Dell Precision T1650 Owner's Manual

Also see for D09M: Setup and features information

Contents

5Troubleshooting Your ComputerYou can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and Error Messages during theoperation of the computer.Power LED DiagnosticsThe power button LED located on the front of the chassis also functions as a bicolored diagnostic LED. The diagnosticLED is only active and 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. Therepeated pattern has a long pause inserted in the middle.For example 2,3 = 2 amber blinks, short pause, 3 amber blinks followed by long pause then repeats.Table 12. Power LED DiagnosticsAmber LED State White LED State Descriptionoff off system is OFFoff blinking 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 failure, 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 failure has occurred3,1 Possible peripheral card or system board failure has occurred3,2 A possible USB failure has occurred3,3 No memory modules are detected3,4 possible system board error has occurred3,5 Memory modules are detected, but a memory configuration or compatibility error has occurred49