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40-LANE CPU
VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe cards
Triple VGA/PCIe cards
28-LANE CPU
VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe cards
Triple VGA/PCIe cards
•
We recommend that you provide sufficient power when running CrossFireX™ or SLI
mode.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1-2 when
using multiple graphics cards for better thermal environment.
•
PCIEX4_1 is set to x1 mode by default.
•
Wi-Fi Controller/PCIEX1_1 is set to [Enabled] by default. Set this item in BIOS to
[Disabled] to enable auto detection of PCIEX1_1 device.
•
If the x1 device is not detected on PCIEX8_3 slot, set the PCIEX8_3 Slot Bandwidth
item in BIOS to [X8 Mode]. Refer to section 3.6.7 Onboard Devices Configuration
for details.
ASUS STRIX X99 GAMING
PCI Express 3.0 operating mode
PCIEX16/X8_1
x16
(single VGA
recommended)
x16
x8
PCI Express 3.0 operating mode
PCIEX16/X8_1
x16
(single VGA
recommended)
x16
x8
PCIEX16_2
PCIEX8_3
N/A
x16
x16
PCIEX16_2
PCIEX8_3
N/A
x8
x8
N/A
N/A
x8
N/A
N/A
x8
®
1-9
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