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Re: acer aspire 7720-6155 overheats and shuts off under...
Check to see if the fan is working, if not replace it.
If the fan is working and spinning freely, then clean the vents and remove any dust/lint.
You may need to remove the fan/heatsink off the CPU and clean off the old heatsink compound and replace it with fresh heatsink compound and reinstall the fan/heatsink.
When using the laptop, make sure it is on a firm flat surface and none of the vents are obstructed.
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When the CPU overheats it goes into thermal shutdown and will not boot up again until it has cooled down.
The heat sink may be clogged with dust and causes the CPU to overheat by reducing air circulation over the heatsink. If you are not using your laptop on a flat surface, it may beobstructing the cooling vents on the bottom of the laptop.
Your laptop fanmay be faulty and not spinning freely, in this case replace the fan. Check the fan and heat sink assembly and remove the dust, loosen the dust anduse a can of compressed air to clear away the dust.
A laptop fanassisted cooling pad may solve your problem
Games will cause more heat as they put your components under more stress. Make sure that you are not blocking any of the vents and also, check them for dust. Give them a vacuum if they are dusty. It sounds like there is not enough ventilation, which causes your computer to overheat and then to shut down.
First make sure the laptop is lint free, specially around the fan's area and on the coil.
You'll notice hot air coming out of your laptop from it.
Usually gets clogged up with accumulated dust.
Use a vacuum in both areas.
If it gets better, but still shuts down, then you need a heatsink cleaning, and a fresh heat release compound for the processor as well.
If the laptop shuts down by itself and deosn't boot up again after some time, then the problem could be an over heating problem. The CPU shuts down when it overheats (thermal shutdown) and it is usually caused by a faulty fan and or the fan and heat-sink is clogged with dust.
Check the fan and if it does not spin freely then replace the fan and or remove the dust from the fan and heat-sink assembly.
You either overloaded the processor or the available RAM. Also with these laptops and high end games...it is very easy to overheat them unless they are on a cooling pad with another external fan blowing cool air over them, without it they will shut down due to thermal overload....this is to keep them from melting something. Try checking with the support driver page for your laptop and see if there is a BIOS update that addresses the algorithym for fan speed, then pull the heat sink from the processor, clean everything up and apply a good thermal paste compound, then blow out all the airvents and make sure there are no restrictions.
Try to keep as much ventilation under the laptop as possible. You can pick up a can of power spray and blow out the unit yourself or have a pro. do it for you. Dust and lint play a deadly part in overheating with laptops. Walmart has Ventilation trays in which the laptop sits and is cooled by forced air from underneath.
Make sure the direction of air flow is the same as your laptop.
You dont want to push air into a output vent.
It could be overheating, either you need to replace the fan, or at least open it up and remove any dust (bunnies) that may have built up inside, if your fan is gummed up it won't spin which then causes computer to overheat.
need more info....does it replicate without the battery? If it does, then it may be that the processor is overheating and shutting down the computer. Try to run with just the power adaptor and see if it happens. If it doesn't, then its probably the battery....