I have tried various solutions available online
1) Added pcie_aspm=force to /etc/default/grub
2) Since Jupiter is no longer available in 13.04 , installed tlp
But still fan is making lot of sound (its running very fast I guess) and temperatures are around 60c (and sometimes even increasing) even on normal load. But on windows8, its fine. I bought the laptop just a week ago.
Even battery is very bad in Ubuntu. It hardly lasts for 2 hours on normal usage (which lasts for around 4 hours for same usage in Windows). How can I improve battery performance ?