Beep Symptoms

Beep Symptoms

Beep symptoms are short tones or a series of short tones separated by pauses (intervals without sound). See the following examples.

Beeps	Description
1-2-X	One beep
	A pause (or break)
	Two beeps
	A pause (or break)
	Any number of beeps
4	Four beeps

Beep/Symptom	FRU/Action
1-1-3	1. Run Setup
CMOS read/write error	2. System Board
1-1-4	1. System Board
ROM BIOS check error
1-2-X	1. System Board
DMA error
1-3-X	1. Memory Module
	2. System Board
1-3-4	1. Memory Types Mixed
	- unbuffered & registered
2-1-1, 2-1-2	1. Run Setup
	2. System Board
2-1-X	1. Memory Module
First 64 KB of RAM failed.	2. System Board
2-2-2	1. Video Adapter (if installed)
	2. System Board
2-2-X	1. Memory Module
First 64 KB of RAM failed.	2. System Board
2-3-X	1. Memory Module
	2. System Board
3-1-X	1. System Board
DMA register failed.
3-2-4	1. System Board
Keyboard controller failed.	2. Keyboard
One Beep	1. N/A
(POST completed successfully or
an incorrect password was entered)
Two Short Beeps	1. Run Diagnostics
(POST encountered an error)
Three Short Beeps	1. Dual Inline Memory Module
	2. Microprocessor
	3. System Board
One Continuous Beep	1. Optional Microprocessor (if installed)
	2. Microprocessor
	3. System Board
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
One Long and Three Short Beeps	1. Verify monitor connections
(Monitor not connected)	2. Video adapter (if present)
	3. System Board
Two Long and Two Short Beeps	1. Video adapter
(Video adapter not supported)