How do i know if a GPU will fit in my motherboard?

[Hopsun]

I want to know if a ASRock H81m-HDS motherboard can house a GTX 970, how do i tell?

 

[ThatVietGuy]

As long as the motherboard has at least a PCIe 2.0 x16 slot then it'll fit. You can figure out that part yourself.

 

[DarkSable]

Does it have a full PCIe slot? (Yes, it does.)

If the answer is yes, then you're good to go.

Almost every motherboard out there (except embedded ones that come with a soldered-on CPU) have at least one PCIe x16 bus.

The question isn't if your motherboard is compatible, it's:

1) if the physical dimensions of your graphics card will fit inside of your case.
2) if your power supply is able to supply sufficient juice to the system with a more powerful GPU in it.
3) If your CPU isn't just going to bottleneck your new graphics card.