jupiter - Ubuntu 12.10 overheats and fan runs high

I have the problem with my fan constantly and hot CPU. I have a Dell Inspirion 15r special edition. I followed the instructions to load Jupiter to solve this but when I enter:

sudo add-apt-repository ppa:webup8team/jupiter

I get the following error:

Cannot access PPA (https://launchpad.net/API/1.0/~webup8team/+archive/Jupiter) to get PPA information, please check your Internet connection

and Internet is working

My specs are:

Inspiron 15 R Special Edition,BTX,7520
Intel Core 3rd Generation Processor,I7-3612QM,  4Core
32G Solid State Drive,ISRT,A5
PWA,Daughterboard, SATA,7520
HARD DRIVE,1 Terabyte,5.4 krpm
8 GB Dual Channel DDR3 SDRAM
Intel (R) HD Graphics 4000

AMD Radeon HD 7730M
15.6 Full HD  1080 pixel LED Display

Ubuntu 12.10 is loaded as a dual boot alone on the 32 GB Solid State Drive.