If buying a large cooler like 140mm (possibly some 120mm) Noctua, look up their site and see if it will block your TOP Primary PCI-E 16x slot.
They are going to address this and ram clearance with offset models soon (were shown at show a few week ago).
My Z68 ROG was E-ATX so fine but this Z87 ROG is normal ATX so top slot is block meaning I need to use the less than ideal PLX 16x slot and SLI is basically a no go for now.
I did check this on their site, no issues with the Gigabyte Gaming 7.