Dell Technology Guide
Page 275
... during HDD boot test (see the Service Manual for assistance). Replace the CPU fan (see "Contacting Dell" on page 337 for the topic on the Dell Support website support.dell.com. Troubleshooting 275 Diagnostic Lights for more details. The computer failed... 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 C A L S U P P O R T - CPU fan failure. H A R D - If the computer malfunctions, you received is not listed in the table, see "Contacting Dell" on page 337 for your computer or search for assistance).
... during HDD boot test (see the Service Manual for assistance). Replace the CPU fan (see "Contacting Dell" on page 337 for the topic on the Dell Support website support.dell.com. Troubleshooting 275 Diagnostic Lights for more details. The computer failed... 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 C A L S U P P O R T - CPU fan failure. H A R D - If the computer malfunctions, you received is not listed in the table, see "Contacting Dell" on page 337 for your computer or search for assistance).