ASROCK Z170 OC FORMULA User Manual page 26

PCIe Slot Conigurations
Single Graphics
Card
Two Graphics
Cards in
CrossFireX
TM
SLI Mode
hree Graphics
Cards in 3-Way
CrossFireX
Mode
Four Graphics
Cards in 4-Way
CrossFireX
Mode
For a better thermal environment, please connect a chassis fan to the motherboard's chas-
sis fan connector (CHA_FAN1, CHA_FAN2, CHA_FAN3 or CHA_FAN4) when using
multiple graphics cards.
20
PCIE1
x16
x8
TM
or
x8
TM
x8
TM
PCIE2 PCIE4
N/A N/A
N/A x8
x4 x8
x4 x4
PCIE6
N/A
N/A
N/A
x4