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Thread: M1 Atx Psu

  1. #1
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    M1 Atx Psu

    What sort of power will this run, How many USB devices can you use ?

  2. #2
    Maximum Bitrate kbyrd's Avatar
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    C'mon now, do your own homework. Go to the mp3car.com store, find the m1-atx product listing, click on the "specifications" link. That will tell you how many amps at various voltages the m1-atx can supply. Then you figure out how many amps at what voltage your USB devices take then you're done.
    My worklog.
    Status: VM GTI sold, got out of the CarPC tinkering hobby, but I still think about getting back in.

  3. #3
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    I can never work these damn thing out.
    Ok Spec and bits.

    Sp13000
    512 Mb
    40gb 2.5" Hdd
    Usb Network Ad
    Usb Bluetooth
    Usb Mini Speakers
    Usb Touchscreen
    Usb mini key/mouse
    Usb GPS reciver
    and Thats it.

    will it be Ok?

  4. #4
    Maximum Bitrate kbyrd's Avatar
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    Hmm, you didn't even try? Did you go to the store and download the specs?
    Well, I thought about bashing you some more, but I suppose I'll just help out.


    I googled "power supply calculator" that led me to some Intel/AMD type calculators. I then googled "power supply calculator epia" and found this:
    http://resources.mini-box.com/online...simulator.html

    You can't configure your exact system, but it does get close. I added 6 USB devices, and it looks like that will work. The M1-ATX has a 10a max on the 5V rail (which powered USB, I think). You'll need a USB hub, not sure if that sucks more power too. Also, if you're powering the screen that'll draw from the 12V rail not the USB port. So, it looks like this will work. Don't come crying to me if I'm wrong. This was a 15 second estimate.
    My worklog.
    Status: VM GTI sold, got out of the CarPC tinkering hobby, but I still think about getting back in.

  5. #5
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    Yeah and remember this is the guy who just blew up his M1 ATX

    Burned m1-atx, is this the voltage regulator?

    So he knows what not to do......

    I just couldn't resist kbyrd

  6. #6
    Maximum Bitrate kbyrd's Avatar
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    Quote Originally Posted by dug1967
    So he knows what not to do......

    I just couldn't resist kbyrd
    Thanks ;-)
    For those who are curious, I overloaded the 12V rail, but not because I was intentionally drawing to much. I reversed the + and the - wires connecting to a diode and it becomes a short circuit.
    My worklog.
    Status: VM GTI sold, got out of the CarPC tinkering hobby, but I still think about getting back in.

  7. #7
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    Looks like i will be ok,
    I will use a hub for the non essientail items, like keyboard,mouse which are just for back up.

    cheers Kbyrd

  8. #8
    Maximum Bitrate kbyrd's Avatar
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    Quote Originally Posted by scooby8272
    Looks like i will be ok,
    I will use a hub for the non essientail items, like keyboard,mouse which are just for back up
    The only reason I said "you need a hub" is that there aren't that many USB ports on the mobo. If you use a non-powered hub, the devices on the hub still draw from the mobo which draws from the PSU. If you use a powered hub, well now you have to power the hub somehow, usually by splicing a wire from the PSU or buying a "point of load regulator" (a simpler DC-DC power supply)
    My worklog.
    Status: VM GTI sold, got out of the CarPC tinkering hobby, but I still think about getting back in.

  9. #9
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    I have used the usb risers on the mainboard giving me 4 more usb ports, i have 6 in total now

  10. #10
    FreeDrive Creator CdRsKuLL's Avatar
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    The sp1300 has 6 usb ports if I remember rightly.. 2 on the back and two headers on board :-)

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