Acer Aspire 5515 running Windows 7 Home premium.
My laptop runs just fine while running Windows, but when I try to access the BIOS or other pre-boot settings (F8 key at startup), I only get about 30 seconds in each section/menu before my laptop just turns off. Also, I can't restart my laptop without it turning off after a minute or so. I have to shut it down, wait at least 2 minutes, then start it up again and it runs just fine every single time.
Is there some sort of timer setting somewhere that would cause the machine to shut down like that after a certain amount of time?