Beep Symptoms - Lenovo ThinkCentre Hardware Maintenance Manual

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

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
FRU/Action
No action
1. Run the Setup Utility program to enable DDC.
2. Cable
3. Monitor
4. Video card
5. System board
No action
Remove the Modem and re-test the system.
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
program" on page 37.
2. Start the Setup Utility program and press F9 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 252.
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 F9 to load
defaults and then press F10 to Save and exit. See
Chapter 6 "Using the Setup Utility program" on page
37.
2. Perform a Boot block recovery. See "Recovering
from a POST/BIOS update failure" on page 252.
3. Replace the system board.
Chapter 7
.
Symptom-to-FRU Index
59