atx

ATX (Advanced Technology eXtended) is a motherboard configuration specification developed by Intel in 1997 to improve on previous de facto standards like the AT design. It was the first major change in desktop computer enclosure, motherboard and power supply design in many years, improving standardization and interchangeability of parts. The specification defines the key mechanical dimensions, mounting point, I/O panel, power and connector interfaces between a computer case, a motherboard and a power supply.
ATX is the most common motherboard design. Other standards for smaller boards (including microATX, FlexATX, mini-ITX and extended ATX) usually keep the basic rear layout but reduce the size of the board and the number of expansion slots. Dimensions of a full-size ATX board are 12 × 9.6 in (305 × 244 mm), which allows many ATX chassis to also accept microATX boards. The official ATX specifications were released by Intel in 1995 and have been revised numerous times since. The most recent ATX motherboard specification is version 2.2. The most recent ATX12V power supply unit specification is 2.31, released in February 2008.
In 2003, Intel announced the BTX standard, intended as a replacement for ATX. However, as of 2016, the ATX design still remains a standard for do-it-yourselfers; BTX has however made inroads into pre-made systems.

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  1. Cyrusgsxr

    seeking help laptop to atx tower switch suggested full builds

    Hi folks first post in here and very confused as to the way forward , as age creeps and my eye sight is failing so seeking to upgrade from my current acer aspire e15 15.6" laptop which has 1tb TOSHIBA MQ01ABD100 hhd 7200rpm and 8 gb ddr4 , If I could use these parts incorporated in a new...
  2. B

    EVGA 750G Replacement 24pin ATX cable required - Confused!

    Hi, help for someone who knows very little about PC's please. My son has recently been given a EVGA 750G Supernova PSU but the ATX motherboard cable is missing and i'm confused by what i need to buy as a replacement. From what i understand it's a 24pin to 24pin connector and i'm hoping some...
  3. icstm

    Question ATX based HTPC Upgrade

    As you can see from my build log, my current hardware is a little dated and would love the forum to suggest upgrade options! Not sure of budget, but generally I have gone mainstream enthusiast type components. Happy to take a different steer based on your inputs. I would like to update the...
  4. Bully9

    Asus M5A78L-M/USB3 (760G) or Asrock 970M Pro3 Micro ATX (AMD 970)

    I'm building a matx system probably with an already purchased AMD FX6300 cpu and RX 460 graphics. The main difference in the mobos seems to be onboard graphics on the Asus (which i presume i don't need) and a better (?) chipset on the AsRock. I'm frankly not that techie so i'd appreciate...
  5. bobcollege

    Recommend ATX Case 40cm Max Height?

    Hi does anyone have any recommendations for a ATX case with a height of no more than 40cm? I need one this height to side under my desk/drawers. I am currently using a Bit Fenix Prodigy mATX case but a m8 is sending me down some parts, including a ATX mobo, so I need to replace the Prodigy with...
  6. D

    Question Build advise - Mini ATX?

    Hi All, I've been a notorious lurker on these forums of late but think I could definitely do with some advise from here. I've decided I'm going to leap in and do my own PC build for gaming. I currently have a PS4 I barely use but hoping moving back to PC will reignite the enjoyment. I used to...
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