today I found out that somehow I had clocked my processor to just 1.3ghz. I googled that I have to install toshiba value added package. After successful installation my processor started working normally (max 2.8ghz).

Unfortunately it has caused massive overheating of my notebook. While I was downloading bios update(and surfing normal websites) temperature went up to 83C! I'm just not doing anything it's going really high..(btw. I'm using cooling pad).

I found out that if I update bios(current version 1.5) it might solve/help(maybe) this problem. I downloaded both 1.7, 2.0 versions.

Version 1.7:
when I run it, it just throw an error:

Phoenix WinPhlash64
Failed to retrieve system BIOS information.
BCPSYS block signature was not found.
Error code: -100

Couldn't find any solution for this..

Version 2.0
There is an error occured, please check below items.
BIOS version above 200. (I've got 1.5)
Battery capacity more than 10% (tested it with 8%)
AC is attached. (it wasn't attached)

Huh? I'm totally out. Computer is unworkable if I don't fix that overheating problem.(bios update)

Thanks for any help.