Beep Symptoms - Lenovo ThinkCentre 7515 Hardware Maintenance Manual
Machine types: 7515, 7522, 7523, 7560, 7569, 7610, 7611, and 7705
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Also See for ThinkCentre 7515:
- User manual (94 pages) ,
- User manual (92 pages) ,
- Maintenance manual (394 pages)
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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.
Diagnostic error code
415-XXX-XXX
Modem error
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
Continuos long beeps
DRAM memory error
FRU/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 51.
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 278.
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 program," on page 51.
2. Perform a Boot-block recovery. See
"Recovering from a POST/BIOS update
failure" on page 278.
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
77
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