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Thread: I bought a Rexus power supply

  1. #1
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    Default I bought a Rexus power supply

    It's a unknown brand, I get it. It's intended for use with a Athlon XP/socket 462 motherboard. I'm afraid to plug it in (especially after my dishevelled Tandy 4000 caught on fire earlier). I would like to load test it for, 6 - 12 hours maybe? I could short the 5vdc rail with some kanthal/nichrome wire, a length sufficient to draw 10 amps @ 5vdc. Which means that segment of the wire (in actuality a heating element) would have to be submerged in water LOL. I've done stuff like that before, I likely won't end up in the er. Unless someone can give me a better idea. I'd really like to pull 20 amps for a while, this thing is rated for 40 amps. Help me now please instead of later.

  2. #2
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    Well, just get a 0.5 ohm 50W resistor

    https://www.amazon.co.uk/Aluminum-Re...esistor&sr=8-5

    You could use an appropriate heat sink, maybe https://www.amazon.co.uk/Aluminum-He...553662&sr=8-19

    or you could blow a fan over it or dunk it in water (and make a nice cup of tea after a while)

    You could also put two in parallel for 0.25 ohm, 20A at 100W, but really, do you want to run a PSU at its max output (oops, noted that would be 50% only)

    Oh and make sure all the contacts are clean and sound so they dont overheat.,
    Last edited by Gary C; September 19th, 2020 at 02:24 PM.
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  3. #3
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    Globar in a can of mineral oil.

  4. #4
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    Default

    There are still places in NJ where I could get resistors (or maybe). Wanted to get this done over the weekend. Don't really want to send away for that stuff. We'll see.

  5. #5
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    Don't you have an old or somewhat useless mobo there about?
    Surely not everyone was Kung-fu fighting

  6. #6
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    Default

    The only possible but far from ideal candidate is a socket 775 p4 HP dc7600. It's not atx.

    Some would say the Foxconn mobo is pretty darn useless . But I'm now 70$ into this project and don't want to blow up the central item if at all possible. I do have a socket 478 ecs mobo, and an ibm netvista 478 board. I torched both of them to remove components LOL and spray painted the ibm white. Think they'll still pull any amps?

    I habe become the anti hoarder after so many years. I aspire to live as spartan an existence as possible. Hence I don't have tons of crappola around.

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