Sights set on the motherboard, we've got to do a bit of housework to get it extractable.

The hard drive SATA cables are all neatly labeled, and routed out of the way to the opposite side of the case.

A fan assembly between the motherboard and hard drive cage is sporting that friendly user-serviceable green we love to see. A bit of prying and we pull them out, clearing the way to the motherboard.