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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 the Setup Utility program 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 tables describes beep symptoms.
Beep Symptom FRU/Action
2 short 1 long 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 turn on your computer, it performs a series of tests to check the operation of the computer
components and some optional devices in the computer. 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 is displayed on the screen. A single problem can cause
several error messages. When you correct the cause of the rst error message, the other error messages
probably will not be displayed the next time you turn on the computer.
Chapter 7. Symptom-to-FRU index 63