XPS1645 and Gaming problems?

I'm experiencing throttling/lagging issues when my xps is unplugged from the power (playing Starcraft 2). With the power plugged, everything runs fine, but why is it that it starts to throttle becomes choppy when it is unplugged?

Any advice, ideas, help would greatly be appreciated

 

Try looking in the power settings, check you're on high performance.
If you are then check that the CPU max and minimums are both 100%. You shouldn't get any lag with that.
Hope this helps

 

Sounds like you dont have the 130W adapter yet

 

It's a problem on battery power, so nothing to do with the adapters.

 

Oh ye, i see. With all the problems being the other way i around i just figured..

 

This is probably your problem. I'd hazard a guess that what's happening is the laptop is automatically switching to Power Saving power settings when you unplug the AC adapter.

 

Simple fix, guy on battery...
Go to Catalyst Control Center, go into Powerplay settings, and set it to high performance on battery.
Although, I personally recommend not gaming on battery. With the huge power draw, you will see lots of battery wear.

 

Setting CPU/GPU settings (ATI PowerPlay is important) to maximum performance will help to a certain extent.

However, you probably can't achieve the same performance on battery. In my case, my battery can only draw around 90-100 watts (I think only 90 for a continuous period). When plugged in, I have the 130 watt adapter. Most games probably would like to draw more watts than your battery will allow (at least with the ATI 4670).

Edit: if you want to test this, start up a game on battery with your screen on maximum brightness. Make sure you did all the Maximum Performance steps first. Monitor the fps (ctrl alt f in Starcraft 2). Then set the brightness to the lowest, and see if there was an increase in fps.

 

Youre playing a game and wanting more resources when the computer is set to lower resource use to conserve battery power. Set your unplugged plan to high performance, but remember that your battery life will go down.

 

This happened to me as well, and no power settings fixed it.

Unclewebb told me to run on adapter xD

 

You have to adjust the power settings in windows AND catalyst control center. Without both being overridden for performance your system will not run at 100% on battery and will still try and conserve battery power.

I never did understand the gaming on battery idea.

 

I did every power setting possible, nothing fixed it. I throttle off of AC adapter and that's pretty much that. I took unclewebb's advice and just stick to my damn adapter

 

Your not throttling off of battery. No battery can provide enough power for the system to run at full strength.