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Thread: Converting and Retro-Fitting an mATX to an Amiga PSU

  1. #11
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    Zetro, that is fan-bloody-tastic mate! You skills are awesome dude, I wish I could do a job that looks as professional as that one! Well done

    @ Kin

    Thats one neat PSU you have there now mate

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    Excellent work Zetr0! I'm very impressed.

    Heather
    Promoted to Level II Solder Tech and Hackery Padawan

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    Default nice guide

    Enjoyed this guide, and learned alot from it... txs..

    Would not wan't that fan on top But you are sure it is a proper psu..

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    I did the very same to one of mine weak A500 PSU.

    I was lucky enough to find a 230W mATX with a very thin fan. So on mine the fan is internal.

    I've put the voltage selector at the bottom and used the original power switch, cord and Amiga power cable.

    Also used the Dremmel on the underside and top vents to allow a bit more more air to circulate.

    Oh, BTW: I made this thread sticky!
    David Bradley made Ctrl+Alt+Del, Gates turn it mandatory
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    Haha, amazing, guess how I spent last night? That's right, converting an mATX PSU :) I opted to keep the original power cable, hardwired it to 230 V (I won't be traveling with my A1200 anyway), and left one drive power cable hanging out (you never know). Amazingly the mounting holes for the mATX PCB lined up perfectly with the Amiga case, so fitting it was easy. Still to do is mounting the small secondary PCB, and mounting a fan.
    Attached Thumbnails Attached Thumbnails CIMG1684.jpg   CIMG1685.jpg   CIMG1687.jpg  

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  7. #17
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    Z, one thing I didn't get was that the mATX needs a toggle switch and the Amiga power brick has a button, a "statefull switch".

    How was that solved?
    Minimig missing. Lost at forum

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    Wonderfull !


    But in good french, it's "et voilà"




    héhé

  9. #19
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    Excelent !!!

    @arnljot : http://pinouts.ru/Power/atxpower_pinout.shtml
    taking a look on the ATX connector you can connect pin 14 (usually either green or purple) with 0V (just one of the black ones)
    and the PSU will be on. the PSU usually has a direct ON/OFF from the 115/230V which is the one you want to use to switch on/off the psu.

    Puttin the ON/OFF between the PSU and Amiga is doable, but not recommended, eg if you switch off your Amiga, there'll still be power consumption in the PSU itself.

  10. #20
    RISK is good Amibayer! Tomse's Avatar
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    Hmm I think my first post disappeared. or perhaps it has to go through the moderator first ?

    @Zetr0 - Great guide, thanks makes it much better than having an ATX psu scratching the table (I'll no doubt follow your inspiration one of these days)
    Perhaps to drill some holes for the air to get out ?
    both for the movement, but also to prevent higher pressure inside, high pressured air becomes warmer, though I doubt that the temp will rise that much.

    @arnjlot in post #4 picture 4 you'll actually see the switch connecting pin 14 to 15 (or was it 13?) pin 14 when connected to 0V turns on the PSU.

    This is a way to do it, though not recommended in the essence that the PSU still consumes power when switched off.

    I'd recomend a break on the phase from the 115/230V instead.

    ___/ ____ AC Voltage

    _________ Null


    then just connect pin 14 to 0V permanently, eg pin 15 (or actually, where the pins whould have been before removing the exessive wires).
    Last edited by Tomse; 31st January 2010 at 21:51. Reason: Forgot the name of mainposter.

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