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Dell Dimension 5100 not powering up
\015 Hello, I have a Dell Dimension 5100 computer system. The Motherboard is E187242.\015\012 The problem: it will not power on I have tried removing memory, replacing power supply with a generic one and nothing seems to work. I have read all of your forums and tried all the suggestions to no avail. \015\012I have found one solution:I remove the battery and leave the computer for at least two hours with no cables plugged in and then by crossing my fingers and plugging in all the cables the darn thing powers on. So I guess that I have an open resistor that is not allowing "start circuit" to discharge.\015\012My Question: Where can I find the schematics fo the motherboard especially the start up circuit.\015
I had a similar problem with my dell dim 5150 and after 3 days of intense research i found the problem. you see mine would not start either and all i had was the green motherboard light on and the yellow light on the power button blinking repeatedly, until i came a cross a post that said to check the USB slots, and so i did, turns out that after a very close look i noticed that one of the pins inside the USB slot were bent upwards and making contact with the metal hense not allowing the pc to boot. i used my wifes eyebrow plucking tool to straighten out the pin and wallah the pc boots up flawlessly now. so take a really close look at those USB slots and make sure all the pins are straight and not touching anything or each other. Good luck
I guess I have one. But my 5100 won't start if I unplug it for more than 5 minutes. I just try to find the reason why I have to apply the following solution: Dry blower. If I put in high the blower and blow the power supply and the mother board (softly) specially over the battery, it will start. Not matter what
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