Dell OptiPlex 3020 Owner's Manual

Also see for OptiPlex 3020: Quick start guide Specifications Technical guidebook Technical guidebook Quick start guide

Contents

Dell OptiPlex 3020 Owner's Manual Manual pdf 51 page image

5Troubleshooting Your ComputerYou can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and ErrorMessages during the operation of the computer.Power LED DiagnosticsThe power button LED located on the front of the chassis also functions as a bicolored diagnostic LED.The diagnostic LED is only active and visible during the POST process. Once the operating system startsto 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 ofblinks up to 7. The repeated pattern has a long pause inserted in the middle. For example 2,3 = 2 amberblinks, short pause, 3 amber blinks followed by long pause then repeats.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 LED State Description2,1 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 error51