Asus Crosshair V Formula/ThunderBolt - Manual (Page 42)

PCI.Express.x1.slots
This motherboard has one PCI Express x1 slot that supports a PCI Express x1
card complying with the PCI Express specifications. Refer to the figure below for
the location of the slot.
PCI.Express.x16.slots
This motherboard has four PCI Express x16 slots that support PCI Express x16
cards complying with the PCI Express specifications. Refer to the figure below for
the location of the slot.
VGA configuration
PCI.Express.operating.mode
PCIe.x16_1 PCIe.x8/x1_2 PCIe.x16/x8_3
Single.VGA/PCIe.card
x16 (Recommend
for single VGA)
N/A x16 (Single VGA)
Dual.VGA/PCIe.card x16 x1 x16
Triple.VGA/PCIe.card x16 x8 x8
2-12 Chapter 2: Hardware information