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Difficulty: HardMotherboards Form Factors and Connectors

A technician is evaluating system board compatibility and physical layout constraints for a home theater PC (HTPC) build housed within a small form factor (SFF) chassis. The selected case explicitly mandates a Mini-ITX motherboard. Which of the following statements correctly identify physical design features or standardization rules for Mini-ITX motherboards compared to Micro-ATX or standard ATX boards? (Select TWO.)

  1. Mini-ITX motherboards specify a square physical dimension of 6.7×6.7 inches6.7\times 6.7\text{ inches} (17×17 cm17\times 17\text{ cm}) and feature a maximum of one expansion slot.Answer
  2. Mini-ITX motherboards utilize four screw mounting hole locations that align directly with a subset of standard ATX chassis standoffs.Answer
  3. C
    All M.2 connectors on Mini-ITX motherboards natively support NVMe storage protocols and are physically keyed to reject M.2 SATA solid-state drives.
  4. D
    Mini-ITX motherboards require all four system RAM slots to be populated simultaneously to achieve dual-channel memory performance.

Answer

The correct statements are that Mini-ITX motherboards feature a square physical dimension of 6.7×6.7 inches6.7\times 6.7\text{ inches} (17×17 cm17\times 17\text{ cm}) with a single expansion slot, and that their four mounting holes align with standard ATX case standoff patterns.
Mini-ITX is defined by its compact 6.7×6.7 inch6.7\times 6.7\text{ inch} (17×17 cm17\times 17\text{ cm}) footprint and single PCIe expansion slot layout. Furthermore, its four mounting hole positions were specifically designed to match a subset of standard Micro-ATX and ATX standoff locations for maximum case compatibility.

Step-by-Step Solution

1
Analyze Mini-ITX form factor dimensions and expansion capabilities.
Mini-ITX is standardized at 6.7×6.7 inches6.7\times 6.7\text{ inches} (17×17 cm17\times 17\text{ cm}) and accommodates only 1 expansion slot due to restricted edge space.
Understanding form factor physical dimensions is essential for small form factor enclosure compatibility.
2
Evaluate mounting standoff positioning and backward compatibility.
The 4 mounting holes on a Mini-ITX board share exact locations with standard ATX/Micro-ATX chassis standoff grids.
Ensures Mini-ITX boards can be mounted in larger enclosures without re-drilling or adding non-standard standoffs.
3
Identify common misconceptions regarding RAM slots and storage interfaces.
Mini-ITX motherboards feature a maximum of 2 memory slots (not 4), and M.2 slots can interface with SATA or PCIe protocols depending on motherboard specification.
Eliminates incorrect distractors based on slot count limits and interface protocol confusion.

Key Concept

Mini-ITX Form Factor Specifications and Standoff Alignment
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Topics

Motherboards Form Factors and Connectors

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