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Computer won’t start. Power on button light flashing.

By Mitz

Free computer Tips

How annoying it is when you get a problem with your computer. One minute they are fine, and the next thing you know it is basically dead. I especially hate it when you press your power button and nothing happens. The button just starts blinking or flashing and nothing comes up on the screen. It seems like the computer is sending me a signal, but what is it trying to say?

Unfortunately different makes and models of computers do different things for which could be the same error causing the problem. Some computers have a beep sequence code and others have no signals at all. However when it comes to the computer not starting and the power light flashing on and off I always test the power supply first.

You can also take the side of your computer case off to listen for the cpu fan starting when you press the button. If it seems a bit slow and quiet you can almost guarantee that there is not enough power getting through to your computer. If you have a spare Power supply hanging around and you have done this type of thing before, try swapping them over. If you are not confident in working on computers yourself, get a professional to do it for you.

I was working on a computer with this problem a few years ago, and it turned out to be the power cord. It was faulty, which allowed the computer to work most of the time, but then other times it would not boot and the power light flashed. This was a rare because the problem is usually the actual power supply itself.

If this doesn’t work for you, try removing everything that is connected to your computer. Remove the mouse, keyboard, monitor, PCI cards, graphics cards, etc. Now you should only have the power cable connected. Turn the computer on now. If the blinking power light is gone and it seems ti be running, this could mean that there is something wrong with one of the components you have just removed. Replace them one at a time, testing to see if the computer works each time. When the flashing light comes back you know you have found the problem.

If changing the power supply didn’t help, or removing all of the components either, it doesn’t look good. Now it could only be the cpu or the motherboard.

Notes:

  • One other idea is to try changing the bios battery.. You never know..LOL

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