IBM A40P TYPE 6841, A40I TYPE 2271, A40 TYPE 6840 manual No-beep symptoms

Beep Symptom	FRU/Action
3-3-4	1.	Video Adapter (if installed)
Screen initialization failed
	2.	System Board
		Display
3-4-1	1.	Video Adapter (if installed)
Screen retrace test detected an error
	2.	System Board
	3.	Display
3-4-2	1.	Video Adapter (if installed)
POST is searching for video ROM
	2.	System Board
4	1.	Video Adapter (if installed)
	2.	System Board
All other beep code sequences	1.	System Board
One long and one short beep during POST.	1.	Memory Module
Base 640 KB memory error or shadow RAM
	2.	System Board
error
One long beep and two or three short beeps	1.	Video Adapter (if installed)
during POST.	2.	System Board
(Video error)
Three short beeps during POST	1.	See “System board memory” on page
		30.
	2.	System Board
Continuous beep	1.	System Board
Repeating short beeps	1.	Keyboard stuck key?
	2.	Keyboard Cable
	3.	System Board

No-beep symptoms

Important:

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.

Symptom/Error	FRU/Action
No beep during POST but computer works	1. System Board
correctly.

58Hardware Maintenance Manual A40 Type 6840 A40P Type 6841 A40i Type 2271: IBM NetVista Computer