AMD releases final DTX specs

AFTER AMD announced its DTX case format in January, the promised specifications have now been released for all to view - and stick to.

DTX motherboards have been designed to fit into existing ATX chassis, and DTX-compliant chassis will be able to use mini-ITX motherboards, which allows for full backwards compatibility.

These smaller board sizes allow up to four boards per standard manufacturing panel size. All of these factors have allowed AMD's new specification to - hopefully - lower costs for mini form-factor manufacturers.

The DTX specification is slightly larger than Via's mini ATX form factor, but DTX includes a mandatory two expansion slots - either PCI or PCI-Express.

AMD spoke of an additional Xpresscard slot within the preliminary specification but this isn't mentioned in the new document, probably as it focuses on form factor as opposed to additional paraphernalia.

DTX uses a standard 24-pin power connector and an additional 2x2 power connector.

DTX motherboard layout sizes are as follows:

• Full-DTX - 9.60 in x 8.00 in (243.84 mm x 203.20 mm)
• Mini-DTX - 6.70 in x 8.00 in (170.18 mm x 203.20 mm)

A couple of pictures from the pre-release specifications give an idea of how these sizes relate to existing boards.

Below is the full DTX layout compared to the existing micro ATX specification.

Further more, below is the mini DTX layout compared to the existing micro ATX specification.

The full 10-page specification in PDF form can be seen here. µ

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