Form factor size question

[sofasurfer]

MicroATX measures 244mm x 244mm (9.6 inches x 9.6 inches). I have an old motherboard, MSI H61M-P31/W8. This is said to be a MicroATX, however, its dimensions are 8-15/16 inches x 6-7/8 inches.
1) Is this really a MicroATX?
2) I am going to use the case from this old MSI board for a new MicroATX board. Can I be sure the mounts are in the right place?

 

[dos2unix]

The MSI H61M-P31/W8 is indeed a MicroATX motherboard**. The dimensions you mentioned (8-15/16 inches x 6-7/8 inches) are approximately 22.2 cm x 17.5 cm, which is within the MicroATX standard size of 244 mm x 244 mm (9.6 inches x 9.6 inches).

Regarding the mounts*, MicroATX motherboards are designed to be backward compatible with ATX cases. This means that the mounting points for MicroATX boards are a subset of those used on full-size ATX boards. Therefore, you should be able to use the case from your old MSI board for a new MicroATX board without any issues with the mounts.

 

[davidsmalas]

MicroATX measures 244mm x 244mm (9.6 inches x 9.6 inches). I have an old motherboard, MSI H61M-P31/W8. This is said to be a MicroATX, however, its dimensions are 8-15/16 inches x 6-7/8 inches.
1) Is this really a MicroATX? SRD
2) I am going to use the case from this old MSI board for a new MicroATX board. Can I be sure the mounts are in the right place?

No, the MSI H61M-P31/W8 is not a standard MicroATX; it's slightly smaller (8-15/16 inches x 6-7/8 inches). It's closer to a mATX-like size but not fully standard.

 

[dos2unix]

No, the MSI H61M-P31/W8 is not a standard MicroATX; it's slightly smaller (8-15/16 inches x 6-7/8 inches). It's closer to a mATX-like size but not fully standard.

That DOES conform to the ATX standard. The board size doesn't matter nearly as much as where the mounting holes are.

Although a board can definitely be too large to fit in a case. A smaller board doesn't mean it doesn't meet the standards.

You can find the specifications for an ATX motherboard size on various reputable websites. Here are a few sources that provide detailed information:

1. Wikipedia: The ATX (Advanced Technology eXtended) motherboard specifications, including dimensions, mounting points, and I/O panel details, are available on Wikipedia.
2. What in Tech: This site offers a comprehensive guide to different motherboard sizes, including ATX, and compares them with other form factors like E-ATX, Micro ATX, and Mini ITX.
3. MiniTool Partition Wizard: This page provides detailed dimensions and specifications for ATX motherboards and their variants.

 

[Fanboi]

https://www.msi.com/Motherboard/H61M-P31W8/Specification

M-ATX

And yes, as @dos2unix has pointed out, 99% of ATX cases have mounts for all.
If you're concerned just check the case specs for "supported form factors". As long as M-ATX is there, it will fit.

A little tidbit: Not all boards are exactly the same size. It's where the screw holes are that matters as they will align the board correctly with the case's back I/O. My current case has seen both an M-ATX in the past, and now, thank the pope, a full ATX board.

 

[Fanboi]

That DOES conform to the ATX standard. The board size doesn't matter nearly as much as where the mounting holes are.

Although a board can definitely be too large to fit in a case. A smaller board doesn't mean it doesn't meet the standards.

You can find the specifications for an ATX motherboard size on various reputable websites. Here are a few sources that provide detailed information:

1. Wikipedia: The ATX (Advanced Technology eXtended) motherboard specifications, including dimensions, mounting points, and I/O panel details, are available on Wikipedia.
2. What in Tech: This site offers a comprehensive guide to different motherboard sizes, including ATX, and compares them with other form factors like E-ATX, Micro ATX, and Mini ITX.
3. MiniTool Partition Wizard: This page provides detailed dimensions and specifications for ATX motherboards and their variants.

Heh, we posted literally at the same time, lol.