ASROCK Fatal1ty X299 Gaming K6 Serie Manual Del Usuario página 22

2.4 Expansion Slots (PCI Express Slots)
There are 5 PCI Express slots on the motherboard.
Before installing an expansion card, please make sure that the power supply is switched off
or the power cord is unplugged. Please read the documentation of the expansion card and
make necessary hardware settings for the card before you start the installation.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE4 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE5 (PCIe 3.0 x16 slot) is used for PCI Express x8 lane width graphics cards.
* If you install CPU with 44 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/
x16/x8.
* If you install CPU with 28 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/
x8/x0.
* If you install CPU with 16 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x4/
x0/x0 or x8/x4/x8/x0.
* If PCIE4 slot is occupied, M2_2 slot will support M.2 PCI Express module up to
Gen3 x2 (16 Gb/s).
PCIe Slot Configurations (For CPU with 44 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
CrossFireX
Mode
Three Graphics Cards in
3-Way CrossFireX
or 3-Way SLI
18
PCIE1
x16
TM TM
or SLI
x16
TM
Mode
x16
TM Mode
PCIE2 PCIE3 PCIE4
N/A N/A
N/A x16
N/A x16
PCIE5
N/A N/A
N/A N/A
N/A x8