Dell Technology Guide
Page 275
...display the current status of the lights to complete the boot routine three consecutive times for the same error (see "Contacting Dell" on page 337 for assistance). C P U F A N F A I L U R E - Replace the CPU fan (see the documentation for either the operating system or the program that was running when the message appeared.... D - Diagnostic Lights for Laptop Computers Typically laptop computers have keyboard status lights located above the keyboard. The computer failed to help identify the problem. Possible motherboard failure or RTC battery low. ALERT! Troubleshooting 275
...display the current status of the lights to complete the boot routine three consecutive times for the same error (see "Contacting Dell" on page 337 for assistance). C P U F A N F A I L U R E - Replace the CPU fan (see the documentation for either the operating system or the program that was running when the message appeared.... D - Diagnostic Lights for Laptop Computers Typically laptop computers have keyboard status lights located above the keyboard. The computer failed to help identify the problem. Possible motherboard failure or RTC battery low. ALERT! Troubleshooting 275
Setup Guide
Page 40
...motherboard failure or RTC battery low. CPU fan failure - Hard-disk drive failure - Hard-disk drive read failure - Keyboard failure - See the Service Manual on the Dell Support website at support.dell.com or see "Contacting Dell" on the Dell Support website at booting this checkpoint and contact Dell Technical Support - Replace...same error see "Contacting Dell" on page 52 for assistance. CMOS checksum error - Replace the battery. Possible hard disk drive failure during POST, see "Contacting Dell" on the Dell Support website at support.dell.com. Possible hard disk ...
...motherboard failure or RTC battery low. CPU fan failure - Hard-disk drive failure - Hard-disk drive read failure - Keyboard failure - See the Service Manual on the Dell Support website at support.dell.com or see "Contacting Dell" on the Dell Support website at booting this checkpoint and contact Dell Technical Support - Replace...same error see "Contacting Dell" on page 52 for assistance. CMOS checksum error - Replace the battery. Possible hard disk drive failure during POST, see "Contacting Dell" on the Dell Support website at support.dell.com. Possible hard disk ...