Lenovo ThinkCentre A62 Hardware Maintenance Manual - Page 67

Diagnostic Error Code 305-000-XXX Monitor DDC Test Passed 305-250-XXX Monitor DDC self test failure 415-000-XXXModem Test Passed 415-XXX-XXX Modem error FRU/Action No action 1. Run Setup to enable DDC 2. Cable 3. Monitor 4. Video card 5. System board No action Remove the Modem and re-test the system Beep symptoms Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST. The following tables describes beep symptoms. Beep Symptom 2 short beeps CMOS setting error 1 long and 2 short beeps Monitor or video adapter card error 1 long and 3 short beeps Keyboard error 1 long and 9 short beeps BIOS ROM error One long beep loop DRAM memory error FRU/Action Perform the following actions in order. 1. Start the Setup Utility program and press F10 to Save and exit. See Chapter 6 "Using the Setup Utility" on page 39. 2. Start the Setup Utility program and press F7 to load defaults and then press F10 to Save and exit. 3. Perform a Boot block recovery. See "Recovering from a POST/BIOS update failure" on page 468. Perform the following actions in order. 1. Make sure the monitor is properly connected to the computer. 2. Replace the video adapter card (if present). 3. Replace the system board. Perform the following actions in order. 1. Make sure the keyboard is properly connected to the keyboard connector. 2. Replace the keyboard. 3. Replace the system board. Perform the following actions in order. 1. Start the Setup Utility program and press F7 to load defaults and then press F10 to Save and exit. See Chapter 6 "Using the Setup Utility" on page 39. 2. Perform a Boot block recovery. See "Recovering from a POST/BIOS update failure" on page 468. 3. Replace the system board. Perform the following actions in order. 1. Make sure the memory module(s) are properly seated in the connector(s). 2. Replace the memory module(s). 3. Replace the system board. Chapter 7 Symptom-to-FRU Index 61