ASRock X299 Steel Legend User Manual - Page 25

PCIe Slot Configurations For CPU with 44 PCIe lanes, PCIe Slot Configurations For CPU with 28 PCIe

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X299 Steel Legend PCIe Slot Configurations (For CPU with 44 PCIe lanes) PCIE1 PCIE2 PCIE3 Single Graphics Card x16 N/A N/A PCIE5 N/A Two Graphics Cards in CrossFireXTM or SLITM Mode x16 N/A x16 N/A Three Graphics Cards in 3-Way CrossFireXTM Mode x16 N/A x16 x8 or 3-Way SLITM Mode PCIe Slot Configurations (For CPU with 28 PCIe lanes) PCIE1 PCIE2 PCIE3 Single Graphics Card x16 N/A N/A PCIE5 N/A Two Graphics Cards in CrossFireXTM or SLITM Mode x16 N/A x8 N/A 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. * If you install CPU with 44 or 28 lanes and encounter CrossFire issues, please do the followings. 1. Enter UEFI by pressing or 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. 19 English

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English
19
X299 Steel Legend
PCIe Slot Configurations (For CPU with 44 PCIe lanes)
PCIe Slot Configurations (For CPU with 28 PCIe lanes)
PCIE1
PCIE2
PCIE3
PCIE5
Single Graphics Card
x16
N/A
N/A
N/A
Two Graphics Cards in
CrossFireX
TM
or SLI
TM
Mode
x16
N/A
x8
N/A
* 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
PCIE5
Single Graphics Card
x16
N/A
N/A
N/A
Two Graphics Cards in
CrossFireX
TM
or SLI
TM
Mode
x16
N/A
x16
N/A
°ree Graphics Cards in
3-Way CrossFireX
TM
Mode
or 3-Way SLI
TM
Mode
x16
N/A
x16
x8