Question about Dell Dimension 5100 (D51L1) PC Desktop

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Will not turn on.

We had a power outage and our computer is connected to a surge protector. It will not turn on, I have tried different cords, different outlets. I switched the red breaker switch in the back and have tried to turn it on, it will not work. The motherboard has a green light on so it is getting power. (This happened once in july of this year, after a power outage. I took it to a it tech at my work and he said he plugged it in and it turned on. afterward it just worked)
I am not sure if it is the on/off button, I inspected it from the outside and could not see anything wrong with it. I smell no burnt smell coming from anywhere in the computer. Please help

Josh

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  • Anonymous Jan 10, 2008

    My son had exactly the same problem last week and the machine still will not power up. Were you able to find any further information about the cause?

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Bad power supply chang epower strip use monsyter clean power one clean up usa dirty power dont ever flip that switch in back to 215 u will fry it we use 120 115 in usa only ok

Posted on Jan 06, 2008

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How old is your computer? Did you recently have a power outage or anything? Most the time if a computer won't turn on, something in it went bad OR an outlet is bad. Try this:

1. Make sure that the power switch is on, the switch in the back (on the power supply itself) is turned on, and everything along those lines is functioning.
2. If that doesn't work, and it will not power on AT ALL, make sure the cords are plugged firmly in place, including the surge protector and/or the power cord itself.
3. Try resetting the surge suppressor and/or plug the computer into a different outlet in the surge suppressor. Try other items in that surge suppressor (or even in the wall outlet, if that's what you're plugged into) to make sure that the outlet itself is working.
4. If your computer is plugged directly into a working wall or surge suppressor outlet, try a different power cord.
5. If your surge suppressor works, your wall outlet has power to it, and you are using a known-good power cord in the computer, you will have to go into more in-depth investigation as something inside the computer likely went bad. It could be the video card, motherboard, CPU fan, power button, or the power supply itself. Start by testing the video card and the power supply by (one at a time) swapping out a known-good component for the one you suspect may be bad. If it won't turn on after that, try swapping out the next and try it again. If it still will not work, it could be something more serious such as the motherboard or power button.

Good luck!

it could be a bad power supply or a bad motherboard. Other problems might cause issues, such as a bad video card.

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