First check if this is a serious problem or a minor one, basiclaly if upon startup your heat goes out of control or not, THis can be done by accessing the BIOS menu, by pressing delete upon startup
once you enter BIOS, DO NOT TOUCH ANYTHING THAT IS NOT SPECIFIED, as any changes made to this, may in fact worsen your computer
In Bios go to Power
Under power go to hardware monitor..
under that check your CPU and motherboard temperature..it should be htere...
Also if it is listed, Check the Target CPU temperature, this is hte temp that your CPU will start degrading at
Do this upon first startup and even after reading this reply, To see if its a serious problem or not
it could easily be a false alarm and just be a lose wire or something that has nothing to do with it, Just some suggestions
You may in fact have to crack it open if its a serious issue, To see what's up,
I perosnally would crack it open just to check if anythings out of the ordinary , But that's just my way of doing it
get back to me on the Temperature listing though
to ensure nothing is changed in bios accidentally upon finishing what I have siad, PRess esc and it should come up with a box saying Exit without saving changes? click yes