Screwy motherboard?

edited May 2014 in Hardware
I have an old Dell Dimension something-or-other that used to work perfectly (it ran Windows 2000), but then got thrown into storage, dismantled and reassembled, and basically beat up. At one point I found somebody had been using it as a storage box for screws and things.

Anyway, when I turn this thing on, or try to, absolutely nothing happens. No lights,no fans, and no hard-drive spinning noises. All the cables are connected, and the little LED on the motherboard is on. Should I scrap it or is there something I can do to fix it?

Comments

  • Are you sure the power button is connected to the proper jumper? (and that the power button is not defective?)

    See if you can read the motherboard labels next to the jumpers, and locate the jumper for the power switch. Then jump it with a screwdriver by touching both pins simultaneously. If you can't find it based on the labels, look up a schematic on the Internet.

    The "jumper" area can be found on a motherboard schematic, but usually looks like two rows of pins (6-10 pins roughly) and will have other things connected to it like your HDD LED, Power LED, Reset Button, etc.

    You might think that sticking a screwdriver in there is not going to help, but as long as you're only touching jumper pins there shouldn't be anything you can get shocked on or that you can hurt. Touching together the two "power button" jumpers is effectively the same action as pressing the power button on the case.
  • Might be a dead power supply. Use a paper clip and short out the green wire and a black wire on the power supply's main power connector known as P1.

    Also take note that Dell used odd wire schemes on power supplies so a typical ATX power supply isn't compatible unless you repin it or use a adatper.
  • Dell IS odd wire schemes. The front hub uses a proprietary connector.
    The power button and PSU are both good. I tested them. The hard drive and disc drive are good too.
  • Front hub? and Proprietary connector? Mean the AUX power connector?
  • He likely means the Front I/O ports use a funky header.

    What did you do to confirm that the power supply and power button themselves work?
  • I plugged them into another board with the same connector and used it to turn on the computer. It was also broken (wheel fell off a TV cart and I dropped it in front of five whole platoons), but I did get the beeping sound that means something's wrong.
  • whats the beep? There are beep codes, just find out what make the BIOS is and serach it on google and it should narrow it down.
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