, not detect tow devices of the ethernet and audio I have an asrock 775 S61 with an intel (630)(661 fx sis) pentium 4 ht 3.0 ghz and the audio is a C media: cmi9739a/9761 @ sis 7012

re: Windows 7 Energy Efficiency

burgesjl — Sat, 17 Jan 2009 18:40:40 GMT

Simply put, all this talk of power efficiency and sleep modes is pointless. Sleep mode has never, ever, worked with any of the machines I've ever used - its totally unreliable, and its never been fixed. The problem lies in both a combination of dumb hardware and even dumber software, and those 2 things cannot be fixed in the legacy environment. I do not use Sleep mode, I refuse to take the risk that it won't come out of sleep mode. There are numerous components that fail this test. I'm using a brand-new Alienware with Core i7 and Vista Premium and that won't come back from Sleep. Its too big a risk to lose all your work. I use Shutdown or Hibernate because in effect, everything is saved to disk and when restarting, everything is reloaded and all devices are re-enabled from scratch, which Sleep does not do. Its the only reliable way to have the devices work.

re: Windows 7 Energy Efficiency

RikDederly — Thu, 26 Feb 2009 23:33:37 GMT

One of the interesting aspects of the power chart was the increase in power for boot. As the chart demonstrates, the power consumption is higher for boot than it is for hibernation. So, in essence, some users may be using a bit more power for shutdown/boot versus hibernation.

On another point, I would suspect these values could vary for different hardware components, including the power supply used in the system.

re: Windows 7 Energy Efficiency

Konstantinos — Tue, 10 Mar 2009 21:22:25 GMT

Can you add the following ?

- A way to turn the monitor off programmatically (notebooks have no screen power button - this could save lot of energy). Lets say, after clicking an option in the start menu a top-level dialog with a Cancel button and a countdown timer appears allowing you to leave the mouse at rest.

re: Windows 7 Energy Efficiency

Academic Writing — Thu, 18 Jun 2009 12:49:18 GMT

There are numerous components that fail this test. I'm using a brand-new Alienware with Core i7 and Vista Premium and that won't come back from Sleep. Its too big a risk to lose all your work. I use Shutdown or Hibernate because in effect, everything is saved to disk and when restarting, everything is reloaded and all devices are re-enabled from scratch, which Sleep does not do. Its the only reliable way to have the devices work.

re: Windows 7 Energy Efficiency

Dissertation Help — Thu, 18 Jun 2009 12:50:13 GMT

So using tricks like darkening windows not in the foreground, or using black backgrounds, or screen savers with just a small design lit, these can save significant energy in technologies which are in the pipeline now.

re: Windows 7 Energy Efficiency

Term Paper Help — Thu, 18 Jun 2009 12:52:26 GMT

Its too big a risk to lose all your work. I use Shutdown or Hibernate because in effect, everything is saved to disk and when restarting, everything is reloaded and all devices are re-enabled from scratch, which Sleep does not do. Its the only reliable way to have the devices work.

re: Windows 7 Energy Efficiency

Custom Research Paper — Thu, 18 Jun 2009 12:53:36 GMT

I've ever used - its totally unreliable, and its never been fixed. The problem lies in both a combination of dumb hardware and even dumber software, and those 2 things cannot be fixed in the legacy environment. I do not use Sleep mode, I refuse to take the risk that it won't come out of sleep mode.

re: Windows 7 Energy Efficiency

Essay Help — Thu, 18 Jun 2009 12:54:36 GMT

There are numerous components that fail this test. I'm using a brand-new Alienware with Core i7 and Vista Premium and that won't come back from Sleep.

What stops a PC sleeping

Phil Wilcock — Mon, 22 Jun 2009 19:52:04 GMT

just posted this - helpful if you have PCs that steadfastly refuse to go into sleep mode

cheers

Phil Wilcock (1E)

What stops a PC sleeping

Phil Wilcock — Tue, 23 Jun 2009 10:48:57 GMT

*sorry forgot the url*

just posted this - helpful if you have PCs that steadfastly refuse to go into sleep mode

http://www.1e.com/1EBlogs/post/2009/06/21/Why-wone28099t-my-PC-go-to-sleep.aspx

cheers

Phil Wilcock (1E)

Custom Dissertation

kellyblacl — Fri, 03 Jul 2009 15:18:22 GMT

Nice Article, i appreciate on great work, after clicking an option in the start menu a top-level dialog with a Cancel button and a countdown timer appears allowing you to leave the mouse at rest. It's only and only way to have work with device.

re: Windows 7 Energy Efficiency

Dissertation Writing Help — Fri, 03 Jul 2009 15:26:21 GMT

Fantastic post, great work plus struggle, this remarkable post is interesting and informative, I do not use Sleep mode, I refuse to take the risk that it won't come out of sleep mode, it's my personal one, Thanks

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Kelly Black

re: Windows 7 Energy Efficiency

Custom Writing | Custom Dissertation Services — Fri, 03 Jul 2009 15:37:46 GMT

Great tricks and excellent article to. I can still manually resume it, but I can leave the system idle for days, and it want go back to sleep. A reboot usually fixes it for a while. The monitor always goes blank on time, and it never wakes up on it's own. <a href="http://www.academic-writing.net">Research paper writing</a> is good topic in my college.

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re: Windows 7 Energy Efficiency

Custom Writing | Custom Dissertation Services — Fri, 03 Jul 2009 15:38:53 GMT

keep it up!

re: Windows 7 Energy Efficiency

Dissertation Topics — Fri, 03 Jul 2009 15:46:00 GMT

I like this informative post, i use shutdown or Hibernate because in effect, everything is saved to disk and when restarting, everything is reloaded and all devices are re-enabled from scratch.

thank you so much.

re: Windows 7 Energy Efficiency

Infotainer — Fri, 03 Jul 2009 23:16:33 GMT

How can you save engergy if you have (want) to work the whole day with the cpu on? If I don't need it I shut down an d go to bed;-) The post is of course helpfull anyway! Goog on you!

re: Windows 7 Energy Efficiency

UK dissertation help — Tue, 11 Aug 2009 10:07:43 GMT

Nice post, I can still manually resume it, but I can leave the system idle for days, and it want go back to sleep. A reboot usually fixes it for a while. The monitor always goes blank on time, and it never wakes up on it's own. This is fantastic article, keep it up

thanks

re: Windows 7 Energy Efficiency

zauberer — Wed, 19 Aug 2009 16:00:03 GMT

Interesting article, but I think too that the computer should be shut down if one knows, that it won't be need for the next hours. But despite everything one should think of energy efficiency like you do.

Greets david

re: Windows 7 Energy Efficiency

jennifer.park82 — Sat, 21 Nov 2009 20:50:04 GMT

Whenever i see the post like your's i feel that there are still helpful people who share information for the help of others, it must be helpful for other's. thanx and good job.

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