Service Manual
Page 4
... click the arrow in this document may require the following tools: Small flat-blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update program CD (see the Dell Support website at support.dell.com) Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and exit all open...
... click the arrow in this document may require the following tools: Small flat-blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update program CD (see the Dell Support website at support.dell.com) Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and exit all open...
Service Manual
Page 15
...troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. If the problem persists, contact Dell. If available, install working memory of -day clock stopped Serial or parallel port test failure Failure to decompress code to shadowed memory Math-...help to the operating system. If the problem persists, contact Dell . A possible USB failure has occurred. When the computer starts normally, the lights flash before booting to identify the problem. If the problem persists, contact Dell. Reseat any installed graphics cards. A possible floppy drive ...
...troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. If the problem persists, contact Dell. If available, install working memory of -day clock stopped Serial or parallel port test failure Failure to decompress code to shadowed memory Math-...help to the operating system. If the problem persists, contact Dell . A possible USB failure has occurred. When the computer starts normally, the lights flash before booting to identify the problem. If the problem persists, contact Dell. Reseat any installed graphics cards. A possible floppy drive ...
Service Manual
Page 17
...in this key, press when the keyboard lights first flash. If you are attempting to boot to a particular device or to bring up the diagnostics for the system. 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 System Setup Simulation System Setup Menu Options Boot Menu Press when the Dell™ logo appears to initiate a one ...
...in this key, press when the keyboard lights first flash. If you are attempting to boot to a particular device or to bring up the diagnostics for the system. 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 System Setup Simulation System Setup Menu Options Boot Menu Press when the Dell™ logo appears to initiate a one ...
Service Manual
Page 22
Follow the procedures in Before Working Inside Your Computer. 2. Pull back the cover release latch. Removing the Cover NOTE: You may need to install Adobe Flash Player from Adobe.com to Contents Page Cover Dell™ OptiPlex™ 780 Service Manual-Desktop WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Back to view the following illustrations. 1.
Follow the procedures in Before Working Inside Your Computer. 2. Pull back the cover release latch. Removing the Cover NOTE: You may need to install Adobe Flash Player from Adobe.com to Contents Page Cover Dell™ OptiPlex™ 780 Service Manual-Desktop WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Back to view the following illustrations. 1.