Overheating issues Fan needs cleaning

Disassemble the laptop and remove the heatsink.
Remove all the dried up heatsink goo that's on the heatsink and processor.
Squeeze a small amount of QuickSilver heatsink compound onto the middle of the processor top.
Place the heatsink on the processor and move it in a couple small circles before locking the processor heatsink back in place.
Clean the air vents and cooling fins well while the unit is open.
This should fix any overheating issues you are having (assuming the fan is OK)
If the fan isn't running, replace it.

Before disassembling your laptop I would suggest trying to blow dust out through the vents and getting a cooling pad.

Sounds like the fan could be pulling the cpu down or it's overheating. The cpu fins may need cleaning and will stop overworking the fan and start cooling as it's suppose to.The fan itself could be dying.

Check the fan in the vents if they are still working, if yes, clean them, you can do it with a can of compressed air.

If the fans are not spinning anymore, you'll have to replace them.

This could be a sign that your laptop is overheating. If you touch the laptop while it is running & you find it too hot, make sure that the fan is running properly & that the air ways are not blocked.
You can blow compressed air into the cooling vents of the fan. If you notice clouds of dust coming out, then it might be a good idea to disassemble the laptop, clean the fan & air ways, & reassemble it back. If the fan has failed & is no longer running, it might need to be replaced

This could be a sign that your laptop is overheating. If you touch the laptop while it is running & you find it too hot, make sure that the fan is running properly & that the air ways are not blocked.
You can blow compressed air into the cooling vents of the fan. If you notice clouds of dust coming out, then it might be a good idea to disassemble the laptop, clean the fan & air ways, & reassemble it back. If the fan has failed & is no longer running, it might need to be replaced.

This could be a sign that your laptop is overheating. If you touch the laptop while it is running & you find it too hot, make sure that the fan is running properly & that the air ways are not blocked.
You can blow compressed air into the cooling vents of the fan. If you notice clouds of dust coming out, then it might be a good idea to disassemble the laptop, clean the fan & air ways, & reassemble it back. If the fan has failed & is no longer running, it might need to be replaced.

If none of this solves the problem, or is not the case, then you might have a bad motherboard.

If you touch the laptop while it is running & you find it too hot, make sure that the fan is running properly & that the air ways are not blocked.
You can blow compressed air into the cooling vents of the fan. If you notice clouds of dust coming out, then it might be a good idea to disassemble the laptop, clean the fan & air ways, & reassemble it back. If the fan has failed & is no longer running, it might need to be replaced.

The problem with the laptop is that the Main board fan needs to be clean. It could have accumulated a lot of dust. Try cleaning the fan and the laptop would be faster than before and seize shutting down.

Before that I would advise you to update the BIOS which will be available in the manufacturer's website. This could also resolve the issue.
Fan cleaning must be done in such a way that the laptop must be disassembled and clean the dust in the fan.
Assemble the parts once again and the laptop would be as good as new.

If you fear disassembling the laptop you can contact the manufacturer tech support to have the fan cleaned.

Im assuming its a C64, these notebooks have overheating issues.

1. make sure the fan has room to breathe, and is clean of dust.
2 Dell Inspiron/Latitude/Precisiion fan control utility will help cool your processor ... http://www.diefer.de/i8kfan/index.html