Motherboard & Case Compatibility

[HGShadow]

I've recently bought the Antec Gamersgear 1200 V3, a Big-Tower and I wanted to order the MSI Big Bang Marshal-B3 but thats an XL-ATX mobo, will this mobo fit in my case?

 

[geofelt]

I don't think so. Looking at the motherboard, it requires an extra set of standoff holes which do not seem to have a match on the case.