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Electronics Discharging caps

Discussion in 'Modding' started by The Savior, 4 Feb 2003.

  1. The Savior

    The Savior What's a Dremel?

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    I'm going to be doing some PSU modding in the near future, and I need to discharge the caps as to not create a danger to myself. I was thinging of hooking a wire upto the ground of a wall socket, and touching it to one of the capacitor leads. Would this work? Assuming I'm not a complete moron and don't do it in the rain or something, are there any dangers that I should be aware of? Thanks in advance!
     
  2. acrimonious

    acrimonious Custom User Title:

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    leaving unplugged for a few hours works.
     
  3. Fronzel

    Fronzel What's a Dremel?

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    Long handled screwdriver. Or get your little brother to lick the terminals.
     
  4. acrimonious

    acrimonious Custom User Title:

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    yaeh, if you connect the 2 pins together ith a long handled PLASTIC HANDLED screwdriver they will dischrage.
     
  5. ZapWizard

    ZapWizard Enter the Mod Matrix

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    A high wattage resistor would be a better choice to dis-charge the caps. A screwdriver works (And I have done it before :D)

    But you will create huge sparks and may destroy the solder joints.
     
  6. cpemma

    cpemma Ecky thump

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    And damage the capacitor internally. As Zap says, use a resistor with one end clipped to the metal case, a 1k will flatten them in a second or so.

    Any decent psu already has resistors across the big input caps, so by the time you've got the lid off they're already empty. Just make sure you unplug at the wall, ATX supplies are still hot after just a normal shut-down. ;)
     
  7. chill-tek

    chill-tek What's a Dremel?

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    Shorting the electrolytic caps can cream cracker them so i would either follow cpemma's advice or do what i have done before and it seems to work. Instead of powering off the PC at the power switch on your case, you can just restart your system and before it hits POST (That's Power On Self Test - Not Lamp Post :lol: ) , flick it off at the wall. This drains all the stored electron thingy me-jiggies i'm sure. Please correct me if i'm wrong.
     
  8. relix

    relix Minimodder

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    nice idea chill-tek :D

    let's just hope it wont cause any deaths around the forums, :p
     
  9. chambochae

    chambochae What's a Dremel?

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    /me dies
     
  10. Digitalblueshift

    Digitalblueshift What's a Dremel?

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    turn off, unplug, turn back on, the machine will whirr for a sec or two and then stop, chances are theye are drained.
     
  11. The Savior

    The Savior What's a Dremel?

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    It seems that chill-tek and cpemma's suggestions would be the easiest (and not involve me finding a high wattage resistor :p) so I think I'll go that route. Thanks for all the info guys!
     
  12. Lorquis

    Lorquis lorquisSpamCount++;

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    wouldn't just attatching a little lightbulb to it work?

    I like the idea of making someone lick them though...
     
  13. DETN8R

    DETN8R What's a Dremel?

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    Ive touched those 2 huge capacitors before, its not fun.

    Good luck with the PSU modding.
     

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