Lenovo THINKCENTRE 8177 - Manual (Page 89)

Beep Symptom FRU/Action
2-2-4 CMOS configuration info validation
failed
1. Battery
2. System Board
2-3-1 Screen initialization failed
1. Jumper on J28
2. System Board
2-3-2 Screen memory failed System board
2-3-3 Screen retrace failed System board
1-2 Search for video ROM failed System board
All other beep code sequences System board
Continuous beep System Board
Repeating short beeps
1. Keyboard stuck key
2. Keyboard Cable
3. System Board
Chapter 7. Symptom-to-FRU Index 83