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    Battery Power = Games run slooooow

    Discussion in 'Asus' started by Zlog, May 17, 2008.

  1. Zlog

    Zlog Notebook Deity

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    Hi all, I've owned my G2S for about 8 months now.

    Just upgraded my video driver to the 175.16 WHQL that laptopvideo2go just posted and noted the weirdest thing.

    Upon switching to battery power (unplugging the power cord) my games will instantly drop to ~10fps. As soon as i plug the power cord back in it's back to normal again.

    Now the obvious answer is it's the driver and I've yet to try rolling it back because I'm getting ~10fps higher in WoW and other games with these new drivers. I'm also assuming/hoping that maybe theres a setting added in with this new driver that I've as of yet been unable to find.

    I thought I saw something about this in the past but I couldn't find it through searching.

    Thanks in advance for any help! :)
     
  2. Lithus

    Lithus NBR Janitor

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    Unplugging the AC defaults you to powersaver mode.

    Given the horrid battery life of the Asus machines, there's no reason for you to be playing games on battery.
     
  3. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    The GPU is probably automatically downclocking on battery in order to reduce the power consumption. You may be able to change this in the GPU power mangement. However, don't complain should the computer stops after 40 minutes because the battery is drained.

    John
     
  4. Zlog

    Zlog Notebook Deity

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    I'm fully aware of the battery life (or lack there of). Like I said, i've had it for a while.

    The question i had was why is it suddenly throttling the GPU down and is there a setting to turn that off?

    I like to have full control over my computer. I want my Performance setting to be just that, regardless of my power cord being plugged in, regardless of how much or how little battery life i'll get :D

    Where exactly is the GPU power management located at? I've never come across it before in the nVidia driver, and don't see it in the adv. power settings.
     
  5. E.B.E.

    E.B.E. NBR Procrastinator

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    I assume you're using Vista. Click the battery icon in the system tray, then More Power Options. Change plan settings; select the powerplan that the computer uses on battery (I assume it's Battery Saving); Change Advance Power Settings.

    Then look for PCI Express, and set the Link State Power Management to OFF.

    Be aware that the battery saving profile will also cap the speed of the CPU. You can change the max CPU speed from the same page where the PCI Express setting is.
     
  6. Hai1242

    Hai1242 Notebook Geek

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    Hello, I recently installed XP onto my G1S with this guide:

    http://asusg1s.wikidot.com/installing-windows-xp

    Everything works perfect. I am using 174.93 nVidia drivers also.


    Whenever I have my power plugged in, I get awesome framerates and everything on high settings for team fortress 2. But, immediately when I unplug the power, the game stutters and it seems like something is being throttled down to make the graphics poor.

    I checked the power options under XP, and it has no options to change CPU settings for different power settings, etc. Does any one have any ideas about this problem? I Hear others have it too.

    Thank you.
     
  7. ElKid

    ElKid Notebook Evangelist

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    Yes, when I unplug my laptop (specs in sig) the same thing happens. I also fiddled with the power settings, to no avail. Not sure how it can be fixed, other then just plugging it back in :p
     
  8. E.B.E.

    E.B.E. NBR Procrastinator

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  9. Hai1242

    Hai1242 Notebook Geek

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    Just read your Tips and Tricks. It appears that the GPU was on battery saving mode using nVidia "PowerMizer".

    I will turn that off and see if it works. Thanks E.B.E.!
     
  10. E.B.E.

    E.B.E. NBR Procrastinator

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    I'm sure it'll work. You're welcome.
     
  11. Hai1242

    Hai1242 Notebook Geek

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    Hey E.B.E.,

    I finally got to test playing games on battery mode and it is still stuttering.

    I have windows XP and I turned off the nVidia "Powermizer" settings that makes the GPU use less power when on battery mode.

    But, the stuttering is still there. I don't know what else to do if you have any other suggestions. I think the CPU is being throttled down but I don't know how to fix it with XP. Vista had a lot of settings to change all this stuff.

    Thanks!
     
  12. E.B.E.

    E.B.E. NBR Procrastinator

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    For CPU, I suggest RMClock. See my Tips and Tricks on how to configure it.

    I suggest you don't turn off PowerMizer; that might revert to default settings which still throttle on battery. You should force the GPU on HighPerformance on battery, using PowerMizer.

    You should be aware that since I last wrote in this thread, I tried the Vista settings that, as far as I can tell, are the equivalent of the PowerMizer settings, and THEY DO NOT HAVE ANY EFFECT on how the GPU performance is throttled. See my W7S review, page 3, for details.

    I haven't suffered from this problem in XP. I never actually played games on battery, but I did use games to rundown the battery in battery tests, and it seemed they ran fine (not throttled).

    So there is the possibility that this may be related to later computers (BIOSes), GPUs, and drivers, rather than Vista versus XP. In which case you would suffer from the same problem in XP that I suffer from in Vista (ignoring PowerMizer settings).