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pc and electricity

Discussion in 'Electrical Engineering' started by mark, Oct 18, 2006.

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  1. mark

    mark Guest

    My cousin has a laptop that will not power up at his house. It powers
    up find at my house. I have switched it to different outlets in both
    houses. Every outlet in my house works, while every outlet in his house
    will not load the computer. Other things such as lamps, and kids toys
    will load on those outlets. Is it possible that the flow of electricity
    to these outlets is insufficient to power up a computer, but will power
    a lamp? Is there something I could do to check the electrical flow to
    these outlets? I am not an electrician, I am a PC Technician. Should I
    use a voltmeter to check the voltage reading (i think i have one laying
    around my house somewhere).
    Mark
     
  2. Guest

    | My cousin has a laptop that will not power up at his house. It powers
    | up find at my house. I have switched it to different outlets in both
    | houses. Every outlet in my house works, while every outlet in his house
    | will not load the computer. Other things such as lamps, and kids toys
    | will load on those outlets. Is it possible that the flow of electricity
    | to these outlets is insufficient to power up a computer, but will power
    | a lamp? Is there something I could do to check the electrical flow to
    | these outlets? I am not an electrician, I am a PC Technician. Should I
    | use a voltmeter to check the voltage reading (i think i have one laying
    | around my house somewhere).

    Does this power convert have 2 prongs to plug in or 3 prongs? If 3 prongs,
    then go to the hadware store electrical section and get one of those little
    circuit testers with 3 prongs and 3 lights. They are marked with which 2
    lights should be on and which 1 should be off for a correct circuit. If
    the power converter only has 2 prongs, try it both ways (e.g. upside down).
    Still not working? Get the voltmeter and test voltages on that circuit and
    other circuits, too. Test WITH a lamp plugged in and turned on in the same
    circuit (usually the other outlet in the same duplex receptacle). The
    voltage should be around 120 volts plus or minus 5% or maybe 10% if in a
    more remote location. The voltage should be very close to the same in all
    outlets. If you find voltages dramatically different (some high, some low)
    in different places in the house, shut off the MAIN breaker only and call
    a licensed electrician. Let is know.
     
  3. TimPerry

    TimPerry Guest


    this reminds me of the story of the man who's new car failed to start only
    when he bought vanilla ice cream.

    the legend has it that after a short trip to the grocery store when he
    bought vanilla ice cream that car wouldn't start yet if he bought anything
    else or even another flavor of ice cream the car would start.

    turns out that the vanilla was kept in a freezer right up near the checkout
    and the other flavors were deeper in the store so it took longer to get.

    problem turned out to be a vapor lock issue.



    question 1: is the battery pack in the laptop functional?

    question 2: when attempting to boot, are you hooked to a LAN? a modem?

    question 3: is there a large temperature difference in the environments?

    question 4: is the problem location in a strong FR field? (i.e. a TV
    transmitter within block or 2)

    question 5: what about other locations then the 2 mentioned?

    question 6: have you tried customer support from either the maker or
    retailer where you bought it? have you tried a users group for that brand to
    see of others experience this?

    question 7: have you checked to see if this is one of the "exploding"
    batteries that we were all warned about recently?

    question 8: when transporting is the unit subjected to significant
    vibration? bumpy ride?

    question 9: is the power supply warmer at either location?
     
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