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Thread: How to power a dc-dc psu computer at home?

  1. 02-19-2003, 11:34 PM #1
    wysiwyg
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    How to power a dc-dc psu computer at home?

    Ok, my question is this. I want an easy way to power my computer with a dc-dc psu when I am doing "maintanence" at home. Stuff like transfering movies, music, etc. The way I've done it so far is just leave the car running while I'm doing these tasks. I'd like to be able to just bring it into my house and "plug it in". Could I modify a regular power supply to supply the 12V power the my dc-dc psu? If so how hard would it be to do? If not too hard could you tell me how to do it. I have a few extra laying around I could use. Or could I put a regular psu in the case along with the dc-dc and wire them both into the motherboard and harddrive at the same time? It would be a hastle having to swith the connections between psu's.
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  2. 02-20-2003, 02:50 AM #2
    Rob Withey
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    This is how I do it:

    Idea about how to power in the house

    There are some pictures on my site.



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  3. 02-21-2003, 10:25 AM #3
    t0ffluss
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    arg... my AT psu's only has about 11V on the 12V+ line.....


    I cant get my opus up and running on 11V ..


    any idea's?
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  4. 02-21-2003, 11:45 AM #4
    Rob Withey
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    Originally posted by t0ffluss
    arg... my AT psu's only has about 11V on the 12V+ line.....


    I cant get my opus up and running on 11V ..


    any idea's?
    Artificially load the 5v line. Most PC PSUs don't cope well with just the 12v line being loaded.


    Rob
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.
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  5. 02-21-2003, 12:04 PM #5
    t0ffluss
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    Originally posted by Rob Withey
    Artificially load the 5v line. Most PC PSUs don't cope well with just the 12v line being loaded.


    Rob
    yeah, i got it working... (plugged the AT psu to an old mobo,,,) it only did 11,6V ... (the Opus turned it self on..) .. but after 5 min, it self powered down.. im going to have a volt-meter and check if its the PSU thats powering down, or if its the opus that cant take 11,6V as a power source...
    "If A equals success, then the formula is: A=X+Y+Z. X is work. Y is play. Z is keep your mouth shut."
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