Upgraded to Win7 Sony Vaio Running Nuclear HOT!!!

Hello!

My Notebook is a Sony Vaio VGN-AR790U/B which shipped with Vista 32-bit. Recently I upgraded it with a clean install of windows 7 Professional 64-bit. Using various drivers, I’ve been able to get nearly everything working.

My problem is that ever since installing Win7, my notebook runs VERY hot, as in far too hot to sit on my lap and even worse is the fact that the wrist pad area gets too hot to even type for more than a few minutes at a time. The fan seems to be operating but at a very slow speed which can’t be heard but it is always on. With Vista the same fan would go on and off and when it was on at full blast it was pretty loud.

I have not made any changes to my Bios and upon entering the Bios; I can’t see any options to make any type of changes to anything other than the boot order and password options. I really don’t want to go back to Vista but the heat problem is too much to live with. Any suggestions would be very much appreciated. BTW’ even though the system runs very hot, it has never shutdown even after running it for 48 hours at a time more than once now.

Ash

BTW’ even though the system runs very hot, it has never shutdown even after running it for 48 hours at a time more than once now.

I don't think you should keep it on for over 48 hours..

As you did a clean install the original drivers for the fan control were removed

First place to check is the Sony support website - looks like you need either a win7 system driver or Bios update.

If there is not a specific win7 driver try to install the Vista driver, this should work fine with win7 until a specific driver is available.

Also make sure that you get the correct 64bit driver

The fan should be controlled by the motherboard or general system drivers rather than a specific named driver


Think this may be the one ....

http://esupport.sony.com/US/perl/swu...=3320&os_id=30

Full driver set is here ...

http://esupport.sony.com/US/perl/swu...0UB#div_pos_66

Also you could see if the cool n' quiet features got messed with? The bios can control fan speeds and they usually have temp options in witch to asses what it needs to do. If you haven't ever changed the factory defaults that the bios started you can always muck around a bit. I know a lot of people are afraid of the bios, but as long as you don't mess with clock speeds or anything you should be just fine. Also a lot of heat gets generated by bad batteries charging.... In fact they can cause a lot of the heat, especially if it gets overcharged... Which brings up another topic, how windows is detecting the battery and charging it. Just another idea.