User Manual
Page 8
... and the electrical outlet. Solid blue light indicates power-on and is reading data from or writing data to the power connector (at support.dell.com/manuals. If the LED does not light up, the power supply may be defective. For more information on the diagnostic lights, see the Service... Manual at the back of the computer. Blinking blue light indicates that the computer is functional. Memory Minimum memory Maximum memory 1 GB 8 GB Drives Externally ...
... and the electrical outlet. Solid blue light indicates power-on and is reading data from or writing data to the power connector (at support.dell.com/manuals. If the LED does not light up, the power supply may be defective. For more information on the diagnostic lights, see the Service... Manual at the back of the computer. Blinking blue light indicates that the computer is functional. Memory Minimum memory Maximum memory 1 GB 8 GB Drives Externally ...
Owners Manual
Page 1
Dell OptiPlex 390 Small Form Factor Owner's Manual Regulatory Model D04S Regulatory Type D04S001
Dell OptiPlex 390 Small Form Factor Owner's Manual Regulatory Model D04S Regulatory Type D04S001
Owners Manual
Page 72
...; If two or more memory modules are detected. LED Power Button Problem Description No memory modules are installed, remove the modules (see your service manual) and restart the computer. If the computer starts normally, continue to install additional memory modules (one module (see your computer. Power Button Problem ... all power and data cables. LED Power Button • If available, install working memory of the same type into your service manual), then reinstall one at a time) until you have identified a faulty module or reinstalled all modules without error. 72
...; If two or more memory modules are detected. LED Power Button Problem Description No memory modules are installed, remove the modules (see your service manual) and restart the computer. If the computer starts normally, continue to install additional memory modules (one module (see your computer. Power Button Problem ... all power and data cables. LED Power Button • If available, install working memory of the same type into your service manual), then reinstall one at a time) until you have identified a faulty module or reinstalled all modules without error. 72
Owners Manual
Page 85
...light Drive activity light Diagnostic lights Back of the computer. Solid blue light indicates power-on the diagnostic lights, see the Service Manual at the back 85 Blinking blue light indicates that the computer is functional. Four lights located on and is reading data from or... writing data to the power connector (at support.dell.com/manuals. Solid amber light when the computer does not start indicates a problem with the system board. The power supply is turned on...
...light Drive activity light Diagnostic lights Back of the computer. Solid blue light indicates power-on the diagnostic lights, see the Service Manual at the back 85 Blinking blue light indicates that the computer is functional. Four lights located on and is reading data from or... writing data to the power connector (at support.dell.com/manuals. Solid amber light when the computer does not start indicates a problem with the system board. The power supply is turned on...