IBM 343 manual Post Error Beep Codes, BMC Generated Post Beep Codes, Code Description FRU/Action

POST Error Beep Codes

The following tables list POST error beep codes. Prior to system video initialization, The BIOS and BMC use these beep codes to inform users on error conditions

Table 20. BMC Generated POST Beep Codes

Code	Description		FRU/Action
1-5-1-1	FRB failure (processor failure)	1. Processor
			2. System Board
1-5-2-1	Empty Processor	1. Processor
1-5-2-2	No Processor	1. Processor
1-5-4-2	Power fault: DC power unexpectedly lost (power control failures)	1. Power Supply
			2. System Board
1-5-4-3	Chipset control failure	1. System Board
1-5-4-4	Power control failure	1. System Board

Table 21.	BIOS Generated POST Error Beep Codes
Beeps	Error message	Description			FRU/Action
1	Refresh timer failure	The memory refresh circuitry on the				1.	System Board
			motherboard is faulty.
2	Parity error	Parity cannot be reset.			1. Check DIMMs
						2.	System Board
3	Base memory failure	Base memory test failure.		1. Check DIMMs
4	System timer	System timer is not operational.			1. System Board
5	Processor failure	Processor failure detected.			1. Processor
6	Keyboard controller		The keyboard controller may be bad. The			1.	Keyboard
	Gate A20 failure		BIOS cannot switch to protected mode.			2.	System Board
7	Processor exception		The CPU generated an exception interrupt.		1. Processor
	interrupt error					2.	Sytem Board
8	Display memory		The system video adapter is either missing			1.	Video Adapter
	read/write error		or its memory is faulty.	This is not a fatal		2.	System Board
			error.
9	ROM checksum error	System BIOS ROM checksum error.		1. System Firmware
						2.	System Board
10	Shutdown register		Shutdown CMOS register read/write error			1.	System Board
	error		detected.
11	Invalid BIOS	General BIOS ROM error.			1. System Firmware
						2.	System Board

106 xSeries 343 Hardware Maintenance Manual