About Your Computer 2310 power light The power light illuminates and blinks or remains solidto indicate different states:• No light — The computer is turned off (S4, S5, ormechanical OFF).• Steady green — The computer is in a normaloperating state.• Blinking green — The computer is in a power-saving state (S1 or S3).• Blinking or solid amber — See "Power Problems" onpage 123.To exit from a power-saving state, press the powerbutton or use the keyboard or mouse if it is configuredas a wake device in the Windows Device Manager. Formore information about sleep states and exiting from apower-saving state, see "Power Management" onpage 40.For a description of diagnostic light codes fortroubleshooting problems with your computer, see"Diagnostic Lights" on page 100.11 microphoneconnectorUse the microphone connector to attach a personalcomputer microphone for voice or musical input into asound or telephony program.12 headphone connector Use the headphone connector to attach headphones.13 diagnostic lights (4) Use the diagnostic lights to help you troubleshoot aproblem with your computer (see "Diagnostic Lights"on page 100).14 network link light The network link light is on when a good connectionexists between a 10-Mbps, 100-Mbps, or 1000-Mbps(1-Gbps) network and the computer.