Lenovo 5027, 384, 4168, 5067, 7516, 7519, 266, 2491 manual Beep symptoms, Post error codes

Diagnostic Error Code	FRU/Action
305-000-XXXMonitor DDC Test Passed	No action
305-250-XXXMonitor 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-onself-test, or POST. The POST does the following operations:

•Checks some basic system board operations

•Checks the memory operation

•Starts the video operation

•Verifies 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 first 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