Hardware Reference
In-Depth Information
The DTX (and Mini-DTX) specification was released in February 2007 by AMD as smaller
variations of the microATX and FlexATX specifications, respectively. DTX boards are up to 8
inches × 9.6 inches, whereas Mini-DTX boards are a shorter version at only 8 inches × 6.7 inches.
Mini-DTX boards incorporate only four mounting holes (C, F, H, and J), whereas DTX boards add
two more for a total of six (C, F, H, J, L, and M). Refer to
Figure 4.19
for the respective hole
locations. The size of the DTX and Mini-DTX boards as they relate to FlexATX are shown in
Table
slots. Although AMD is no longer supporting DTX and Mini-DTX, vendors are producing Intel
Atom-based systems based on the Mini-DTX standard. Motherboards produced in these form factors
can be installed in microATX, FlexATX cases, or Mini-ITX cases.
Figure 4.19. Top and rear views of the ASRock H67M-ITX motherboard, a third-party Mini-
ITX motherboard with support for interchangeable processors and PCIe video.
Table 4.5. Comparing FlexATX to DTX and ITX Motherboard Families Form Factors
