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[ The PC Guide | Systems and Components Reference Guide | Motherboard and System Devices | The Motherboard | Motherboard Form Factors ]

Comparison of Form Factors

This table is a summary comparison of the sizes of the various motherboard form factors, and compatibility factors.

Style

Width

Depth

Where Found

Match to Case and Power Supply

Full AT

12"

11-13"

Very Old PCs

Full AT, Full Tower

Baby AT

8.5"

10-13"

Older PCs

All but Slimline, ATX

ATX

12"

9.6"

Newer PCs

ATX

Mini ATX

11.2"

8.2"

Newer PCs

ATX

LPX

9"

11-13"

Older Retail PCs

Slimline

Mini LPX

8-9"

10-11"

Older Retail PCs

Slimline

NLX

8-9"

10-13.6"

Newer Retail PCs

Slimline

Note: Some ATX cases will accept baby AT form factor motherboards.

Next: The Passive Backplane Concept: The PC's Future?


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