Lower Clocks due to stealth mode?

hey guys.. i heard the clocks lower significantly when running off battery power.. i read somewhere that changing the settings to high performance and making the system cooling active and such would avoid lagging issues on battery. I have done all this yet my clocks are still really low.. around 200mhz core clock on my GPU and games are horrible! Anyone have any ideas to stop the laptop from downclocking the GPU so much? Also is it software controlled or hardware controlled? I want to be able to play some video games while on the go for maybe like 10 minutes at a time. Any Solutions to this? I have an alienware M14x by the way amazing laptop.. but yea.. small issue

 

No, you won't be able as the battery won't provide you with the same power as a charger will.
IDK at how much the M14x battery is rated at but still, there is your answer.

 

not quite true, unlike psu's (measured in watts) batteries are rated in Watt hours.
the m14x is rated at 64Wh right?
this means it can supply 64 watts over 1 hour before going flat, or 128watts for half an hour or 256 watts for 15minutes... get the picture (do not take this as gospel, you know that hardware manufacturers like to inflate numbers, there are also other things to consider like battery wear and internal resistance etc...). a psu is designed for a known maximum load, exceed this limit and bad things happen. batteries rated at watt hours have a safety factor of at least 1:10, this means unless you're powering something over 640watts.... chances are you won't need to worry... and if your laptop can pull more than 640 wattts..... ummm.... screenshot or it didn't happen

use overclocking tools for your gpu and throttlestop for your cpu (i assume throttlestop works for the m14x). you can get the same performance on battery as you would with ac.
however your battery life will be around 15-30 minutes.

 

So I guess overclocking tools is the only way? Guessing stealth mode is hardware controlled then??

 

It is a BIOS control to keep your laptop from abruptly dying from the dramatic power drain on the battery.

Some people seem to have had some decent luck overclocking while on battery when running the original firmware. The newer firmware really forces the 200 Mhz clock IIRC.

 

This is a known issue on the m14x, and to some extent on every laptop with a discrete GPU. Initially you were able to set it to max performance and get full clock rates on battery, but under load it would draw more power than the battery could provide in a burst and it would shutdown with the battery in safe mode. A BIOS update removed this option and it now clocks the GPU at 200 MHz on battery to prevent it from overdrawing. I've read that some people have been able to get that up to 450 or 475 MHz via overclocking utilities though. Good luck.

 

sounds interesting i really just need to for oocasical gaming on battery and for a bit of a performance boost for maybe like 15 min :S

 

also note that whle you can effectively double wats from a batterie if you do it in half the time

most cells that compose these batterie are no good for high current aplications and thier wear level would sky rocket with a such usage