Dell Inspiron 15 Laptop Overheat Problem Fixed BIOS Update, Upgrade BIOS FRom A13 To A14 To Fix Overheat Dell 15

My major problem was that my system got overheated if I work with it for say more than 1 hour. I also have a old Dell Inspiron 6000 laptop which is about 5 years old but still works fine for about 2 hours without any overheat problem.
The customer support representative asked me to permit him to share my laptop by connecting via citrix client. He then logged onto support.dell.com and he downloaded recent BIOS version.
I've A13 BIOS version in my laptop with my default factory settings. A14 is the recent BIOS update which is found to fix overheat problem.
He run the executable and rebooted the system. This fixed my overheat problem.