Dell XPS 8100 Rebuild questions

[Dmc87]

I have an old Dell Studio XPS 8100 laying around and I was hoping to use the case to rebuild it. I was curious as to what size of motherboard could fit in this case? I haven’t been able tO find information on the case size so I hoping some had an answer. I was hoping to use this build for gaming and photo editing.

 

[King Dranzer]

mATX Motherboard and ATX PSU will fit in easily but you will have to check for GPU clearance.