Satellite A300 spontaneously turned off

Hi people.

Hoping someone can confirm what I am already assuming that or possibly help me with something that I have not yet tried.
My daughters a300 is off spontaneously without reason apparent. Sometimes less than a minute or so but above all a few seconds now.

Weeks began by cutting only of now & again but it has far more common constantly where it stops almost immediately in most cases. Sometimes I can go as far as the Windows logon or a live cd/usb charge but 9 times out 10 now it is turned off during, before or after the post.
Before this stop so quickly these days that I assumed it was a Windows problem, but this is obviously not the case, I know now.

I had the machine open and cleaned that little dust he was. All fans work fine and I have aleardy swapped virtually all bars of the motherboard & CPU.
I tried to boot from the live Linux CD & USB without any connected main player and I also tried without the battery connected and I ran memtest on his memory in another corresponding A300, we have in addition to control his drive to find errors etc. They are all very good.

Don't really want to spend more than £100 for a new Board of Directors, if if there's a chance again, he might still be something else that I neglected to try.

Thanks in advance.

Hello

Usually the laptop automatically stops due to a higher temperature.
If the temperature rises to a critical level, the laptop stops to prevent material damage.
This usually happens because that the cooling fans don't properly twist because of the dust.

But it seems that you have already cleaned the cooling modules and fans, so in this case the higher temperature may not be the problem. So it seems that there could be other reasons for this

Unfortunately, for me it s is not possible to say what role could be affected in the worst case, it could be a motherboard problem, but it could also be a RAM problem.

Control programs memory are ok, but the RAM modules could still work even if the memory test would detect all problems. So it of certainly worth it to use a new RAM.

Tags: Toshiba

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