What's ATX and BTX of MotherBoard?

Discussion in 'Computing and Networks' started by vivekanantha7, Jan 11, 2009.

  1. vivekanantha7

    Thread Starter Member

    Dec 1, 2008
    Hi Friends,
    I often used to find some words like ATX and BTX in Mother Board Configuration. What does it mean Actually? What the use of that hardware in the Mother Board?
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    These are standards, known as form factors, which describe the physical size, shape positioning and type of connectors. It also includes specifications for case and power supply.

    Look up form factor. Here is a start

  3. jj_alukkas

    Distinguished Member

    Jan 8, 2009
    An ATX is a normal motherboard with interface sockets positioned in such a way that it can be fixed into a cabinet with the left side opening. A tower or desktop pc uses it.

    A microATX is an even smaller motherboard of the same type as ATX but smaller in dimensions and can fit in cabinets like thin clients.

    A BTX is a mirror symmetry of an ATX. It can only be used on cabinets with right side openings and or on horizontal cabinets like a media centre PC.

    All these motherboards follows a specific power control standard such that the power can be controlled by onboard devices and enables it to shutdown on its own without an external switchoff button.

    Hope it answered your question.
  4. gregdevid


    Feb 4, 2009
    All the BTX power supplies that I looked at support the Standard ATX 12V 24 pin connector needed to connect to an ATX motherboard... Some also have the SATA connectors and others have the 4 pin or 8 pin needed for the video cards