Asus Crosshair IV Formula - Manual (Page 54)

2.8 Connectors
2.8.1 Rear panel connectors
Rear panel connectors
1. PS/2 mouse port (green) 8. IEEE 1394a port
2. USB 3.0 ports 1 and 2 9. External SATA port
3. USB 2.0 ports 3 and 4 10. USB 2.0 ports 1 and 2
4. LAN (RJ-45) port* 11. ROG Connect switch
5. USB 2.0 ports 5 and 6 12. ROG Connect port
6. Clear CMOS switch 13. Audio Ports**
7. Optical S/PDIF Out port
*and **: Refer to the tables on the next page for LAN port and audio port definitions.
• Press the Clear CMOS switch to clear BIOS setup information only when
the system hangs due to overclocking.
• DO NOT insert a different connector to the external SATA port.
2-28 Chapter 2: Hardware information