I know my post is quiet old but I still want to update it... Maybe it will help someone with the same computer as mine.
I install a fresh Ubuntu 14.4 x64 and refound all the noise and over heat. What I've done to improve all that is:
FIRST AND IMPORTANT. I tried an installation with efi and the step of silent mode below was not available and it seems the system was slower and less fluent. So before installing Ubunut go to the BIOS (F2 at start) and change the UEFI mode to disable. After that install Ubuntu.
1) Change the Grub according to this post :http://ubuntuforums.org/showthread.php?t=1865820
GRUB_CMDLINE_LINUX_DEFAULT="i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 pcie_aspm=force quiet splash"
(to modify the Grub you need to be root. What I've done is open nautilus vis the terminal in root but you can as well directely open the grub file via the terminal)
The file is located etc/default/grub
Then in the terminal : sudo update-grub
2) install samsung-tools viewtopic.php?t=1091
then enter in the terminal :
samsung-tools -c silent
(only possible if ubuntu is installed with UEFI disable)
That will put the fan in silent mode and that makes a big difference.
Hope this can help...