Amber LEDStateDescription2,7 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 screenMemory Beep CodeThe system emits a series of beeps during startup if it detects no memory. The beep code pattern emittedis 1-3-2 (1 beep, then 3 beeps, then 2 beeps). The delay between each beep is 300 ms, the delay betweeneach set of beeps is 3 secs, and the beep sound lasts 300 ms. Reseating the memory modules may fix thememory errors. After emitting beeps, the BIOS will detect if the user presses the power button and willexecute the normal shutdown process and power the system off.Troubleshooting System Startup FailureIf you boot the system to the BIOS boot mode after installing an operating system from the UEFI bootmode, the system hangs. The reverse is also true. You must boot to the same boot mode in which youinstalled the operating system.For all other startup issues, note the system messages that appear on the screen.Troubleshooting External ConnectionsEnsure that all external cables are securely attached to the external connectors on your system beforetroubleshooting any external devices.Troubleshooting The Video Subsystem1. Check the system and power connections to the monitor.2. Check the video interface cabling from the system to the monitor.3. Run the appropriate diagnostic test.If the tests run successfully, the problem is not related to video hardware.If the tests fail, see Getting Help.63
