ASROCK EPC612D8A User Manual page 34

PCIe Slot Configurations (For CPU with 40 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
CrossFireX
Three Graphics Cards in
3-Way CrossFireX
PCIe Slot Configurations (For CPU with 28 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
CrossFireX
Three Graphics Cards in
3-Way CrossFireX
If you install CPU with 28 lanes, PCIE5 and PCIE6 will be disabled and PCIE7 will run
at x8.
28
PCIE1
N/A
N/A
TM
Mode
N/A
TM
Mode
PCIE1
N/A
N/A
TM
Mode
x8
TM
Mode
PCIE3 PCIE5 PCIE6
N/A N/A
x16 N/A
x16 x8
PCIE3
x16
x16
x8
PCIE7
N/A x16
N/A x16
N/A x8
PCIE7
N/A
x8
x8