Introducing BTX

Intel released news of their Pentium 4 570J just yesterday when they lifted the NDA (non-disclosure agreement) on it.  Check out our benchmarks here. Today, a day after they released their 3.8GHz Prescott, Intel lifts their NDA on the longed for details of their new BTX form factor.

At Computex this past summer the technology on the minds of the attendees was the new reengineered PC form factor that was said to change the way we look at desktop systems and the way they are to be cooled. As we mentioned in our June sneak peak of this new "Balanced Technology" there are many who are thinking twice about the performance benefits of the successor to ATX and how the public will gain from changing over to it. We also mentioned that there are some who believe this new design is just a way to help deal with the thermal problem with Intel's CPU's and that since Intel is the only name backing the technology the thermal issue is the main reason they really want to continue the push for BTX. At Computex the only BTX board on the floor was from Intel, which was not a surprise to us, but there were quite a few BTX cases from various companies including Enlight and AOpen.


Today, as Intel releases information on the BTX form factor with special evaluation kits, case manufacturers can begin designing cases to compliment Intel's motherboards, but does the industry want to follow?  Passions are running high against BTX; the thought of the big chip maker forcing yet another design change upon the industry has several people extremely upset.  We received a press kit from Intel with a microBTX motherboard and AOpen's newest desktop BTX case. 

We plan to take a middle of the pack Intel 915G microATX motherboard/chassis combination and compare it to the new Intel 915G microBTX motherboard/combination we received today.  We will test the microATX motherboard in a full ATX desktop case and a microATX tower.  Thermals, noise and size will dictate the majority of our conclusions in the analysis.

Examining ATX
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  • HardwareD00d - Monday, November 15, 2004 - link

    Instead of spending all the money to research BTX, Intel should have just made watercooling standard on the Prescott CPU. Apple could have said they stole the idea from them like everything else ;)
  • Omega215D - Monday, November 15, 2004 - link

    It looks like Intel needs all the cooling it can get. I found an interesting article at Toms Hardware and here;s the closer about its heat problem "So, should a vendor release a product that is only able to run at its maximum performance under special circumstances? The fastest processors certainly are very exclusive devices, but that should not cause more troubles than necessary. The customer wants products that simply work! Think about that before releasing faster products, Intel." All I can say is wow, because I can remember my P3 866 didn't need all that cooling though now I moved on to AMD.
  • HardwareD00d - Monday, November 15, 2004 - link

    It sounds like you can essentially get the same thermal performance from an ATX case by adding 1 additional case fan.

    At least Intel has decided not to push this new form factor down peoples throats. Honestly, that's what I figured they'd try to do.
  • Gatak - Monday, November 15, 2004 - link

    To have the powersupply and drive bays at the bottom is a good thing. It will keep the temperature more balanced inside the case and also provide more room at the top for cards and for exhaust fans, rather than craming everything up there.
  • Pythias - Monday, November 15, 2004 - link

    ROFL #6!!
  • Ecmaster76 - Monday, November 15, 2004 - link

    If a retail board showed up to a review with that horrible a component layout, it would be figuratively flogged.

    I find that the review was somewhat flawed since it failed to see what would happen with a discrete graphics card in the box. If one was used, I didn't spot it in the screenshot of the full ATX or uBTX screeshots, and it wasn't mentioned in the text.

    Finally it should be mentioned that many people have theorized that the BTX layout would not work well for the Athlon64's onboard memory controller because of issues with trace layout. I'm no expert, but it does look like it might get a little tight.
  • ksherman - Monday, November 15, 2004 - link

    "Anand's *vacation* work trip to Taipei..."

    Probably one of the funniest things i have read in one of your reviews.... ;)
  • raskren - Monday, November 15, 2004 - link

    As always, so much Intel backlash, simply because, its Intel.

    This is how cases should have been done originally. Align all the hot components and put a fan in front and behind them. Makes sense, right?

    Current ATX design is "put a fan on every hot item you have". At least that's how my case is.
  • LoneWolf15 - Monday, November 15, 2004 - link

    To me, BTX looks like a winner for only one niche: small form factor business desktops. By that definition, I don't include Shuttle's wonderful SFF PC's which work best for home and HTPC enthusiasts. The microBTX form factor looks great for an office environment where quiet operation is a real plus, as well as power consumption, and since business PC's don't need to be cutting-edge, middle-end processors can be used that don't generate a lot of heat.
    Tor the enthusiast however, BTX looks like a bust to me, more of an attempt by Intel to throw the market out of whack, specifically AMD's market. Enthusiasts already have case designs meant to exhaust a lot of air and keep systems cool. Many enthusiasts LIKE a little bit larger case so that they have more expansion room, with the exception of their HTPC, and so that they can house a decent power supply for that expansion.
    I see HP, Compaq, IBM, and other mainstream business computing giants adopting BTX; it will probably do well in the business market as well as in mass retail, where OEMs would rather make a system with less fans to fail and at cheaper cost. That's a pretty big sector for profit of course, but this form factor, IMO, leaves PC enthusiasts out in the cold.
  • Beenthere - Monday, November 15, 2004 - link

    BTX is obviously NOT a great design. Intel changes sockets, Mobo and other specs periodically to FORCE people to update to their latest crap. Don't expect a rush to BTX. It's another Intel spec unlikely to ever gain foothold...

    For those who don't already know you can do wonders for ATX case cooling with "managed airflow". By actually directing incoming cool air to the heat sources and isolating the CPU fan from warm air in the case, no one really needs a BTX case and your PC will run much cooler with managed airflow.

    While Intel definitely needs a tornado inside a box to cool their defective 90 nano CPUs, the BTX standard is just another Intel marketing scam for all practical purposes.

    Just say NO !

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