User Manual
Page 8
... must be connected during this test. 8 When the system power supply voltage 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. Blinking blue light indicates that the computer is within... health of the computer. Solid blue light indicates power-on and is functional. Diagnostic lights Four lights located on the diagnostic lights, see the Service Manual at the back of the computer.
... must be connected during this test. 8 When the system power supply voltage 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. Blinking blue light indicates that the computer is within... health of the computer. Solid blue light indicates power-on and is functional. Diagnostic lights Four lights located on the diagnostic lights, see the Service Manual at the back of the computer.
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
... Troubleshooting Steps LED A possible hard drive failure has occurred. 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 LED Power Button Problem Description No memory... modules are 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.
... Troubleshooting Steps LED A possible hard drive failure has occurred. 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 LED Power Button Problem Description No memory... modules are 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.
Owners Manual
Page 85
... functional. Blinking amber light indicates a problem with the system board or power supply. Four lights located on the diagnostic lights, see the Service Manual at the back 85 Green light - The power supply is turned on state; The power cable must be connected to the hard drive. Solid... blue light indicates power-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. System Board Connectors Small Form Factor Password ...
... functional. Blinking amber light indicates a problem with the system board or power supply. Four lights located on the diagnostic lights, see the Service Manual at the back 85 Green light - The power supply is turned on state; The power cable must be connected to the hard drive. Solid... blue light indicates power-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. System Board Connectors Small Form Factor Password ...