AMD's DTX Form Factor: Smaller PCs for Everyone?
by Anand Lal Shimpi on October 22, 2007 1:00 AM EST- Posted in
- Cases/Cooling/PSUs
Final Words
AMD's goal is to bring small form factor standardization to the channel and enthusiast markets, so that smaller system builders as well as end users can build smaller form factor PCs as well. It's a lofty goal, but very typical of AMD's approach: seeing a niche untouched by Intel and doing its best to make its mark. The problem is that a new form factor is a difficult (and costly) thing to establish, whether or not AMD can pull it off with DTX remains to be seen.
Because DTX motherboards have the same mounting hole locations as ATX boards, motherboard makers could just as easily standardize on DTX instead of micro-ATX. The motivation being that with DTX motherboards, end users have the ability to build small form factor PCs without resorting to expensive custom cases. The problem is that the argument for DTX, much like the one for BTX, is a classic chicken and egg scenario. While it may be easier for motherboard makers to make DTX boards than it was to produce BTX boards, the motivation just isn't there if there are no DTX cases. At the same time, there won't be any DTX cases if there are no DTX motherboards, and thus we have the same problem we had when BTX was first introduced - albeit not as severe.
If DTX does become successful then we will run into another problem: further fragmentation of PC form factors. BTX won't go away given its prevalence in the OEM market today, it will simply be augmented by ATX and DTX, which is something motherboard makers wouldn't be particularly eager to entertain.
Don't mistake our cautious skepticism for a lack of appreciation; we are excited about the idea of being able to have a wide variety of cases and motherboards to choose from, all based on the same standard. It would be great to be able to build small form factor PCs using standard components just like the OEMs can, but given that BTX hasn't been able to achieve such ubiquity it's difficult to believe that DTX can. ITX has had pockets of success, but it's far from widely used, DTX needs to do better than that.
It's nice to see a working DTX reference design, but as with BTX, it'll be at least a couple of years before we can measure success. There's also the argument that instead of motherboard makers producing DTX boards, they should simply focus on bringing micro and picoBTX solutions to the channel. These boards are already in use on the OEM side, so why not offer them to all?
Almost as good as an iMac
With no clear leader in the small form factor standard race, it's anyone's guess where DTX vs. BTX will end up among end users. There's also the question of whether or not there is a huge market for a standardized small PC form factor, will the entire market eventually move to a combination of a tower PC, a notebook and small, proprietary CE devices to get content throughout the home? Looking at the success of Apple's iMac and major OEM desire to compete in the all-in-one space, the debate over small form factor standards may be a little too late.
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leexgx - Monday, October 22, 2007 - link
monitors with DTX Clamps to Hold the PC to the back of the monitor :)Bluestealth - Monday, October 22, 2007 - link
Or a standardized docking slot for mini-desktops for monitors.Although the clamps allow for more varied case designs.
AmberClad - Monday, October 22, 2007 - link
I really can't see myself using this form factor. I use mATX right now, and that has a good balance of compact size and expandability -- enough expansion slots to meet an average user's needs without having an excess of empty slots like with regular ATX. If I wanted to go really small, I'd pick mini-ITX. I look at this DTX design, and I see something that is neither as flexible as mATX, nor as compact as mini-ITX. Building a decent HTPC with a motherboard that only supports two slots may prove difficult -- you'd have to compromise between picking a video card, TV tuner, and sound card. So DTX doesn't seem all that interesting for DIY use.On the other hand, it might be quite suitable for small form factor OEM systems. But with Apple's partnership with Intel these days, that's one system builder that probably won't be using this form factor...
Ajax9000 - Monday, October 22, 2007 - link
Foregoing the soundcard and using a digital audio connection to proper receiver/amplifier would be my choice.
I've been looking at mini-ITX but getting even a video card and a TV tuner (i.e. not USB) plugged in is difficult without resorting to exotic internal cabling/whatever.
So, I'd like a mini-DTX ... but supporting C2D thanks, the AMD processors don't excite me just at the moment ...
Shuttle is supposedly going to re-enter the motherboard market with boards such as the FP35 and FX38, but they are BTX-style.
yyrkoon - Monday, October 22, 2007 - link
DTX in my opinion has nothing to do with BTX, and has more in common with mini/micro-ITX.Ok sure, it is so far non widely accepted, like BTX, but that is where the commonalities stop.
Anyhow, it would be good to have something similar to mITX, and something that is standardized, and hopefully, not a rip-off fest waiting to happen(like mITX . . .).
defter - Monday, October 22, 2007 - link
So if you add a video card and a sound card, you will have zero slots left...It's unlikely that DTX will replace ATX among those who build PCs themselves, because of this slot limit. For example with micro-ATX you can have 4 expansion slots.
sprockkets - Tuesday, October 23, 2007 - link
yeah, but how many have you seen upgrade their video card? And if you need to replace the ethernet card, there is always usb.Think business stations as well. Oh wait, they are going back to diskless computer terminals.
Regs - Monday, October 22, 2007 - link
I think ATX is reaching its limits too. The size of a video card just keeps getting bigger and bigger..kyp275 - Monday, October 22, 2007 - link
I see this as mostly for the HTPC crowd than anything else, where you don't really need much as far as expansion slot goes.BansheeX - Monday, October 22, 2007 - link
One of the things that always confuses me is that today's PCs seem unnecessarily large and we could easily reduce material waste and power consumption by ditching ATX completely and making micro-atx/dtx/whatever the new standard. It seems logical that the desktop should move from 3.5 HDs to 2.5 HDs, 5.25 CD Drives to Slim CD drives, and full profile graphics/sound cards to low-profile graphics sound cards. At one point, I'm sure it wasn't technologically attractive, but these days even 2.5 hard drives can reach extremely high speeds and capacities. The price premium is largely a result of it NOT being the standard, so that would not be an issue. Floppies are gone or USB-alized, so that's not taking up space anymore.