Note PC dysfunction

I happened to come across with the opportunity to inspect Notebook Personal Computer, Toshiba Dynabook AX/54C PAAX54CLR Satellite A200 Series PSAF0N-04101F, the user of which has been suffered from unexpectedly strange reaction, occasional difficulty to boot up, several trials had been required, sudden shut down without any notice, naturally the datum constructed taking so long time period had been lost, in spite of the way of use was not a hobby like playing but her important formal business.

Several trials were performed to revive the device, but in vain, because BIOS booting is also hesitating and suddenly freezes without any signs even while OS setting period, careful inspection proved the control of CPU fun does not activated adequately, so the body of device became in high temperature, probably over 80 degree, CPU could not be cooled enough leading to some thermal runaway, falling into infinite loop?

As a common sense, CPU fun control is the indispensable key to the correct operation of any computing system.
This kind of critical trouble on the device may eliminate the company's credit, Toshiba?

Because the efforts by the user cannot reach to the end except the specific repairing electric engineer preparing replacement parts in the factory, in spite of any failures might have been brought by the user.

There must be another reason that the customer support reaction of Toshiba is more kindly reacted comparing another company's?

Disassembling to see cooling fan directly, a very special heat exchanger construction was found just before the air intake port.
I supposed that the dysfunction on this thermal controller may be a cause of overheating.
High specification on CPU speed may need this kind of arrangement because of extraordinary heat while processing.