computer won't turn on

By bbethany14
Jul 6, 2007
  1. Does anyone have any ideas what to do? Everything else plugged in is on but the computer itself won't turn on.
  2. raybay

    raybay TS Evangelist Posts: 7,241   +10

    What brand or model of computer, and how old is it? Give us the information off the label on the back. Desktop or laptop?
    Are you good with a screwdriver?
    Do you live in a big city, or a small town, because we need to help you find parts or a tech help.

    Did you do something different? Like add a new video card, or memory, or other component?
    Do any lights come on anywhere? Red, orange, blue. Is the screen totally dark at all times.
    Can you get it into a position where you can see the back of the computer?

    Usually, the problem is one of these:
    Failed or dirty power supply.
    Failed or dirty power switch
    Failed memory module
    Failed video graphics port, if PCI
    Failed hard drive, though most will give you something on the screen
    Failed or dirty CPU fan.
    In some cases, a failed audio card or modem, or usb card in a pci slot, if it fails electrically, will cause everything to stop.
    There can be other problems such as a bad CPU or bad motherboard, but they are exceedingly rare.

    To begin checking it, it is helpful to look at the back of the machine. At the top of the back is a power supply with a fan. Get somebody to attempt to turn on the power while you watch with a bright light.
    If you see the fan blades turn 1/8 turn or up to 3 turns, then stop, that usually means your power supply is bad.
    Next, are you sure that wall socket is good? Strange things happen. Plug something else in there to be sure it is working.
    You can buy and replace the power supply for $30 to $50. But if you have an HP Pavilion, or a Sony VAIO, it can be very difficult to get into the case to do this.
    If you get back to us with the above information, we can begin to give you some ideas on how to get back to a running state.
    Please get back to us, and we will do our best to give you some assistance.
  3. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

Topic Status:
Not open for further replies.

Similar Topics

Add your comment to this article

You need to be a member to leave a comment. Join thousands of tech enthusiasts and participate.
TechSpot Account You may also...