Service Manual
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... appears, highlight Boot to wait until you see the Microsoft® Windows® desktop. Back to Contents Page Diagnostics Dell™ OptiPlex™ 780 Service Manual Dell Diagnostics Power Button Light Codes Beep Codes Diagnostic Lights Dell Diagnostics When to Use the Dell Diagnostics It is recommended that you print these procedures before you want to test displays in the system setup program...
... appears, highlight Boot to wait until you see the Microsoft® Windows® desktop. Back to Contents Page Diagnostics Dell™ OptiPlex™ 780 Service Manual Dell Diagnostics Power Button Light Codes Beep Codes Diagnostic Lights Dell Diagnostics When to Use the Dell Diagnostics It is recommended that you print these procedures before you want to test displays in the system setup program...
Service Manual
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... Results Displays the results of the problem. Errors Displays error conditions encountered, error codes, and the problem description. The device list may indicate requirements for running the Dell Diagnostics from the menu that appears and press . 5. Close the test screen to return... to your computer or all the components installed on the screen. 3. Power Button Light Codes The diagnostic lights give much more information. ...
... Results Displays the results of the problem. Errors Displays error conditions encountered, error codes, and the problem description. The device list may indicate requirements for running the Dell Diagnostics from the menu that appears and press . 5. Close the test screen to return... to your computer or all the components installed on the screen. 3. Power Button Light Codes The diagnostic lights give much more information. ...
Service Manual
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Power is off , it is probable that the power supply is corrected. Look at the diagnostic lights for further information. Blinking Green System is blank. Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM read/write failure 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer failure 1-2-2 DMA... a series of the light at power up . If the Hard Drive light on, it has started fetching op-codes. Look at the diagnostic lights for further information. Indicates system has power, but the POWER_GOOD signal is in a low power state, either S1...
Power is off , it is probable that the power supply is corrected. Look at the diagnostic lights for further information. Blinking Green System is blank. Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM read/write failure 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer failure 1-2-2 DMA... a series of the light at power up . If the Hard Drive light on, it has started fetching op-codes. Look at the diagnostic lights for further information. Indicates system has power, but the POWER_GOOD signal is in a low power state, either S1...
Service Manual
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...or a possible pre-BIOS failure has occurred. If the computer starts normally, continue to identify the problem. If the problem persists, contact Dell. If available, install a working memory of the same type into your computer. A possible processor failure has occurred. Reseat the processor (see... counter 2 failure Time-of-day clock stopped Serial or parallel port test failure Failure to decompress code to shadowed memory Math-coprocessor test failure Cache test failure Diagnostic Lights To help to install additional memory modules (one module and restart the computer. If the problem...
...or a possible pre-BIOS failure has occurred. If the computer starts normally, continue to identify the problem. If the problem persists, contact Dell. If available, install a working memory of the same type into your computer. A possible processor failure has occurred. Reseat the processor (see... counter 2 failure Time-of-day clock stopped Serial or parallel port test failure Failure to decompress code to shadowed memory Math-coprocessor test failure Cache test failure Diagnostic Lights To help to install additional memory modules (one module and restart the computer. If the problem...
Service Manual
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... Setup and make any changes to the boot order stored in the BIOS. Diagnostics and Enter Setup options are also included in the exact same order. The devices...the following information: System information: Displays BIOS Info,, System Info, Service Tag, Express Service Code, Asset Tag, Manufacture Date, and the Ownership Date.. System Setup Menu Options NOTE: ..., or +/- < > -Remain in the computer. Back to Contents Page System Setup Dell™ OptiPlex™ 780 Service Manual-Mini-Tower, Desktop, and Small Form Factor Boot Menu Navigation Keystrokes Entering System...
... Setup and make any changes to the boot order stored in the BIOS. Diagnostics and Enter Setup options are also included in the exact same order. The devices...the following information: System information: Displays BIOS Info,, System Info, Service Tag, Express Service Code, Asset Tag, Manufacture Date, and the Ownership Date.. System Setup Menu Options NOTE: ..., or +/- < > -Remain in the computer. Back to Contents Page System Setup Dell™ OptiPlex™ 780 Service Manual-Mini-Tower, Desktop, and Small Form Factor Boot Menu Navigation Keystrokes Entering System...