acer aspire randomy turns off

[maxwonga]

My acer aspire 7740 randomly switches off, i have checked similer problems on this forum but no luck, it may stay on 40 mins but mostly 5 mins or less, when works fine
fan works ok rseated cpu thermal paste charger works battery ok have swapped hard drives removed dust.... any help appreciated

thanks sean

 

[webworkings]

Have you kept an eye on the temps?

 

[maxwonga]

Have you kept an eye on the temps?

yes temps seem ok, strange thing it can be between 5 mins up to 40 mins

 

[webworkings]

Is this happening on battery power or charger power? (or both)

 

[maxwonga]

Is this happening on battery power or charger power? (or both)

it happens both battery and power

thanks for reply

 

[webworkings]

Hmm, have you done good deep scans for viruses and other malicious files? If not I would.

If that doesn't do it, I would be leaning towards the motherboard going bad.

Anyone else have any suggestions?

 

[maxwonga]

yeah full kaspersky scan and malwarebytes , checked ram seated properly....