•In single VGA card mode, use the PCIe 3.0/ 2.0 x16_1 slot (navy blue) for a PCI Express x16 graphics card to get better performance.
•In CrossFireX™ or SLI™ mode, use the PCIe 3.0/ 2.0 x16_1 and PCIe 3.0/ 2.0 x16_2 slots for PCI Express x16 graphics cards to get better performance.
•We recommend that you provide sufficient power when running CrossFireX™ or SLI™ mode. Refer to page
•Actual PCIe speed depends on installed CPU type.
•Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using multiple graphics cards for better thermal environment. See page
| PCIEX16 _ 3 PCI Express sharing mode |
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configuration | PCIEX16_3 |
| PCIEX1_1 | PCIEX1_2 | USB3_34 | ESATA |
| Auto Mode | X1 |
| X1 | N/A | X1 | X1 |
| X | 4 |
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| X4 Mode | (Recommend | N/A | N/A | N/A | N/A | |
| for high speed |
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| X1 Mode | X1 |
| X1 | X1 | N/A | X1 |
* Refer to PCI Express x16_3 slot (black) bandwidth on page
| A | B | C | D | E | F | G | H |
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PCIEx16_1 | shared | – | – | – | – | – | – | – |
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PCIEx16_2 | shared | – | – | – | – | – | – | – |
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PCIEx16_3 | – | shared | – | – | – | – | – | – |
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PCIEx1_1 | – | – | shared | – | – | – | – | – |
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PCIEx1_2/USB3_1234 | – | shared | – |
| – | – | – | – |
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PCI_1 | – | – | shared | – | – | – | – | – |
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PCI_2 | – | – | – | shared | – | – | – | – |
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LAN_1 |
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USB 2.0 Controller 1 | – | – | – | – | – | – | – | shared |
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USB 2.0 Controller 2 | – | – | – | – | – | – | – | shared |
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USB 3.0 Controller | shared |
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SATA Controller | – | – | shared | – | – | – | – | – |
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Marvell ® SATA 6G | – | – | – | shared | – | – | – | – |
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JMicron ATA Controller | – | – | – | shared | – | – | – | – |
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1394 Controller | – | shared | – | – | – | – | – | – |
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HD Audio | – | – | – | – | – | – | shared | – |
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I.G.D. (Internal Graphics | shared | – | – | – | – | – | – | – |
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Chapter 2
ASUS |