Chapter 2: Installation 2-5 I/O Port and Control Panel Connections The I/O ports are color coded in conformance with the PC99 specifi cation to make setting up your system easier. See Figure 2-3 below for the colors and locations of the various I/O ports. Figure 2-3. I/O Port Locations and Defi nitions Front Control Panel JF1 contains header pins for various front control panel connectors. See Figure 2-4 for the pin defi nitions of the various connectors. Refer to Section 2-6 for details. Figure 2-4. JF1: Front Control Panel Header (JF1) 16 15 Power LED Vcc HDD LED Vcc NIC1 Vcc NIC2 Vcc OH/Fan Fail LED Vcc Power Fail LED Ground Vcc Reset Button Ground Power Button 2 1 2-7