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extending battery life on 5165

post #1 of 13
Thread Starter 
So I get about 2 hrs on this thing right now, with pretty low brightness levels. What can I do to improve battery life?

Also, should I have waited for Ivy Bridge? When are the mobile cpus coming out?
post #2 of 13
There's a discussion floating around here about Ivy Bridge mobile. They're coming out April 8th, meaning by mid-late April they'll be in laptops. Ivy Bridge will use less power, and it seems like the quads are about 20% faster. If you can return it and don't mind waiting 3 months, definitely wait. If you need it now, nothing you can do about that. This is a big year for mobile (GPU dieshrink, and CPU die shrink).

Anyways to improve battery life, check the Optimus settings in the Nvidia Control panel. I'm assuming 2 hours doing basic tasks - internet etc. Also check the Power Management settings - the minimum CPU speed should be 5%, max should be maybe 70% (50% is a better choice). And disable the Windows Aero theme.
 
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post #3 of 13
Also make sure bios power savings features are enabled, and that you're setting the appropriate power scheme in windows (and verify that the power scheme is using the appropriate power-saving settings).

edit--I guess you could also disable hyperthreading in the bios too.
Edited by guyladouche - 2/6/12 at 8:55pm
    
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post #4 of 13
Thread Starter 
Quote:
Originally Posted by jrbroad77 View Post

There's a discussion floating around here about Ivy Bridge mobile. They're coming out April 8th, meaning by mid-late April they'll be in laptops. Ivy Bridge will use less power, and it seems like the quads are about 20% faster. If you can return it and don't mind waiting 3 months, definitely wait. If you need it now, nothing you can do about that. This is a big year for mobile (GPU dieshrink, and CPU die shrink).
Anyways to improve battery life, check the Optimus settings in the Nvidia Control panel. I'm assuming 2 hours doing basic tasks - internet etc. Also check the Power Management settings - the minimum CPU speed should be 5%, max should be maybe 70% (50% is a better choice). And disable the Windows Aero theme.

I can't find optimus settings in the nvidia control panel. Does this mean I need to install drivers for optimus (I think I have installed all the drivers that came on the disk that came with it).
Quote:
Originally Posted by guyladouche View Post

Also make sure bios power savings features are enabled, and that you're setting the appropriate power scheme in windows (and verify that the power scheme is using the appropriate power-saving settings).
edit--I guess you could also disable hyperthreading in the bios too.

How do I change bios settings?
post #5 of 13
Quote:
Originally Posted by perfectblade View Post

I can't find optimus settings in the nvidia control panel. Does this mean I need to install drivers for optimus (I think I have installed all the drivers that came on the disk that came with it).
How do I change bios settings?

Is the Nvidia control panel set to "Advanced" mode? Shoot me back a screenshot of the Nvidia control panel. Also check in Device Manager, you should have Intel and Nvidia display drivers. Hypothetically if your Intel and Nvidia drivers are installed, you could check in the BIOS to see if Optimus is enabled.

The Optimus panel should look like this (skip to about 00:15) http://www.youtube.com/watch?v=Zh4HCadTY_A

edit: To get into the BIOS, just hit F2 when you see the Sager splash screen, or just a second or 2 after powering it on.
Edited by jrbroad77 - 2/6/12 at 9:30pm
 
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post #6 of 13
Thread Starter 
Quote:
Originally Posted by jrbroad77 View Post

Is the Nvidia control panel set to "Advanced" mode? Shoot me back a screenshot of the Nvidia control panel. Also check in Device Manager, you should have Intel and Nvidia display drivers. Hypothetically if your Intel and Nvidia drivers are installed, you could check in the BIOS to see if Optimus is enabled.
The Optimus panel should look like this (skip to about 00:15) http://www.youtube.com/watch?v=Zh4HCadTY_A
edit: To get into the BIOS, just hit F2 when you see the Sager splash screen, or just a second or 2 after powering it on.

Yeah, my nvidia control panel looks like that. What settings should I change?
post #7 of 13
Quote:
Originally Posted by perfectblade View Post

Yeah, my nvidia control panel looks like that. What settings should I change?

I'd watch through the first couple minutes of that video. Anyways, the one main setting, switch to "Integrated", or "Auto-select". I'd rifle through all the settings, make sure your web browser isn't using the GPU etc.

Also note that if you have a game running in the background, it's pretty likely the Nvidia graphics are still on.

But also don't neglect the CPU power management settings- you have to go into the Advanced options of Power Manager.
 
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by jrbroad77 View Post

I'd watch through the first couple minutes of that video. Anyways, the one main setting, switch to "Integrated", or "Auto-select". I'd rifle through all the settings, make sure your web browser isn't using the GPU etc.
Also note that if you have a game running in the background, it's pretty likely the Nvidia graphics are still on.
But also don't neglect the CPU power management settings- you have to go into the Advanced options of Power Manager.

Cool thanks.

That sucks about ivy bridge. I need this laptop now, but I wish I could wait because I really want the 50% boost to battery life they're claiming.
post #9 of 13
Quote:
Originally Posted by perfectblade View Post

I can't find optimus settings in the nvidia control panel. Does this mean I need to install drivers for optimus (I think I have installed all the drivers that came on the disk that came with it).
How do I change bios settings?

Re. Optimus--does your laptop have both an nvidia video card AND intel's integrated HD video?

Also, to change the bios, you can enter the bios when you restart your laptop--usually you press the "del" key when prompted by the screen. It could also be the "F1" "F2" or "tab" key, depending on your particular computer--just take a look at the startup screen, it should prompt you for what key.
    
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post #10 of 13
Yes the 5165 has Optimus. You should be using nvidia's 285.62 driver as that is the lastest official driver that supports the mobile chips and optimus. http://www.geforce.com/Drivers/Results/39066
Edited by Wildcard36qs - 2/7/12 at 11:43am
   
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