Pci Express Configuration; Table 5-2: Bios Options And Configured Usb Ports; Table 5-3: Bios Options With Correspondent I/O Configuration - IEI Technology IMBA-Q170-i2 User Manual

USB Power SW1 [+5V DUAL]
Use the USB Power SW1 BIOS option to configure the USB power source for the
corresponding USB connectors (Table 5-2).
+5V
+5V DUAL
USB Power SW2 [+5V DUAL]
Use the USB Power SW2 BIOS option to configure the USB power source for the
corresponding USB connectors (Table 5-2).
+5V
+5V DUAL
BIOS Options
USB Power SW1
USB Power SW2

Table 5-2: BIOS Options and Configured USB Ports

5.4.2.1 PCI Express Configuration

The BIOS options of the PCIEX4_3 Slot Mode item vary by BIOS (BIOS1 or BIOS2). The
following table lists the BIOS options with correspondent I/O configuration.
BIOS Options
BIOS1 (a)
BIOS1 (b)
BIOS2 (c)
BIOS2 (d)

Table 5-3: BIOS Options with Correspondent I/O Configuration

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IMBA-Q170-i2 ATX Motherboard
Sets the USB power source to +5V
D Sets the USB power source to +5V dual
EFAULT
Sets the USB power source to +5V
D Sets the USB power source to +5V dual
EFAULT
Configured USB Ports
K/M_USB1 (external USB 2.0 ports)
LAN1_USB1 (external USB 3.0 ports)
LAN2_USB2 (external USB 3.0 ports)
USB1 (internal USB 2.0 ports)
USB2 (internal USB 2.0 ports)
USB3-1 (internal USB 3.0 ports)
S_ATA3 and S_ATA4
Connectors
S_ATA3 S_ATA4
x x
S_ATA3 S_ATA4 USB 3.0 expansion card
x x USB 3.0 expansion card
PCIEX4_2 Slot PCIEX4_3 Slot
PCIe x4 slot
PCIe x4 slot
PCIe Mini and mSATA
expansion card
x
PCIe x4 slot
PCIe x2 slot