Dell Technology Guide
Page 275
... message appeared. The computer failed to complete the boot routine three consecutive times for the same error (see "Contacting Dell" on page 337 for assistance). C M O S C H E C K S U M E R R O R - D I S K R E A D F A I L U R E - Possible motherboard failure or RTC battery low. Replace the battery (see the documentation shipped with your computer or search for the topic on page 337 for the topic...
... message appeared. The computer failed to complete the boot routine three consecutive times for the same error (see "Contacting Dell" on page 337 for assistance). C M O S C H E C K S U M E R R O R - D I S K R E A D F A I L U R E - Possible motherboard failure or RTC battery low. Replace the battery (see the documentation shipped with your computer or search for the topic on page 337 for the topic...
Setup Guide
Page 34
...was running when the message appeared. Alert! See the Service Manual on the Dell Support website at support.dell.com or see "Contacting Dell" on page 46 for assistance. Keyboard failure or loose cable. Replace the CPU fan. Hard-disk drive read failure - CMOS checksum error -...computer failed to resolve the issue. Or see "Contacting Dell" on page 46 for assistance. Previous attempts at booting this checkpoint and contact Dell Technical Support - Keyboard failure - CPU fan has failed. Possible motherboard failure or RTC battery low. Using Support Tools System Messages...
...was running when the message appeared. Alert! See the Service Manual on the Dell Support website at support.dell.com or see "Contacting Dell" on page 46 for assistance. Keyboard failure or loose cable. Replace the CPU fan. Hard-disk drive read failure - CMOS checksum error -...computer failed to resolve the issue. Or see "Contacting Dell" on page 46 for assistance. Previous attempts at booting this checkpoint and contact Dell Technical Support - Keyboard failure - CPU fan has failed. Possible motherboard failure or RTC battery low. Using Support Tools System Messages...