Zenbook Prime UX31A Wattage issue while on Battery only.

***SOLVED***

After searching the internet for a couple of days my buddy finds the answer in a couple of minutes. The first post in this thread says it all. Simply download Throttlestop, disable BD PROCHOT and there's no more throttling when running on battery power. There's actually a pretty good explanation of the issue in that thread as well, if anyone is interested.

Hope this helps someone...

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Just purchased my first ultrabook, UX31A. Apart from already having an issue with the battery % being halved in the first day I have another issue that i'm trying to figure out. While on battery power, playing 3d games and running hwmonitor and GPU-Z in the background the wattage doesn't stay consistent. I have an image that shows wattage increasing and decreasing which leads to smooth gameplay and lag respectively while in game. This only happens on battery power.

I'm wondering if any of you have the same issue and if i'm missing a driver or something. Or maybe the battery is just doa and not able to push full wattage to the laptop.

If you need any more info on the problem or if i failed to explain it in a coherent manner just ask and i'll respond asap. Thanks.

Here's the image: http://gpuz.techpowerup.com/12/12/25/aft.png
Gpu core clock and power (watts) graphs both look like mountains whereas they should be consistent.

 

Gaming on battery is never a good idea. Some power profiles purposefully throttle components on battery like the CPU and GPU to give longer battery life. It is also possible that your battery can't deliver enough power to use the components fully. If you want to play demanding games, plug it, that's the best advice we can give you.

 

Thanks for the response. Throttling makes sense but is it supposed to happen like it is? I have fiddled with the power profiles and put everything on high performance and there's still some sporadic throttling. If it was consistently low wattage I would understand but the watt usage cycles from 16watts for 5 seconds and drops to 6watts for 5 seconds, returning to 30fps, while running the same benchmark. Weird...

 

The sagging and spiking sounds a little too sporadic, but if you plug it in with or without the battery inserted, and the problem goes away, then it's probably as tijo said. You can try calibrating the battery to help assess whether it's faulty or not, too.