What could be the problem, laptop shutting down under load?

Question

Do it yourself

Less than six months ago, the HP dv6212er laptop began to randomly turn off under load, especially when playing games (minimum configurations). I decided to clean it and replace the thermal paste. But soon the problem returned. I decided to take it apart again and change the thermal paste to a newer one. But it didn't fix the problem. The cooler is working properly.
Notebook Configuration:
Intel Core i5 430M @ 2.27GHz
4.00GB Dual Channel DDR3 @
532MHz 1024MBNVIDIA GeForce GT 230M
Windows 7x 64
What is the problem and what can be done about it?

Answer 1

Look at the temperature sensors (there are a lot of utilities). Either this is overheating, or a problem with the hardware (most likely due to overheating of discrete graphics). In any case, if you have little experience in this, then it is better to take it to a service center. You can easily kill a laptop (partially or completely).

Answer 2

Have you reinstalled venda?
Is the battery okay?
Is the power supply original?
What devices are connected to the laptop?

Answer 3

Why do you have such a slow RAM?

Answer 4

Check for viruses, look at browser extensions (if unknown ones have appeared), try turning off the Internet when the load on the GPU / CPU increases, if the load drops, there is a suspicion of a virus like BitCoin Miner , more here:
habrahabr.ru/post/123244
I myself encountered similar, sat in steam.exe (it was difficult to find, but there are programs like a resource monitor).
Because judging by the description, the temperature rises precisely because of the process.

Answer 5

Capacitors (if there are electrolytes) on the motherboard could swell, as a result of power glitches.