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 Post subject: power for cathodes
PostPosted: 23.03.2006 07:23 
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Junior Modder
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Joined: 15.03.2006 22:19
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I just ordered some cathodes and was wondering where to get power for them. They don't have molex connectors on them, but they have an ac inverter intended for use with 12V (for a car). Where do I get the power for them? Splice into one of the molex connectors? Also, what kind of power do most of these use? Will it put stress on my power supply? I have a 300W PS with two HDs and two dvd drives running of it. Thanks for your help!


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 Post subject:
PostPosted: 23.03.2006 09:01 
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Yellow wire supplies +12 volts to your molex connector. Just take one yellow wire and one black wire (there are two of them in a molex, just take either one of them) and connect the inverter that came with the cathode to them. Make sure that the polarity of the wires is correct when you hook them up. Yellow to the + wire on the inverter and the black wire from the molex to - side on the inverter.

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PostPosted: 23.03.2006 09:08 
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Junior Modder
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Awesome! Thanks a lot for your help! Apparantley the inverter has polarity protection, so it doesn't matter, but I'll still be sure to hook yellow up to the positive. Any idea on if I'm going to overload my power supply with this? Thanks again!


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PostPosted: 23.03.2006 10:02 
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Should not be a problem but like always, it is hard to say how much spare wattage certain PSU have. Just test. :)

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 Post subject:
PostPosted: 23.03.2006 10:50 
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Junior Modder
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Joined: 15.03.2006 22:19
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Test it by grabbing the yellow wire and measuring with a multimeter? I suppose I never thought of that! Thanks!


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 Post subject:
PostPosted: 23.03.2006 11:50 
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Actually not like that. Just connect the cathode to the comp and see how it performs. If you can continue to use the computer without crashes for a day or two with the lights on, it should continue to work like that in a future too.

Measuring the voltage can give you some clues but it is hard to say if the voltage drop you are seeing from the power line is succifient enough to cause any problems. Some power supplies can show like 11.5 volts from the 12 volt line but the can keep the voltage level there with even a high load. Some cheap supply may show you 12.3 volts with low load but when loaded more, the voltage can drop very dramatically and affect the stability of the system.

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 Post subject:
PostPosted: 23.03.2006 11:55 
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Junior Modder
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Alright, fair enough! Thanks again for your help!


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