A35FE/FB Wont power on everytime

My a35FE/FB Laptop wont power up most of the time. I press power button nothing happens for a while then it might power up then it wont.
If laptop goes to sleep i cannot wake it or power down until i take battery out and try again.
Could it be a bios problem?
My bios is :

The issue is unlikely to be BIOS related if the unit was working fine before. When did the problem start, can you think of anything that changed just before the problem started.