Dell Technology Guide
Page 275
... website support.dell.com. C M O S C H E C K S U M E R R O R - Replace the CPU fan (see "Contacting Dell" on page 337 for more details. Troubleshooting 275 If the computer malfunctions, you received is not listed in the table, see "Contacting Dell" on page 337 for assistance). C P U F A N F A I C A L S U P P O R T - ALERT! FOR HELP IN RESOLVING THIS PROBLEM, PLEASE NOTE THIS C H E C K P O I N T A N D C O N T A C T D E L L TE C H N I L U R E - Possible motherboard failure or RTC...
... website support.dell.com. C M O S C H E C K S U M E R R O R - Replace the CPU fan (see "Contacting Dell" on page 337 for more details. Troubleshooting 275 If the computer malfunctions, you received is not listed in the table, see "Contacting Dell" on page 337 for assistance). C P U F A N F A I C A L S U P P O R T - ALERT! FOR HELP IN RESOLVING THIS PROBLEM, PLEASE NOTE THIS C H E C K P O I N T A N D C O N T A C T D E L L TE C H N I L U R E - Possible motherboard failure or RTC...