Asus SABERTOOTH 990FX GEN3 R2.0 SABERTOOTH 990FX/GEN3 R2.0 User's Manual - Page 38
IRQ assignments for this motherboard, configuration
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VGA configuration Single or Dual VGA/PCIe card 3-way SLI PCIe 3.0_x16_1 x16 (Recommend for single VGA) x16 PCI Express operating mode PCIe 2.0_x16_2 PCIe 3.0x16_3 x16 x16 x16 x8 PCIe 3.0x16_4 N/A x8 • In single VGA card mode, use the PCIe 3.0 x16_1 slot (beige) for a PCI Express x16 graphics card to get better performance. • In CrossFireX™ or SLI™ mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_3 slots for PCI Express x16 graphics cards to get better performance. • In 3-way SLI mode, use the PCIe 3.0 x16_1/PCIe 3.0 x16_3/PCIe 3.0 x16_4 slots for PCI Express x16 graphic cards to get better performance. • 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. IRQ assignments for this motherboard A B C PCIe x16_1 shared - - PCIe x16_2 shared - - PCIe x16_3 shared - - PCIe x16_4 - - - PCIe x1_1 - - - ASM eSATA - - - ASM SATA [Gray] - - - ASM USB3_12 - - - ASM 1042 (Front) - - - ASM USB3_3 shared - - Realtek 8111F (LAN) - - - Onchip SATA [Brown] - - - Onchip Audio shared - - Onchip USB2_1-5 - shared - Onchip USB2_6-8 - - - Onchip USB2_11-14 - - - D E F G H - - - - - - - - - - - - - - - - shared - - - - shared - - - - shared - - - - - - shared - - - - shared - - - - - shared - - - - - - - shared - - shared - - - - - - - - - - - - - - - - shared - - - - - - shared Chapter 1 1-24 Chapter 1: Product introduction