Sliding lever?

This kind of black box sometime recovers it's performance after reassembling with cleaning, so I had some a sense of anticipation, but in vain, worse result was obtained.

CPU fan could be acquired it's original performance, it was successful to the point of critical problem was removed, but it still in even stubborn, never boots up this time.

It's impossible to get to BIOS stage leading to no way to select boot device, flash memory on the mother board must be destroyed?

Basically the note book PC is not favor because the designing of filling the important parts in narrow and thin space is physically impossible if the thermal problem were not cleared.
The higher specification the note PC becomes, the more dangerous zone it comes across without any arguments.

I am going to check on this kind of problem in Web site today.