Dell Dimension 4600 won't power up {Resolved} - Page 2
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Thread: Dell Dimension 4600 won't power up {Resolved}

  1. #16
    Join Date
    Apr 2000
    Location
    Sheboygan, WI
    Posts
    53,392
    Remove the pci dial up card. Nothing new about lightning killing them thus causing what you see happening.

  2. #17
    Join Date
    Jun 2005
    Location
    Ft Myers FL
    Posts
    8,520
    No problem at all with testing the power switch; just follow the wires from the switch to the motherboard, pull them straight away from the board, then momentarily short the two switch pins with a jeweller's or similar small screwdriver.

  3. #18
    Join Date
    Jun 2008
    Posts
    2
    Quote Originally Posted by Train
    Remove the pci dial up card. Nothing new about lightning killing them thus causing what you see happening.
    It has a dialup card but I believe they use broadband. Even still I pulled it out anyways and still won't start.


    lgbpop: The power switch has two wires from the front button, 1 white, 1 red. I hooked up a voltmeter to the two pins on the mb where they would hook into and I'm only seeing .1-.2V. I'm guessing this isn't right and there's probably an issue with the mb.

    Any thoughts?

  4. #19
    Join Date
    Apr 2000
    Location
    Friern Barnet, London, England
    Posts
    46,565
    You should get either 3.3 volts or 5 volts on one of those header pins, in any event it should be > 2.0 volts. If you definitely aren't getting that then it's either the PSU or mobo that's at fault. Here's how to test the power supply:

    Testing PSU Voltages

    ATX Power Supplies

    Trigger Power Supply for testing

    In depth look at the power supply
    Nick.

  5. #20
    Join Date
    Jul 2008
    Posts
    2

    Same old problem

    I am trying to fix a 4600 for a friend. I too thought the power supply so I bought a new one. I put it in this morning and got the same results. Flea light the only thing working. I tried jumping pin 14 to common and got the PSU fan going but that is it.

    I thought I may have gotten a bad PSU but I tested it in another dell and the new one boots up the other computer fine. So in that case, all the voltages should be OK. I couldn't test the old PSU because it only has the 20 pin connector and the other PC uses the 24 pin. The new PSU has the 20 pin with the 4 pin option.

    So I have tried everythink I could think of so far including pulling all cards and memory, jumping the power button pins to bypass that as well to see if it was the culprit. I even tried swapping the MB battery with a new one to see if that would help. I also disconnected the CPU cooling fan and still no joy.

    Is there anything else on the motherboard or any where else to look?

  6. #21
    Join Date
    Feb 2000
    Location
    Idaho Falls, Idaho, USA
    Posts
    18,063
    Check for bad capacitors - leaking or bulging, or other damage.

  7. #22
    Join Date
    Jul 2008
    Posts
    2
    Thanx for the advice. I checked all through the motherboard and nothing looks out of the ordinary.

    My only clue so far is if I jumper pin 14 to common, the CPU cooling fan will come on and the hard drive will spin up. But the system won't boot at all.

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