Laptop Shutdowns (like unplugged the power supply)

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aizattt

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May 20, 2014
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hello tomshardware.
i have a problem with my laptop.
Whenever I'm playing games on my laptop without battery and using ac charger adapter as my power supply, the laptop turn off (like the power supply being unplugged) after 20~30 minutes ..
I just bought this laptop 1 month ago..
I'm already contacting my manufacturer and as solution they changed my motherboard but this problem still haunting me after 2 days later..
but when im playing games with battery inserted,this problem do not appear..
someone please help me thank you.

DISPLAY SIZE & RESOLUTION=14.0 inch LED Backlit Display with Truelife and HD resolution (1366 x 768)
PROCESSOR=4th Generation Intel® Core™ i5-4200U processor (3M Cache, 1.6 GHz, GT740M 2GB)
HARDDISK CAPACITY=500GB 5400RPM
MEMORY (RAM)=4GB 1 DIMM (1X4GB) DDR3L 1600Mhz
GRAPHIC CARD=NVIDIA® GeForce® GT 740M 2GB DDR3

Windows 8.1 Single Language, English (64bit)
 
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Ninjawithagun

Ninjawithagun

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Aug 28, 2007
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There is nothing wrong with your laptop. Your laptop powers off with just using an AC adapter, because there is an interruption in your AC power from the wall outlet. Having the battery installed provides a power reserve buffer whenever there is an interruption in the AC power. I have an Alienware 18 gaming laptop and it will do the exact same thing if I take out the battery and just run it on AC power from the wall outlet. The second there is a drop or spike in power, the laptop will shutdown immediately.

Another potential cause is that a 3rd party software tool or the motherboard BIOS itself is running a hardware diagnostic and when the battery is not detected, the laptop is shutdown.
 
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aizattt

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May 20, 2014
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hello mr. ninjawithagun,
thank you for your pervious answer..
so i need to change my ac adapter and the problem solves?
 
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Ninjawithagun

Ninjawithagun

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The problem is most likely due to either a bad battery or bad AC adapter. The only way to find out is to replace one or both.
 
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