IBM manual No beep symptoms, IBM xSeries 350 Type 8682 Hardware Maintenance Manual

Beep/Symptom	FRU/Action
Two Short Beeps	1.	Run Diagnostics
(Information only, the configuration	2.	Run Configuration/Setup
has changed)
Three Short Beeps	1.	DIMM
	2.	System Board
One Continuous Beep	1.	Processor
	2.	Optional Processor (if installed)
	3.	System Board
	4.	Service Processor Card
Repeating Short Beeps	1.	Keyboard
	2.	System Board
One Long and One Short Beep	1.	Video adapter (if present)
	2.	System Board
One Long and Two Short Beeps	1.	Video adapter (if present)
	2.	System Board
Two Long and Two Short Beeps	1.	Video adapter

No beep symptoms

No Beep Symptom	FRU/Action
No beep and the system	1.	Diagnostic LED Panel
operates correctly.
No Beeps occur after	1. Run Configuration/Setup, set the Start Options Power-On Status to
successfully completing POST
		enable.
(The Power-On Status is	2.	Diagnostic LED Panel
disabled.)	3.	System Board
No ac power	1. Check the power cord.
(Power supply ac LED is off)	2. Power Supply (If two are installed, swap them to determine if one is
		defective.)
	3.	Power Backplane
No beep and no video	1. See “Undetermined problems” on page 122
System will not power-up	1. See“Power supply LED errors” on page 110
(Power supply ac LED is on)

100IBM xSeries 350 Type 8682: Hardware Maintenance Manual