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A Case says it allows for MicroATX, with dimensions 9.6in x 9.6in but a motherboard is MicroATX, with the dimensions 9.6in x 8.8in. Will the motherboard still work with the case? as they are both MicroATX

Also is a different PSU needed for a microATX motherboard than an ATX one?

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up vote 1 down vote accepted

The max size of a MicroATX motherboard is 9.6in x 9.6in but they can be much smaller (6.75 in x 6.75 in according this Wikipedia article).

They use the same power supply connectors as the regular ATX motherboards.

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so they are both compatible? – Jonathan. Oct 19 '09 at 19:32
Yes, they are. Give us the brand and model of the case and the motherboard if you want to be 200% sure. – Snark Oct 19 '09 at 19:34 ASRock P55M Pro and… Akasa Freedom Xone – Jonathan. Oct 19 '09 at 19:37

There's a little site called that covers this. A couple screw holes are optional, the actual width is variable up to a limit based on the number of slots provided. The smaller board will mount and fit in the 9.6 x 9.6 space in the case.

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