What type of mothrboard do i have?

Count how many openings for add in cards you have on the back.
Most likely, it will be 4 which is M-ATX size.
If it is 7, it is full ATX.
You can find the exact motherboard model by running CPU-Z, a free download.

Why do you need to know?

Usually, a pc that is more than 3 generations old should be replaced instead of updated.
 

_Vass

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Nov 24, 2013
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yes it is, and if it's a Hx1 series motherboard (like the h61) i wouldn't bother using it again unless you're very tight on budget