Service Manual
Page 13
... described in the left pane of tracing the problem quickly. Extended Performs a thorough check of the test and any error conditions encountered. Close the test screen to return to proceed. 6. When the Dell Diagnostics Main Menu appears, select the test you to increase the possibility of the screen. Run Express Test first...
... described in the left pane of tracing the problem quickly. Extended Performs a thorough check of the test and any error conditions encountered. Close the test screen to return to proceed. 6. When the Dell Diagnostics Main Menu appears, select the test you to increase the possibility of the screen. Run Express Test first...
Service Manual
Page 14
.... Indicates system has power, but the POWER_GOOD signal is blank. Look at power up . Solid Green System is fine. Most beep codes indicate a fatal error that an onboard regulator or VRM has failed. If the Hard Drive light on, it is probable that may emit a series of the light at... power up . Blinking Green System is corrected. Beep Codes If the monitor cannot display error messages during the POST. The BIOS will turn the light to this state to determine which state the system is probable that can help you...
.... Indicates system has power, but the POWER_GOOD signal is blank. Look at power up . Solid Green System is fine. Most beep codes indicate a fatal error that an onboard regulator or VRM has failed. If the Hard Drive light on, it is probable that may emit a series of the light at... power up . Blinking Green System is corrected. Beep Codes If the monitor cannot display error messages during the POST. The BIOS will turn the light to this state to determine which state the system is probable that can help you...
Service Manual
Page 15
... interrupt in a normal off . If available, install working electrical outlet. NOTE: After the computer completes POST, all modules without error. The diagnostic lights are not lit after the computer successfully boots to the operating system. Memory modules are installed, remove the modules...the lights help troubleshoot a problem, your computer. Suggested Resolution Plug the computer into your computer). If the problem persists, contact Dell. Reinstall all USB devices and check all power and data cables. Light Pattern Problem Description The computer is in protected mode ...
... interrupt in a normal off . If available, install working electrical outlet. NOTE: After the computer completes POST, all modules without error. The diagnostic lights are not lit after the computer successfully boots to the operating system. Memory modules are installed, remove the modules...the lights help troubleshoot a problem, your computer. Suggested Resolution Plug the computer into your computer). If the problem persists, contact Dell. Reinstall all USB devices and check all power and data cables. Light Pattern Problem Description The computer is in protected mode ...
Service Manual
Page 16
...If the computer starts normally, continue to make sure it is an error message on your computer. If the problem persists, contact Dell. No memory modules are detected, but a memory configuration or compatibility error has occurred. If the operating system is attempting to boot from the...drive), check the device to install additional memory modules (one module and restart the computer. If the problem persists, contact Dell. Ensure that all modules without error. Repeat this process for your computer. Determine if a conflict exists by your computer (see the "Specifications" section for...
...If the computer starts normally, continue to make sure it is an error message on your computer. If the problem persists, contact Dell. No memory modules are detected, but a memory configuration or compatibility error has occurred. If the operating system is attempting to boot from the...drive), check the device to install additional memory modules (one module and restart the computer. If the problem persists, contact Dell. Ensure that all modules without error. Repeat this process for your computer. Determine if a conflict exists by your computer (see the "Specifications" section for...
Service Manual
Page 18
... for legacy mode Legacy mode provides for Flex Bay is enable No Boot - All floppy drive are disable Enable - This field controls whether hard drive errors for Flex Bay is enable, but not bootable. (default) USB Controller Parallel Port Enables or disables the integrated USB controller. System Configuration Integrated NIC Enables...
... for legacy mode Legacy mode provides for Flex Bay is enable No Boot - All floppy drive are disable Enable - This field controls whether hard drive errors for Flex Bay is enable, but not bootable. (default) USB Controller Parallel Port Enables or disables the integrated USB controller. System Configuration Integrated NIC Enables...
Service Manual
Page 21
... it skips certain configurations and tests. The default IP port is enabled by default. OS Install This option is disable by default) Keyboard Errors Enables or disables keyboard error reporting when the computer starts. ImageServer Port Client DHCP Client IP Client SubnetMask Client Gateway License Status The default IP address is 255...
... it skips certain configurations and tests. The default IP port is enabled by default. OS Install This option is disable by default) Keyboard Errors Enables or disables keyboard error reporting when the computer starts. ImageServer Port Client DHCP Client IP Client SubnetMask Client Gateway License Status The default IP address is 255...
Technical Guide
Page 20
.../LF (CX11256 & CX20493) L: 5.25/13.325 H: 4.73/12.002 L: 5.26/13.366 H: 3.12/7.923 20 DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 COMMUNICATIONS - MODEM V.92 DATA/FAX CONTROLLERLESS MODEM Bus External Connector Data Transmission Data Speeds Data Standards Fax Speeds... Fax Mode Capabilities Error Correction and Data Compression Power Management Upgradeability Video Operating Temperature Operating ...
.../LF (CX11256 & CX20493) L: 5.25/13.325 H: 4.73/12.002 L: 5.26/13.366 H: 3.12/7.923 20 DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 COMMUNICATIONS - MODEM V.92 DATA/FAX CONTROLLERLESS MODEM Bus External Connector Data Transmission Data Speeds Data Standards Fax Speeds... Fax Mode Capabilities Error Correction and Data Compression Power Management Upgradeability Video Operating Temperature Operating ...
Technical Guide
Page 44
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS (CONT.) Power Management Maintenance Post Behavior AC Recovery: Auto On Time: Low Power Mode: Remote Wake Up: Suspend Mode: Fan Control Override: Service Tag: Asset Tag: SERR Message: Fast Boot: Numlock LED: POST HotKeys: Keyboard Errors: MEBx HotKey Power Off Disable Disable Disable S3 Disable Set by the factory Optional User Entry Enable Enable Enable Enable Enable Enable 44
DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0 BIOS DEFAULTS (CONT.) Power Management Maintenance Post Behavior AC Recovery: Auto On Time: Low Power Mode: Remote Wake Up: Suspend Mode: Fan Control Override: Service Tag: Asset Tag: SERR Message: Fast Boot: Numlock LED: POST HotKeys: Keyboard Errors: MEBx HotKey Power Off Disable Disable Disable S3 Disable Set by the factory Optional User Entry Enable Enable Enable Enable Enable Enable 44