I'm struggling with this handset which turns off as the title, sometimes after 10 minutes, 2 hours, or even after 4 hours.
Inventec Teton2 scheme.
I changed the ram, cleaning fan, install the operating system, update bios ..
Since this model has the capacitor Tokin (TOKIN OE128) under the CPU him I thought there was the culprit and I did substitution with 4 capacitors taken from a disused motherboard (333 uf 2.5v), it behaves the same way and the situation has not changed.
The capacitor in question is marked with the initials C21 to page 16 of the scheme.
It has the dedicated video card nvidia.
Without the video card behaves the same way, cioò shuts down suddenly and obviously black screen.
Has anyone had a similar case, suggestions

thanks

Hi, teton2 is quite large motherboard, and NorthBridge located in the middle. So soldering problem is common for this model. Try to move around laptop while it is powered on and in use, if it shuts down, probably it is the problem with NorthBridge soldering.