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AMD Ships First DTX Form Factor Prototypes

MojoKid writes "When AMD first revealed their plans for the DTX open industry standard, the intent of that early briefing was to explain AMD's vision for interoperable small form factor systems. Today AMD provided more details and a specific design example of the DTX small form-factor standard. This HotHardware article showcases a prototype system built on a low power AMD Athlon 64 BE-2350 processor and 690G chipset motherboard with integrated graphics. Maybe the HTPC just took a small step toward platform standardization?"

18 of 134 comments (clear)

  1. Re:Still too big... by trolltalk.com · · Score: 2, Insightful

    > "I'm of the opinion that they should go taller and slimmer. I like the size/distribution of the Shuttle SFF. This has a very large footprint for not having a place for a expansion slot graphics solution."

    So do like everyone did with the original desktops - turn them on their ends ...

    For the first decade, nobody had towers unless they made them themselves ...

  2. Platform standardization? - Not likely. by bitkari · · Score: 4, Insightful

    I doubt that this will do anything other than fragment the situation.

    BTX has been an utter failure, not because there was anything wrong with it, but that there was nothing compelling enough to shift people from ATX.

    Personally I'm a *big* fan of the improvements that ATX gave us over AT - Mostly that I'm no longer likely to electrocute myself by touching the live power switch in AT machines. Ouch.

    1. Re:Platform standardization? - Not likely. by houstonbofh · · Score: 3, Interesting

      Buy what you want and be happy. I, on the other hand, routinely build systems with 2-3 PCI cards. If you are doing video editing, or PC based DVR, PCI capture cards are the way to go. That is why we have more than one motherboard standard. You get what you want, and I get what I want. The point is that what does this new standard offern the ATX mATX and miniATX do not? Damn little from what I can see.

    2. Re:Platform standardization? - Not likely. by carlcory · · Score: 2, Informative
      Without looking at the spec, I'd guess that you have a case of AMD exploiting the peculiarities of their architecture and trying to push "a new standard".



      Probably payback for BTX, which Intel designed requiring memory to be too far away from CPU for AMD's (on board IOMMU) requirements.

  3. Comment removed by account_deleted · · Score: 3, Insightful

    Comment removed based on user account deletion

  4. still has legacy components by Lord+Ender · · Score: 5, Insightful

    When are we going to see motherboards which have NO serial ports, parallel ports, keyboard/mouse ports, floppy ports, IDE ports, analog audio output ports, analog video output ports, and all of that other legacy crutf?

    All we need is SATA, USB2/Firewire, digital video, and fiber-optic audio. Such a board would be cheaper, faster, smaller, less power hungry, and less complex than today's boards. Once widely adopted, it would make troubleshooting much easier and make components less expensive to produce with better signals.

    --
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    1. Re:still has legacy components by mccalli · · Score: 5, Insightful

      When are we going to see motherboards which have NO serial ports, parallel ports, keyboard/mouse ports, floppy ports, IDE ports....

      Yep, nodding along...

      .... analog audio output ports....

      Awake now. Analogue audio output ports are far from legacy - almost every non-computer speaker system on earth uses analogue. Headphones too. I can agree with your other points*, but it's far too soon to get rid of analogue audio.

      Cheers,
      Ian


      (*well I would do - I'm on a Mac here which has none of those anyway)

    2. Re:still has legacy components by Anonymous Coward · · Score: 5, Insightful

      Yes, and anyone who has had a 100 foot screen installed in their private theater room would agree that LCD panel televisions are obsolete.

      Except, you know, that they're not, because 99.999% of the market doesn't want to pay for that.

      Copper cabling is perfectly adequate to carrying a digital audio signal with adequate forward error correction; it's adequate for carrying a digital video signal, for goodness sakes. That'll eliminate all your pops and clicks right there. It can make sharper turns than fiber, too.

      In fact, I fail to see the point of fiber other than that TOSLINK got established early on for audio already. Optical audio is pretty much one of those "legacy" connections you're so keen to get rid of, and yet one that most people don't have equipment for. The "future" (whether it's a good idea or not) is probably a copper HDMI line running to a receiver, carrying both the audio and the video. Heck, HDMI will carry more, completely uncompressed audio channels than TOSLINK can, at a higher bit depth and sample rate.

    3. Re:still has legacy components by mccalli · · Score: 2, Insightful

      People who have used SPDIF fiber optic audio will all agree that analog audio is obsolete.

      I use SPDIF - used it when I had PCs a few years ago (switched to Shuttles about the time SPDIF was becoming common), and I use it now on my Macs. I still disagree with you on this point however - how can I plug my headphones into SPDIF? And the ubiquity isn't there either - if I want to use my laptop to play music somewhere that isn't my own carefully set-up room, I'm still better off having analogue available.

      Cheers,
      Ian

    4. Re:still has legacy components by Agripa · · Score: 2, Interesting

      In fact, I fail to see the point of fiber other than that TOSLINK got established early on for audio already.

      Common mode noise suppression in digital or analog line level signal wiring can be very important. Naturally, none of the current copper standards except ethernet and Midi provide ground isolation. USB and Firewire can be isolated at the endpoints but that is rare except in medical or industrial equipment. Professional quality audio equipment relies on balanced wiring of course which largely although not completely mitigates the problem as far as noise is concerned.

