Sager NP8660 (m860tu) low fps on battery

Just got the new m860tu and it plays all the games excellantly on mains power, but as soon as I pull the power lead out of the notebook, and run it on battery power the laptops performance instantly becomes about a third of what it was. I assumed this was to do with the vista power settings, however I've set my vista power plan to high performance and changed cpu power on battery to 100% and turned pci-e link off but there is no improvement. Does anyone else have any insight into why its so slow on the battery?

Thanks for the help

 

Something else is throttling the system when its on battery power; have you checked to see if the GPU has any throttling mechanisms tied to power supply?

 

PowerMizer, a feature to conserve battery life on NVidia cards. Probably comes on. There is a way to disable it, but it involves going through the registry and sacrificing battery life. I can't remember the exact instructions, search this fourm or if someone could kindly repost them in this topic.

 

Deathwinger do you not experience said problems with your edge?

 

Let's clear something out...
That's no problem. That's what ALL the laptops (or pretty much all) do. When you run them unplugged, the GPU will be downclocked and will give you less performance.

This can be tweaked and you can get around this, but as Deathwinger mentioned, it involves you going into registry and adding some lines there. Or try and google for ways to disable powermizer in the Nvidia GPU.

Doing this will result in a drastic drain of your battery's life.
Words of the wise... a laptop running on batteries is not made for hardcore gaming. Want to game... plug it into the wall.

 

you cannot really game comfortably on battery... performance and batterylife.

the low-level programming in the system has most of the powerful components throttled down... to conserve battery life.

so just plug into AC if you want to game.

 

Yes, there is a notible decrease. But the ratio of time I time i spend gaming whilst on battery is not high enough for me to justify taking off PowerMizer. If anything, try decreasing the resolution and the effects of the game by a slight amount (medium instead of high) when on battery and you should be able to game at an acceptable level.