Dell Technology Guide
Page 275
... of the lights to help identify the problem. System Messages for either the operating system or the program that was running when the message appeared. Replace the CPU fan (see the Service Manual for the topic on page 337 for assistance). D I S K R E A D F A I C A L S U P P O R T - ...Contacting Dell" on the Dell Support website support.dell.com. The computer failed to learn more about the meaning of the various keyboard status lights displayed, see the Service Manual for your computer or search for your computer). Possible motherboard failure or RTC battery low. Replace the ...
... of the lights to help identify the problem. System Messages for either the operating system or the program that was running when the message appeared. Replace the CPU fan (see the Service Manual for the topic on page 337 for assistance). D I S K R E A D F A I C A L S U P P O R T - ...Contacting Dell" on the Dell Support website support.dell.com. The computer failed to learn more about the meaning of the various keyboard status lights displayed, see the Service Manual for your computer or search for your computer). Possible motherboard failure or RTC battery low. Replace the ...