IBM A40P TYPE 6841, A40I TYPE 2271 manual Symptom-to-FRU Index, SIMM/DIMM/RIMM memory errors

Chapter 6. Symptom-to-FRU Index

SIMM/DIMM/RIMM memory errors. . .	.	.	. 37		No-beep symptoms	.	. . . . .	. 58
Hard disk drive boot error	.	.	.	38	POST error codes	.	. . . . .	.	59
Diagnostic error codes	.	.	.	39	Miscellaneous error messages .	.	. . . . .	.	73
Beep symptoms	.	.	.	57	Undetermined problems . . .	.	. . . . .	.	75

The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first. Always begin with Chapter 1, “General Checkout,” on page 1. This index can also be used to help you decide which FRUs to have available when servicing a computer. If you are unable to correct the problem using this index, go to “Undetermined problems” on page 75.

Notes:

vIf you have both an error message and an incorrect audio response, diagnose the error message first.

vIf you cannot run the diagnostic tests or you get a diagnostic error code when running a test, but did receive a POST error message, diagnose the POST error message first.

vIf you did not receive any error message, look for a description of your error symptoms in the first part of this index.

vCheck all power supply voltages before you replace the system board (see “Power supply” on page 33).

vCheck the hard disk drive jumper settings before you replace a hard disk drive (see “Hard disk drive jumper settings” on page 21).

Important:

Some errors are indicated with a series of beep codes (see “Beep symptoms” on page 57).

Type 2271/6840/6841 computers default to come up quiet (no beep and no memory count and checkpoint code display) when no errors are detected by POST. To enable beep and memory count and checkpoint code display when a successful POST occurs, do the following:

1.Select Start Options in the Configuration/Setup Utility program (see “Setup Utility program” on page 7).

2.Set Power-On Self-Test to Enhanced.

The processor is a separate FRU from the system board; the processor is not included with the system board FRU.

SIMM/DIMM/RIMM memory errors

The following SIMM/DIMM/RIMM error messages are issued by the diagnostic programs.

	Error	FRU/Action
	2xx-1y	Replace the SIMM in the socket identified by
	A memory error was detected in SIMM	the last digit of the error code.
	socket Y.	Re-run the test.
		If the same error code occurs again, replace
		the system board.
© Copyright IBM Corp. 2000		37