True story - We had a local customer whose computer was beeping constantly through its PC speaker, even though it seemed to be working perfectly. Our customer happened to be a retired navy man who knew Morse code very well. After a couple hours of listening to the beeping he found two Morse code messages that he believed we overlaid on top of one and other. According to our customer, the messages were "Why aren't you listening to me" and "Can't you hear me."
While we would never doubt the sincerity of one of our customers, typically BIOS beep codes are pretty simple to figure out. Use the charts below to learn what your computer is trying to tell you when it seems to be beeping uncontrollably.
BEEPS
|
ERROR
DESCRIPTION |
1 Short
|
Completely normal, no errors detected.
|
2
Short |
Initialization Error, DMA,
ROM, Floppy, Serial or Parallel |
1
Long, 1 Short |
Motherboard malfunction
|
1
Long, 2 Short |
Video card malfunction
or problem with video RAM |
1
Long, 3 Short |
Video card malfunction
|
No
Beeping |
Bad power supply or system
board (or no PC speaker hooked up) |
Continuous
Beeping |
Bad power supply, processor,
or system board |
Repeating
Short |
Bad power supply, processor,
or system board |
AMERICAN MEGATRENDS
(AMI) BEEP CHART
BEEPS
|
ERROR
DESCRIPTION |
1 Beep
|
Memory
timing error |
2 Beeps
|
Mismatched
memory parity |
3 Beeps
|
Memory
malfunction |
4 Beeps
|
Motherboard
malfunction |
5 Beeps
|
Bad
CPU |
6 Beeps
|
Keyboard
controller error |
7 Beeps
|
General
exception error |
8 Beeps
|
Video
memory error |
9 Beeps |
Bad
ROM checksum |
10 Beeps
|
CMOS
error |
11 Beeps
|
Bad
cache RAM |
AWARD BIOS BEEP CHART
BEEPS
|
ERROR
DESCRIPTION |
1 Long
|
Memory
malfunction |
1 Long 2 Short
|
Video
malfunction |
1 Long 3 Short
|
Video/motherboard
malfunction |
Continuous
Beeping |
Memory or video malfunction
|
Other
Beeps |
Bad system RAM
|