ASROCK X99 WS User Manual page 25

PCIe Slot Conigurations (For CPU with 28 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
TM
CrossFireX or SLI
Mode
hree Graphics Cards in
TM
3-Way CrossFireX
TM
or 3-Way SLI Mode
TM
* 4-Way CrossFireX Mode and 4-Way SLI
PCIe lanes.
For a better thermal environment, please connect a chassis fan to the motherboard's
chassis fan connector (CHA_FAN1, CHA_FAN2 or CHA_FAN3) when using mul-
tiple graphics cards.
PCIE1 PCIE2
x16 N/A
TM
x16 N/A
Mode x8 x8
TM
Mode are not supported for CPU with 28
PCIE3 PCIE4 PCIE5
N/A N/A N/A
N/A x8 N/A
N/A x8 N/A
X99 WS
PCIE6
N/A
N/A
N/A
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