Hi Diego, the local email support isn't a technical support channel
.. I will need make a trip to the service centre again to ask this question.. will it void the warranty.
When I got the notebook, the cache is working fine.. even after I upgrade to WIn8Pro. That is with the hibernation partition. From pervious experience with the service centre, they state they are responsible to put it back to factory default, I doubt they will agree to the suggestion above.
The problem now is, the engineer said it is working fine as it is now.. it is like that.
So far there is no suggestion from Toshiba.com forum too (like the local Toshiba email support)
Guess I've to figure myself.. and void the warranty. Or another trip down and spend hours there to convince them it is not.