User Manual
Page 8
...power cable must be defective. When the system power supply voltage 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 connected during this test. 8 Back of the power system by ...diagnostic light comes on the front panel of the computer) and the electrical outlet. For more information on the diagnostic lights, see the Service Manual at the back of the computer. blinking blue light indicates sleep state of computer: Power button light Blue light - Blinking amber light indicates a...
...power cable must be defective. When the system power supply voltage 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 connected during this test. 8 Back of the power system by ...diagnostic light comes on the front panel of the computer) and the electrical outlet. For more information on the diagnostic lights, see the Service Manual at the back of the computer. blinking blue light indicates sleep state of computer: Power button light Blue light - Blinking amber light indicates a...
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 the computer starts normally, continue to install additional memory modules (one module (see your service manual), then reinstall one at a time) until you have identified a faulty module or reinstalled all modules without error. 72 Re-seat all cable ... installed, remove the modules (see your computer. LED Power Button • If available, install working memory of the same type into your service manual) and restart the computer. Power Button Problem Description A possible USB failure has occurred. Troubleshooting Steps Re-install all USB devices and check all power...
If the computer starts normally, continue to install additional memory modules (one module (see your service manual), then reinstall one at a time) until you have identified a faulty module or reinstalled all modules without error. 72 Re-seat all cable ... installed, remove the modules (see your computer. LED Power Button • If available, install working memory of the same type into your service manual) and restart the computer. Power Button Problem Description A possible USB failure has occurred. Troubleshooting Steps Re-install all USB devices and check all power...
Owners Manual
Page 85
... when the computer does not start indicates a problem with the system board. Four lights located on the diagnostic lights, see the Service Manual at the back 85 Blinking amber light indicates a problem with the system board or power supply. For more information on the front panel...Back of the computer. Blinking blue light indicates that the computer is reading data from or writing data to the power connector (at support.dell.com/manuals. Green light - Amber light - Blue light - The power supply is functional. blinking blue light indicates sleep state of the computer. ...
... when the computer does not start indicates a problem with the system board. Four lights located on the diagnostic lights, see the Service Manual at the back 85 Blinking amber light indicates a problem with the system board or power supply. For more information on the front panel...Back of the computer. Blinking blue light indicates that the computer is reading data from or writing data to the power connector (at support.dell.com/manuals. Green light - Amber light - Blue light - The power supply is functional. blinking blue light indicates sleep state of the computer. ...