ASROCK X299 Taichi XE Manual page 28

PCIe Slot Configurations (For CPU with 28 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
TM
CrossFireX or SLI
Mode
Three Graphics Cards in
TM
3-Way CrossFireX Mode
or 3-Way SLI TM Mode
PCIe Slot Configurations (For CPU with 16 PCIe lanes)
Single Graphics Card
Two Graphics Cards in
CrossFireX TM Mode
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.
* If you install CPU with 44 or 28 lanes and encounter CrossFire issues, please
do the followings.
1. Enter UEFI by pressing <F2> or <Del> during system startup.
2. Select "Boot > CSM" from the menu.
3. Set "Launch Storage OpROM policy" to "UEFI only".
4. Press F10 to Save and Exit.
PCIE1 PCIE2
x16 N/A
TM
x16 N/A
x8 N/A
PCIE1 PCIE2
x16 N/A
x8 N/A
PCIE3 PCIE4 PCIE5
N/A N/A
x8 N/A
x8 N/A
PCIE3 PCIE4
N/A N/A
x4 N/A
X299 Taichi XE
M2_1
N/A x4
N/A x4
x8 x4
PCIE5 M2_1
N/A x0
N/A x4
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