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Old Aug 22, 2008, 02:51 AM   #1
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{0}Salamander{0}
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Default Laptop: Vista or XP for best battery life?

I have recently aquired my first ever laptop after having and building desktops for decades, I thought it was about time I gave a portable a go.

My question is, that I see it comes pre-loaded with Vista basic, but was wondering if I would get better battery life with XP?

I notice that there are some 78 processes running under Vista, as well as it being far more GUI intensive, I just wonder if that that guff is sucking more battery life than it would under XP?

Or is there no difference?

Are there any other tips to improve battery life (aside from reducing the screen backlight).

Cheers.
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Old Aug 22, 2008, 04:43 AM   #2
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Vista is better with battery life on an laptop because of the optimized battery features it has.
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Old Aug 22, 2008, 02:53 PM   #3
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Vista SP1
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Old Aug 22, 2008, 06:14 PM   #4
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Quote:
Originally Posted by badboy View Post
Vista is better with battery life on an laptop because of the optimized battery features it has.
QFT as long as the laptop supports Vista properly. A Dell Latitude D600 doesn't support SpeedStep with Vista, but a Dell Latitude D610 supports it without a problem.
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Old Aug 22, 2008, 08:54 PM   #5
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I've found them to be pretty close to even in battery life, but I highly recommend Vista for a laptop. The power management is much more reliable, and I noticed my laptop runs quite a bit cooler with Vista. That, and wireless is way easier in Vista.
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Old Aug 22, 2008, 10:34 PM   #6
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XP. No prefetch = moar battery
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Old Aug 23, 2008, 02:31 AM   #7
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Vista.
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Old Aug 23, 2008, 02:34 AM   #8
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Quote:
Originally Posted by DorXtar View Post
XP. No prefetch = moar battery
lulzwat? XP too has prefetch.

And there are countless tests proving Vista to be best as far as battery life is concerned.
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- Imagine a giant cock flying towards your mouth, and there's nothing you can do about it. And you're like "Oh man, I'm gonna have to suck this thing", and you brace yourself to suck this giant cock. But then, at the last moment, it changes trajectory and hits you in the eye. You think to yourself "Well, at least I got that out of the way", but then the giant cock rears back and stabs your eye again, and again, and again. Eventually, this giant cock is penetrating your gray matter, and you begin to lose control of your motor skills. That's when the giant cock slaps you across the cheek, causing you to fall out of your chair. Unable to move and at your most vulnerable, the giant cock finally lodges itself in your anus, where it rests comfortably for 4, maybe 5 hours. That's what using Mac OSX is like.
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Old Aug 23, 2008, 10:10 AM   #9
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Quote:
Originally Posted by DorXtar View Post
XP. No prefetch = moar battery
Do you even think before you respond to stuff or is mild retardation making that difficult?
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Old Aug 23, 2008, 02:08 PM   #10
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Quote:
Originally Posted by genci88 View Post
lulzwat? XP too has prefetch.

And there are countless tests proving Vista to be best as far as battery life is concerned.
XP doesn't have the super-retarded prefetch that uses the HDD all the time. If you have a flash-based disc, then maybe super-retardo prefetch won't waste that much more battery life.
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8) However, let this one fact not be escaping YOUR notice, beloved ones, that one day is with Jehovah as a thousand years and a thousand years as one day. 9) Jehovah is not slow respecting his promise, as some people consider slowness, but he is patient with YOU because he does not desire any to be destroyed but desires all to attain to repentance.
Like 12Bass says, critical thinking and the scientific method are probably the best tools we have to avoid it. (bias)

However, this method relies on repeatable, falsifiable hypotheses and theories. Only an extremely small spectrum of time and space can be rendered into these, or at least a good approximation of such.

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Old Aug 23, 2008, 02:28 PM   #11
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Quote:
Originally Posted by DorXtar View Post
XP doesn't have the super-retarded prefetch that uses the HDD all the time. If you have a flash-based disc, then maybe super-retardo prefetch won't waste that much more battery life.
Head on over to google and check out some of the mainstream tests that have been performed. XP vs. Vista for battery life was a close call with XP winning out until Vista SP1 was released.

Hence, why I responded Vista SP1 is better for longterm battery life.
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Old Aug 23, 2008, 03:15 PM   #12
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Quote:
Originally Posted by DorXtar View Post
XP doesn't have the super-retarded prefetch that uses the HDD all the time. If you have a flash-based disc, then maybe super-retardo prefetch won't waste that much more battery life.
Superfetch only beats up the hard drive for the first week of a new OS install or SP release. After that it doesn't thrash the drive anymore then regular prefetching in XP. Once that's done, then Vista kills XP for battery life. And if the notebook happens to be equiped with one of those Intel flash memory units for use with Readyboost, then Vista gets away with only a day or so of disk thrashing before stabilizing.

