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X299 Taichi CLX
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
x16
N/A
N/A
Three Graphics Cards in
3-Way CrossFireX
TM
Mode
or 3-Way SLI
TM
Mode
x16
N/A
x16
N/A
x8
If a M.2 PCI Express module is installed on M2_1 or M2_2, PCIE2 will downgrade to x4 mode.
If M.2 PCI Express modules are installed on M2_1 and M2_2, PCIE2 will be disabled.
PCIe Slot Configurations (For CPU with 44 PCIe lanes)
PCIe Slot Configurations (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
If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.
* 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.
For a better thermal environment, please connect a chassis fan to the motherboard’s
chassis fan connector (CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP, CHA_FAN4/
WP or CHA_FAN5/WP) when using multiple graphics cards.
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
x16
N/A
N/A
Three Graphics Cards in
3-Way CrossFireX
TM
Mode
or 3-Way SLI
TM
Mode
x16
N/A
x16
N/A
x8
If a M.2 PCI Express module is installed on M2_1, PCIE2 will be disabled.
