DTX Specifications

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AMD makes the official DTX specifications available to partners

AMD has officially pulled the wraps off its DTX specification (PDF). The company announced the specification was under development at the Consumer Electronics Show last month. Final mechanical specifications of the DTX form factor are available on AMD’s DTXPC website.

Base DTX motherboard specifications are as follows:

Overall size

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)

Mounting hole locations

Rear I/O dimensions and locations

PCI and/or PCI Express connector locations

Although DTX is slightly larger than VIA’s mini-ITX form factor, DTX calls for two expansion slots. Motherboard manufacturers are free to decide the configuration of the expansion slots, which can be PCI, PCIe or both. DTX motherboards will receive power via 24-pin power connector and auxiliary +12v 4-pin connector as standard ATX motherboards too.

With the specification finally published, it is up to manufacturers to build cases and motherboards based on the specification.