Dell OptiPlex 3020 Owner's Manual

Also see for OptiPlex 3020: Quick start guide Specifications Owner's manual Technical guidebook Technical guidebook

Dell OptiPlex 3020 Owner's Manual Manual pdf 42 page image

Troubleshooting your computerPower LED DiagnosticsThe power button LED located on the front of the chassis also functions as a bicolored diagnostic LED. The diagnostic LED is only activeand visible during the POST process. Once the operating system starts to load, it is no longer visible.Amber LED blinking scheme – The pattern is 2 or 3 blinks followed by a short pause then x number of blinks up to 7. The repeated patternhas a long pause inserted in the middle. For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause thenrepeats.Table 14. Power LED DiagnosticsAmber LED State White LED State Descriptionoff off system is OFFoff breathing system is in sleep stateblinking off power supply unit (PSU) failuresteady off PSU is working but failed to fetch codeoff steady system is ONAmber LEDStateDescription2,1 system board failure2,2 system board, PSU or PSU cabling failure2,3 system board, memory or CPU failure2, 4 coin-cell battery failure2,5 corrupt BIOS2,6 CPU configuration failure or CPU failure2,7 memory modules are detected, but a memory failure3,1 possible peripheral card or system board failure3,2 possible USB failure3,3 no memory modules are detected3,4 possible system board error3,5 memory modules are detected, but a memory configuration or compatibility error3,6 possible system board resource and/or hardware failure3,7 some other failure with messages on screenBeep CodeThe computer can emit a series of beeps during start-up if the display does not show errors or problems. These series of beeps, calledbeep codes, identify various problems. The delay between each beep is 300 ms, the delay between each set of beeps is 3 sec, and thebeep sound lasts 300 ms. After each beep and each set of beeps, the BIOS should detect if the user presses the power button. If so, BIOSwill jump out from looping and execute the normal shutdown process and power system.Code 1-3-2542 Troubleshooting your computer