As an additional note though, I just reinstalled Vista last week and only had an hour of disk thrashing before it settled down. But that's on a desktop equiped with some pretty fast drives in a RAID 5 array...
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Old Aug 23, 2008, 04:00 PM   #13
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I think SP1 optimizes the indexing thrashing so it's not so power hungry or obvious.
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Old Aug 23, 2008, 08:16 PM   #14
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Quote:
Originally Posted by moshpit View Post
Superfetch only beats up the hard drive for the first week of a new OS install or SP release. After that it doesn't thrash the drive anymore then regular prefetching in XP. Once that's done, then Vista kills XP for battery life. And if the notebook happens to be equiped with one of those Intel flash memory units for use with Readyboost, then Vista gets away with only a day or so of disk thrashing before stabilizing.

As an additional note though, I just reinstalled Vista last week and only had an hour of disk thrashing before it settled down. But that's on a desktop equiped with some pretty fast drives in a RAID 5 array...
http://www.seagate.com/docs/pdf/data...entus_5400.pdf

Typical laptop HDD and the difference between idle and seek (load) is 1.2W, so the power draw is negligible. SSDs make the difference that much less.

What gives Vista the advantages are it's advanced power saving features for laptops.

http://en.wikipedia.org/wiki/Feature...wer_management

You'll also see at the bottom of that part in regards to what was added with SP1 for Vista.

Beginning with Windows Vista Service Pack 1, the operating system can turn off periodic VSync interrupt counting of CPU when the screen is not being refreshed from new graphics or mouse activity. This can result in significant energy savings.
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Old Aug 26, 2008, 05:33 PM   #15
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Is there any way of say stopping the HDD spinning (to save battery) if you are watching a DVD or watching a film off a USB stick?
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Old Aug 26, 2008, 06:14 PM   #16
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Is there any way of say stopping the HDD spinning (to save battery) if you are watching a DVD or watching a film off a USB stick?
A laptop HDD when idle uses a whopping 0.2W or so.
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Old Aug 26, 2008, 08:08 PM   #17
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Is there any way of say stopping the HDD spinning (to save battery) if you are watching a DVD or watching a film off a USB stick?
Start - Control Panel - Hardware and Sound - Power Options - Select Power Plan: Change Plan Options : Change Advanced Settings - expand Hard Disk - expand Turn Hard Disk off after : set to your desired time - 5mins, 20 mins etc.

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Old Aug 26, 2008, 09:49 PM   #18
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Start - Control Panel - Hardware and Sound - Power Options - Select Power Plan: Change Plan Options : Change Advanced Settings - expand Hard Disk - expand Turn Hard Disk off after : set to your desired time - 5mins, 20 mins etc.
Very good that you are aware how to change these settings. However, if a computer is actively in use (ie watching DVD or movie from USB drive) then the computer will not go into Standby (ie Sleep) and the hard drive cannot shut off if the system is not in Sleep.

I knew that and just tried to let him know that idle 2.5-inch HDDs don't use much power at all.
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Old Aug 29, 2008, 01:32 PM   #19
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My thinkpad, while typing notes in class, I can milk 3.5 hours out of the battery, running Vista Business x86.

T7300, 4GB, 7K200, 1440x900, Quadro NVS140M, 6cell battery.

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Old Sep 5, 2008, 11:04 PM   #20
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battery life is about the same on my e1705
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Old Sep 6, 2008, 04:43 AM   #21
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Very good that you are aware how to change these settings. However, if a computer is actively in use (ie watching DVD or movie from USB drive) then the computer will not go into Standby (ie Sleep) and the hard drive cannot shut off if the system is not in Sleep.

I knew that and just tried to let him know that idle 2.5-inch HDDs don't use much power at all.
say what
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Old Sep 9, 2008, 10:52 PM   #22
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say what
Try it. Play a DVD and see if your system drive shuts off at any point. Secondary drives will power off, sure. But your main system drive (especially in a laptop) will not.

I tried it on a Dell Latitude D610 and it wouldn't do it.
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Old Sep 10, 2008, 12:11 PM   #23
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Every benchmark I've read concerning battery life has shown Vista to be more of a hog than XP. In fact people were complaining about Vista's poor impact on battery life.
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Old Sep 10, 2008, 02:46 PM   #24
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Every benchmark I've read concerning battery life has shown Vista to be more of a hog than XP. In fact people were complaining about Vista's poor impact on battery life.
Quote:
Originally Posted by caveman-jim View Post
Head on over to google and check out some of the mainstream tests that have been performed. XP vs. Vista for battery life was a close call with XP winning out until Vista SP1 was released.
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Old Sep 13, 2008, 06:59 AM   #25
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if your concerned about constant hd activity, and it sucking all the power of out the battery, if u've got 2gb or more of ram just turn off the paging file, with that enabled the hd will pretty much never powerdown, at least thats my experiance, but a dvd drive watching a film sucks up a lot more power than the hd

but yes, i agree with everyone with common sense in this thread! vista sp1 is the way forward for laptops, you can always set it to the default power savings scheme, add's an hour + to my gf's core2 laptop
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