ASRock X99 Extreme6/3.1 User Manual - Page 26

Single Graphics Card, Two Graphics Cards in, CrossFireX, or SLI, Hree Graphics Cards in, Way

Page 26 highlights

PCIe Slot Conigurations (For CPU with 28 PCIe lanes) PCIE1 PCIE2 PCIE3 PCIE4 PCIE5 Single Graphics Card x16 N/A N/A N/A N/A Two Graphics Cards in CrossFireXTM or SLITM Mode x16 N/A x8 N/A N/A hree Graphics Cards in 3-Way CrossFireXTM Mode x16 N/A x8 N/A x4 *3-Way SLITM Mode is not supported for CPU with 28 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 multiple graphics cards. English 20

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20
English
PCIe Slot Con±gurations (For CPU with 28 PCIe lanes)
PCIE1
PCIE2
PCIE3
PCIE4
PCIE5
Single Graphics Card
x16
N/A
N/A
N/A
N/A
Two Graphics Cards in
CrossFireX
TM
or SLI
TM
Mode
x16
N/A
x8
N/A
N/A
Hree Graphics Cards in
3-Way CrossFireX
TM
Mode
x16
N/A
x8
N/A
x4
*3-Way SLI
TM
Mode is not supported for CPU with 28 PCIe lanes.
For a better thermal environment, please connect a chassis fan to the motherboard’s chas-
sis fan connector (C´A_FAN1, C´A_FAN2 or C´A_FAN3) when using multiple graphics
cards.