It is a Dell Vostro 200 running Windows XP Home Edition 32-bit with SP3, originally came with SP2. I have been having this issue for a few months now and I can't seem to find any topics related to my specific issue, it took me by surprise one day because its never done this before and I think this all started in the past three months of last year. When I press the power button it will start to boot up but then the power light will turn amber and it will completely shut off but then it starts up again, it does this a total of two times and then by the third time it will boot up and beep once, then I can access my desktop and it all works fine. But when I restart, it will do the same exact thing but only once, and then boots up but won't beep. I know its not over heating because I clean it well with compressed air and check it with Speccy, it also doesn't restart suddenly while I'm using it. I don't know what could be causing this, if it was one of the speakers that fell on the tower and knocked something loose or the power cord is going bad. I'm not a computer expert, I know a few things here and there but I've never worked inside of one, this isn't so much a problem as it is a nuisance, its just frustrating that I can't find any topic about it.