Dell Technology Guide
Page 275
... 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 battery low. CPU fan failure. Troubleshooting 275 C M O S C H E C K S U M E R R O R - PREVIOUS ATTEMPTS AT BOOTING THIS SYSTEM HAVE FAILED AT CHECKPOINT [NNNN]. Possible HDD failure during HDD boot test (see "Contacting Dell" on page 337 for assistance). If the computer malfunctions, you...message appeared. Diagnostic Lights for your computer for assistance). System Messages for Desktop Computers NOTE: If the message you can use the status of certain features. C P U F A N F A I L U R...
... 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 battery low. CPU fan failure. Troubleshooting 275 C M O S C H E C K S U M E R R O R - PREVIOUS ATTEMPTS AT BOOTING THIS SYSTEM HAVE FAILED AT CHECKPOINT [NNNN]. Possible HDD failure during HDD boot test (see "Contacting Dell" on page 337 for assistance). If the computer malfunctions, you...message appeared. Diagnostic Lights for your computer for assistance). System Messages for Desktop Computers NOTE: If the message you can use the status of certain features. C P U F A N F A I L U R...