Biostar P4VMA-M P4VMA-M user's manual - Page 14

(8) Front USB Header: JUSB3/ JUSB4 The motherboard provides two USB 2.0 Pin Header. USB 2.0 technology increases Data transfer rate up to a maximum throughput of 480 Mbps, which is 40 times faster than USB 1.1, and is ideal for connecting high-speed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems, etc. Pin Assignment Pin Assignment 1 +5V(fused) 2 +5V(fused) 3 USBP-0 5 USBP+0 4 USBP-1 6 USBP+1 19 7 Ground 8 Ground 9 KEY 10 NC (9) Power Source Selection for USB: JUSBV1/JUSBV2/JUSBV3 (for version 2.0 only) JUSBV1/JUSBV2 Assignment Description JUSBV3 Pin 1-2 close +5V 1 JUSBV1: 5V for USB at the J1394_USB1 port connector. JUSBV2: 5V for USB at the JUSBLAN1port connector. JUSBV3: 5V for USB at the JUSB3/ JUSB4 port connectors. Pin 2-3 close 1 +5V Standby Voltage JUSBV1: 5V Standby voltage for USB at the J1394_USB1 port connector. JUSBV2: 5V Standby voltage for USB at the JUSBLAN1 port connector. JUSBV3: 5V Standby voltage for USB at the JUSB3/JUSB4 port connectors. Note: In order to support the function "Power-on the system via USB devices function," " JUSBV1/JUSBV2/ JUSBV3" jumper cap should be placed on pin 2-3 respectively. (10) Serial ATA Connector: JSATA1/JSATA2 The motherboard has a PCI to SATA Controller with 2 channels STAT interface. It satisfies the SATA 1.0 spec and can transfer data with 1.5GHz speed. Pin Assignment Pin Assignment 1 Ground 2 3 TX- 4 TX+ Ground 1 5 RX- 6 RX+ 7 Ground English 14