Problem of frequently shutdown unexpectedly for m6810 laptop ........When fan starts after some temp. goes up to 53 C. it causes....

When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.

Unexpected shutdowns could be an overheating problem.
When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a can of compressed air to do this.

Most unexpected shutdowns are from thermal signals from the processor or from a memory module failure. Get some cans of compressed air from an office supply store and with all power disconnected and the battery removed, use small bursts of air and blow out all the ventilation frills on the laptop, including all access doors and cd/dvd tray or slot. If it continues after the cleanout, try powering down and removing one memory module and run the laptop. If it dies not shut down, swap out the modules and try again. if it fails, then you know what the problem is.

If the Computer restarts randomly, then the issue might be due to any damaged Operating System Files.
But, if the Computer shuts down randomly, it is due to the Processor.
All the Processors will be designed in such a way that, if there is any overheating issues, the Computer will shut down randomly.
The overheating might occur due to the malfunction of the Cooling Fan in the Computer.
As this is a overheating issue, it would be better to get the Unit examined at the Service Center.
Replacing the Cooling Fan in the Computer should resolve the issue.

The main reason for laptop sudden shutdown is because your laptop is overheating, the fan must be clogged with dust bunnies, you should blow in your fan vent, and maybe open it up through the bottom and clean your fan out, because thats the main cause of that..but here is a program you can use to check your fan temperature http://www.alcpu.com/CoreTemp/

When systems power off suddenly, always suspect - the power first. I would then look at heat and physical connections next as culprits. Memory errors almost always show up as blue screens.
I say try a new power supply and see what it does. Its not a lot of money either way.

Run CPUID Hardware Monitor and watch your temps. You will have to turn logging on or you will lose the data in a crash.
Make sure your CPU heatsink is still connected properly. Things have a way of working loose.

check that your fan is not defective and drawing to much current, check the fan driver transistors base is not shorted to ground

your graphix card may be overheating, get a better graphix card.

Hello

Thank you for using FixYa.

Have you cleaned out the airvents and fan area. these build up with dust and if the unit gets too hot it will shut down unexpected

Also always use on a hard surface so the airvents are kept clear

thanks
Richard

Here you go.

http://emachines.fizi.ca/index.php/LCD_Disassembly

With pictures even!