Dell OptiPlex 755 Quick Reference Guide - Page 61

Jumper RTCRST Setting jumpered Description The real-time clock has not been reset. The real-time clock is being reset (jumpered temporarily). unjumpered Solving Problems Dell provides a number of tools to help you if your computer does not perform as expected. For the latest troubleshooting information available for your computer, see the Dell Support website at support.dell.com. If computer problems occur that require help from Dell, write a detailed description of the error, beep codes, or diagnostics light patterns, record your Express Service Code and Service Tag below, and then contact Dell from the same location as your computer. For information on contacting Dell, see your online User's Guide. For an example of the Express Service Code and Service Tag, see "Finding Information" in your computer User's Guide. Express Service Code Service Tag Dell Diagnostics CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in this section and run the Dell Diagnostics before you contact Dell for technical assistance. It is recommended that you print these procedures before you begin. NOTICE: The Dell Diagnostics works only on Dell™ computers. Enter system setup (see "Entering System Setup" in the User's Guide), review your computer's configuration information, and ensure that the device you want to test displays in system setup and is active. Quick Reference Guide 61