Usb Power Selection; Table 4-4: Bios Options And Configured Usb Ports; Table 4-5: Usb Power Source Setup - IEI Technology SPCIE-C246 User Manual

4.6.5 USB Power Selection

The USB power selection is made through the BIOS menu in "Chipset  PCH-IO
Configuration". Use the USB Power SW1 and the USB Power SW2 BIOS options to
configure whether to provide power to the corresponding USB connectors when the
system is in S3/S4 sleep state. See Table 4-4 and refer to Table 4-5 to select the USB
power source. These options are valid only when the above Power Saving Function
(ERP) BIOS option is disabled.
BIOS Options
USB Power SW1
USB Power SW2

Table 4-4: BIOS Options and Configured USB Ports

Options
+5V DUAL
+5V

Table 4-5: USB Power Source Setup

Please refer to Section 5.4.2 for BIOS setup.
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SPCIE-C246 Full-size PICMG 1.3 CPU Card
Configured USB Ports
USB3_1 (external USB 3.2 Gen 1 port)
USB3_2 (external USB 3.2 Gen 1 port)
USB3 (internal USB 2.0 port, Type A)
USB1 (internal USB 2.0 ports)
USB2 (internal USB 2.0 ports)
USB4 (internal USB 2.0 ports)
USB3-1 (internal USB 3.2 Gen 1 ports)
Description
+5V dual (default)
+5V