      Digital signals of course enjoy huge amounts of noise rejection because of their very nature but physical damage from ground loops is still possible. RS-232 serial and VGA connections seem to be particularly prone to problems of this type but so far their replacements seem to have learned a lesson about cable shield and signal ground connections.

      Speaker cable runs do not normally need to be balanced or shielded because proper output amplifier design will reject conducted or radiated RF interference.

      I agree however that in a majority of installations copper cabling (and analog) is completely adequate.
    5. Re:still has legacy components by Agripa · · Score: 2, Insightful

      Line level outputs are usually unbalanced but dedicated headphone outputs are often balanced to provide for 4 times the power using the same supply voltage.

      In either case proper circuit design and filtering is necessary to handle AM modulated RF. Shielding can help significantly but can also cause problems with ground loops for instance if not properly handled.

  5. Re:Still too big... by hedwards · · Score: 2, Interesting

    I don't think that these are really meant to be lain pizza box style on a desk. I had a couple of old Alphas which were similarly shaped, and similarly quite tiny. If you didn't stand them up on their side they would overheat in about 15 minutes, if you stood them on their sides, the lasted about an hour in a small poorly ventilated room.

    Small form factor computing, requires a large amount of cooling, the most efficient way is almost invariably to just allow for convection to do most of the work.

    The old school desktops of the 80s and early 90s could get away with being horizontal, because they had large metal cases with plenty of air inside. Lacking at least the volume of air, these wouldn't last very long at all without a large airflow.

  6. Re:Chassis design and internal layout found here; by backbyter · · Score: 2, Informative
    Remove the
    ?page=3/
    and the parent link will work
  7. Re:Still too big... by Alwin+Henseler · · Score: 2, Insightful

    This has a very large footprint for not having a place for an expansion slot graphics solution.

    If you had read the article more closely, you'd have come across this passage:

    And on the opposite side of the CPU you'll find the system's pair of expansion slots (a mini-DTX board would have only one slot). The design of the motherboard and chassis means only half-height cards can be used, basically because there is no room for a riser. The slots can be any combination of PCI Express or standard PCI slots, however.

    The pictures show what looks like a PCI-Express and a legacy PCI slot, so you can throw in expansion cards. Half-height ofcourse means that any powerful graphics cards are out. Personally I think I like the Shuttle-style systems better, but for another reason: thermal management. Those cube model SFF's with their well thought out CPU heatpipe cooling integrated with case fan, together with room for fullsize graphic cards and optical drive, just feels like a better thought out design (and looks great, too). Having one, big, slow-moving fan on the back, with vents on the side, is a lot better that a cramped case where CPU heat is drawn in and leaves through a small/noisy powersupply. What I'd personally like would be a case where the optical drive is the laptop form factor, harddrive also (no space reserved for a full 3,5"), and packed in a Shuttle-like casing (a bit smaller). But by then you might as well look at one of those ITX cases.

  8. Use laptops as a starting point by gelfling · · Score: 4, Interesting

    If you take the screen, battery, keyboard out of my Thinkpad what's left is 9"x7"x0.5". That's 229mm x175mm x13mm. That's just my rough estimate. If you took that form factor and put it in a case that you could open up w/o wrecking it you would have a great standard small formal machine. Mine has 2-USB, 1 S-video, 1-SVGA, 1-LPT, 2-PCCard, 1-DVD, 1-speaker out, 1-mic in, 1-Docking port.

    Seems to me that a no screen, no battery, no keyboard 'laptop' form factor in a case you can open combined with a planar you can add things to using the mini-PCI bus or just coupling it through a docking base would be the solution. In fact you could use a dumb coupling through the docking port via a flat cable and build all the expansion electronics and devices into the back of an outboard monitor. Basically you take the PC in the montor design and break it in two so that the basic PC is separate from the expansion bay in the monitor. Keyboard and mouse through a USB port or Bluetooth. With some work you could get the PC to be barely larger than it's own AC power adapter, sans drives.

  9. BTX by Z34107 · · Score: 3, Informative

    BTX wasn't a total failure. A lot of the BTX improvements - like what direction air flows through your case - were silently integrated into existing "ATX" machines.

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  10. What's needed for a real HTPC... by Amphetam1ne · · Score: 2, Insightful

    ...would be somthing that will fit in a VESA mount chasis and do full hardware decoding of H.264 and AVC1 from any container file.

    Given that a lot of people would want to run somthing like LinuxMCE, having to decode 1080i using a foss decoder would require somthing in the region of an Athalon X2 5000+, which makes housing it in a tiny box and ventilating it properly somwhat troublesome.

    In honesty, I'd rather not run an HTPC at all. XBMC was doing it all for me, right up until I got a HD screen and wanted to playback H.264/AVC1. Hopefully the exploit work on the 360 will continue at a rapid pace and we'll see XBMC360 sometime soon, then I can stop all this faffing around finding gfx cards that vsync properly, codecs that playback everything I want to watch without dropping frames and trying to find a frontend for it all that's usable without a kb/m. Would be nice to have somthing that "Just works" again.

    --
    I only buy pepper spray that's been tested on anti-vivisectionists.
    1. Re:What's needed for a real HTPC... by ZX3+Junglist · · Score: 2, Interesting

      Xbox 360 has supported h.264 4.1 High Profile playback from disc since May:

      http://www.xbox.com/en-US/community/news/2007/0408-im.htm
      http://www.redkawa.com/blog/post.php?t=892