Micro ATX is one of the offshoots of ATX. The main difference from the main ATX form factor is size. ATX is a rectangular board size that measures 305mm. by 244mm. Micro ATX is a square that retains the 244mm. width but cuts down the length to by 61mm.
A mATX is smaller in size in compared to a ATX board, and therefore has lesser of certain slots (e.g. PCI Express and RAM slots). Otherwise, they're pretty much the same.
ATX, MicroATX, Flex ATX, BTX, and NLX, In that order.
MicroATX
Absolutely! The Gigabyte X3 ATX Mid Tower Case supports both regular ATX and microATX mainboards.
Yes. The connectors are the same. microATX is designed to be backwards-compatible with ATX, including interchangeable cases and power supplies.
FlexATX smaller version of MicroATX
No. All ATX cases are capable of accepting a microATX or FlexATX motherboard as well.
my computer speed is very slow why?
microATX and mini-ITX are form factors for system boards.
According to the information I have found, the case is a microATX case, meaning it will not support an ATX board.
There are many motherboard sizes, and ATX is simply one of them. Others inlude Mini-ITX, MicroATX, etc.
A micro ATX motherboard is simply a small version of the more popular ATX motherboard. It has less room for expansion (graphics, sound and network card.
ATX, Actually todays most common motherboard form factor used is MicroATX