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Thread: Question: SBC computers.

  1. #11
    FLAC
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    Thanks for all the infos, i'm looking into one right now.
    power wise, i think the opus 150W i have at the moment shouldn't have any problem.
    dopehead's board looks super, but something like that is going to cost me an arm and a leg.
    How much did you purchase ur for?
    Brian.

  2. #12
    FLAC
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    I've been playign with SBCs for quite some time now. Here's the deal.

    There are 3 main types

    PICMG- requires backplane usually, also the largest size (full size). easiest to add a PCi card to as it uses a backplane
    Half size PCI/ISA- usually takes a 4 pin molex or Aux 6 pin aux or even a full ATX. Can be attached to passive backplane or riser to add more PCI cards. MUCH smaller (half the size) of a PICMG
    Biscuit- same as the PCI, usually in 3.5 or 5.25 sizes. Sometimes has a PCI slot built in.

    For carputing, i would suggest a s370 model. Go either celeron or p3 at 800-1.4ghz, if you can support it. Pay close attention to the bus speed and everything as you want to pick the best processor for your board. Also, pay attention to whether it takes Sodimms or SDRAM. Sodimms are smaller and take less power, but are more expensive. The only good news is that you can more readily resell them for older laptop users and at a premium due to their rarity.

    I do have a friend who had one for sale, a full size with backplane, and i had one for sale, w/o backplane but i could get you in contact with my seller.

    SBCs are easy to set up- just read the directions
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  3. #13
    FLAC
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    You pretty much nailed it there Genesisfactor. I've been researching for the last couple of days, and you put it all together for me.
    I looked at a few site looking for the s370 model, but no hard spec on it. (which brand is it?) and they look really long. Remember my spec has to be under 7" x 5" maximum. i might be able to do (7" x 6") but thats pushing it.
    I'd much prefer one without a backplane, i'd like it to be as small as possible.
    I'll look into it some more. Right now, i'm waiting for a few suppliers to send me some quotes.
    Again, thanks for all your informative replies.

  4. #14
    Maximum Bitrate
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    Mine is a slightly older version which is mini-itx and not 3,5 inch sbc size....it cost around 179 for the mobo...
    Transflective Lilliput 8", LV-677DC Core Duo 1,83Ghz, , Mpegbox uSDC20D, Shuttle Express, HQCT, PG XS6600 http://carpc.boyakasha.dk

  5. #15
    FLAC
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    punky, i suggest- STONGLY SUGGEST ebay. These boards retail to $300-$700. I'm not paying that much and niether should you. The PM-4 ones are also really nice, but will ebay for over $100. Your wallet size dictates what you get. Which brand to get, its relly up to you, but advantech seems to be a hot one. I had bad experiences with their customer support who weren't too friendly when i asked questions outside their normal ones. look for 4 main things

    On board video
    USB 2.0
    Tualutin support
    max ram suported

    You don't want to be stuck running xp on a board that supports only 256MB ram. For size, i have both a sodimm and an SDRAM model and it really doesn't matter as the heat sinks usually are as tall as the ram.

    Also, a nice feature that i usually look for is CF slots or pc104. CF measn it can boot off solid state. PC104 allows you to insert add on cards to your boards, lke PC card slots, and other modules.

    Just remember that some vias are s370, so buying them, if the board supports it, may net you an extra processor to sell when you swap itout. Make sure to find and read the user's manuals or datasheets. You don't have a problem searching, which is good, so this s no big task to you. If you can't find a datasheet, call the company. They have em and will email them to you.

    That should start you off right. basically, this method has netted me some $70-$100 carputers.

    Now, power is somewhat tricky. On the 4 pin molexes, these suckers run LOW, i'm talking, 28-40W with everything installed. Some PSUs can't handly that if they don't have load on hte ATX side of things. They need load to work. THis usually applies to regualr coputer PSUs. I'm just saying, be careful
    Carputer Progress: Here we go again...

    THE GF THEME
    Genesis has speed
    Genesis has class
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    Join the fight against carputters. EMAIL ME!

  6. #16
    Raw Wave Rob Withey's Avatar
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    Quote Originally Posted by Genesisfactor View Post
    Also, a nice feature that i usually look for is CF slots or pc104. CF measn it can boot off solid state.
    My PCM9373 has a compact flash port. I haven't managed to make it boot from this however (8Gb seagate CF hard drive). I do boot from solid state from a disk-on-module plugged into the standard IDE port though. My point is you don't need CF to boot solid state.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  7. #17
    FLAC
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    yeah, that's very true, but MY point was it does it without any additional hardware, natively on the board. It makes for a very compact system. Its jsut if he wants or needs it.
    Carputer Progress: Here we go again...

    THE GF THEME
    Genesis has speed
    Genesis has class
    Genesis sent money
    before your a__;)

    Join the fight against carputters. EMAIL ME!

  8. #18
    Raw Wave Rob Withey's Avatar
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    Quote Originally Posted by Genesisfactor View Post
    yeah, that's very true, but MY point was it does it without any additional hardware, natively on the board. It makes for a very compact system. Its jsut if he wants or needs it.
    So does mine. Disk on module looks like this, and plugs straight into the IDE connector. No extra hardware needed.
    Attached Images Attached Images  
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

  9. #19
    FLAC
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    lol, why are you going point for point on me?

    I'm just saying that its a good thing lol. DOMs are good too, just a bit more expensive and proprietary. you're just as right as i am.
    Carputer Progress: Here we go again...

    THE GF THEME
    Genesis has speed
    Genesis has class
    Genesis sent money
    before your a__;)

    Join the fight against carputters. EMAIL ME!

  10. #20
    Raw Wave Rob Withey's Avatar
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    I was just pointing out that CF is not the magic enabling technology that you made it out to be - that "CF measn it can boot off solid state."
    CF isn't magic, it's just another interface. It doesn't mean that you can do something you couldn't otherwise do.
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

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