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Diagnostic error code FRU/Action
305-000-XXX Monitor DDC test passed
No action
305-250-XXX Monitor DDC self test failure 1. Run Setup to enable DDC
2. Cable
3. Monitor
4. Video card
5. System board
415-000-XXXModem test Passed No action
415-XXX-XXX Modem error 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 table describes beep symptoms.
Beep symptom FRU/Action
1, 2, or 3 beeps
Reseat the memory modules. If the error persists, replace
the memory modules one at a time until the failing module
is determined.
4, 5, 6, or 7 beeps9, 10, or 11 beeps
Before replacing the system board, remove any optional
adapters (Express card, Modem card, Media reader) and
retry. If the problem persists, replace the system board.
Otherwise, reinstall the optional adapters one at a time
until the failing adapter is determined.
8 beeps Replace the system board.
POST error codes
Each time you power-on the system, it performs a series of tests that check the operation of the system and
some options. This series of tests is called the Power-On Self-Test, or POST.
The POST does the following operations:
• Checks some basic system-board operations
• Checks the memory operation
• Starts the video operation
• Veries that the boot drive is working
If the POST detects a problem, an error message appears on the screen. A single problem can cause several
error messages to appear. When you correct the cause of the rst error message, the other error messages
probably will not appear on the screen the next time you turn on the system.
Chapter 7. Symptom-to-FRU index 61