
The gpu would be installed into the highest pci slot, (in blue circle) it will also block the pci-e slot below it (circled in red)you can't see the blocked slot, but we know its there. So if for instance we installed a gpu on this motherboard. soundcard/network cards are usually single slot cards, however, the positioning can effect other devices. Most new high end graphics cards are normally dual slot now days, (apart from low end gpu's) so that means the card chosen most likely cover two slots on the motherboard, always the slot below. The black slot at the bottom, can be used too for adding another gpu, however, this is not really needed, also you will need a massive case, with very good cooling! the two slots circled in red are PCI-E slots, again can be either a soundcard or a network card, again other devices too. the two slots circled in green are the PCI slots, can be either a soundcard or a network card, or perhaps other devices. the two slots circled in blue are what ya gpu/gpu's will be connected in/plugged in.
