Dell Technology Guide
Page 275
... A N D C O N T A C T D E L L TE C H N I C A L S U P P O R T - Possible HDD failure during HDD boot test (see "Contacting Dell" on page 337 for assistance). Diagnostic Lights for your computer). Possible motherboard failure or RTC battery low. FOR MORE INFORMATION: to help identify the problem. System Messages for Desktop Computers NOTE: If...see the Service Manual for your computer or search for the topic on the Dell Support website support.dell.com. C M O S C H E C K S U M E R R O R - Replace the battery (see the documentation shipped with your computer for either the operating...
... A N D C O N T A C T D E L L TE C H N I C A L S U P P O R T - Possible HDD failure during HDD boot test (see "Contacting Dell" on page 337 for assistance). Diagnostic Lights for your computer). Possible motherboard failure or RTC battery low. FOR MORE INFORMATION: to help identify the problem. System Messages for Desktop Computers NOTE: If...see the Service Manual for your computer or search for the topic on the Dell Support website support.dell.com. C M O S C H E C K S U M E R R O R - Replace the battery (see the documentation shipped with your computer for either the operating...