Lenovo 4229 Post error codes, Beep Symptom FRU/Action, Long and 3 short beeps Keyboard error

The following tables describes beep symptoms.

Beep Symptom	FRU/Action
2 short beeps CMOS setting error	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 106.
1 long and 2 short beeps Monitor or video adapter card	Perform the following actions in order.
error	1.	Make sure the monitor is properly connected to the
		computer.
	2.	Replace the video adapter card (if present).
	3.	Replace the system board.
1 long and 3 short beeps Keyboard error	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.
1 long and 9 short beeps BIOS ROM error	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 106.
	3.	Replace the system board.
1-3-3-1 short beeps DRAM memory error	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.

POST error codes

Each time you Turn 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-OnSelf-Test, or POST. 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 appears on the screen. A single problem can cause several error messages to appear. When you correct the cause of the first error message, the other error messages probably will not appear on the screen the next time you turn on the system.

50ThinkStation Hardware Maintenance Manual