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Shorted my power supply

Discussion in 'Hardware' started by chrisdab, Jan 26, 2006.

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  1. chrisdab

    chrisdab Thread Starter

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    Shorted my power supply

    This is kinda funny

    I stuck a screwdriver into my power supply fan so that I could test noise levels without the fan. Well even though the computer was off, it sparked. Now my computer wont start. Do I need a new case? Did I cause damage to other parts of the computer.

    Thanks
    Chris
     
  2. RedHelix

    RedHelix

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    The computer may have been off, but the power supply was still feeding power to the motherboard. You have to unplug the power cable and wait at least 10 seconds before even considering doing work on your PSU.

    You'll definitely want to visit newegg and pick out a new power supply. As for other parts, I can't say... when a power supply blows out, sometimes it takes other parts with it. Usually that only happens as a result of a power surge, but there's never any way to be certain. Get the new power supply, and if you still can't power on, you might be shopping for a new motherboard as well.
     
  3. winbob

    winbob

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    Red, 10 seconds will buy you the shock of your life!! :eek: Capacitors can hold a charge longer than that!!
     
  4. prunejuice

    prunejuice

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    How exactly do you test noise levels when the computer is off?
     
  5. winbob

    winbob

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    I expect he was going to turn it on after he pegged the fan...not a good plan in the first place.
     
  6. RedHelix

    RedHelix

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    That's how I've handled PSUs for as long as I can recall... if I die at the hands of a power supply, winbob, I'll make sure that you're the first to know. ;D
     
  7. StumpedTechy

    StumpedTechy

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    Winbob is right some of the capacitors in there will hold a charge for hours if not days enough to knock you on your keyster. You may be a lucky person to not have been shocked already.

    IMHO pinning the fan for just a few seconds wouldn't be bad if you were running an external fan into the assembly. My suggestion if you want to try this in the future is not use a metal conductive screwdriver and to have a desktop fan running.
     
  8. dustyjay

    dustyjay

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    A clean popsicle stick is a wonderful thing it is non conductive and it will hold fans in place plus is strong enough to use as a push stick in some instances. I actually went out and bought a pack of these at Big Lots for 99 cents. had 50 sticks in the pack. Now if I can just keep my daughter out of them.
     
  9. winbob

    winbob

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    Red,

    You won't have to let me know the smell of burning flesh and hair will be a DEAD giveaway. :eek:
     
  10. Jay_JWLH

    Jay_JWLH

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    Just remember when you do something inside the computer you either dont touch the parts much, or that you at least wear a static strap. Also at very least you would be using some sort of system (switch\fuse in the power box, plug or mutli plug thing). Make sure you check them (normally reset, which is a button somewhere), and you could be totaly lucky and a switch needs to be reset.

    Yeah, thats also a very good suggestion.
     
  11. crjdriver

    crjdriver Moderator

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    If you are going to open a ps, unplug it and then push the power button two or three times. The first time you press it, you will probably see the power led flash for a brief time. This will discharge the caps and it will now be safe to open.
     
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