Beep codes
The following table describes the most common beep pattern and their corresponding fault description:
NOTE The computer emits a beep sound corresponding to the fault condition shown in the table below. The repeated beep pattern has a long pause in between the beep codes.
NOTE To hear the beep codes, connect a speaker to the audio line-out connector on your computer.
Table 1. Beep code patterns This table describes the beep patterns and corresponding description.
Beep codes
|
Problem description
|
1
|
System board: BIOS, ROM failure
|
2
|
No memory/RAM detected
|
3
|
System board, Chipset error, Clock failure, Gate A20 failure, Super I/O failure, Keyboard controller failure
|
4
|
Memory/RAM failure
|
5
|
CMOS battery failure
|
6
|
Video card/chip failure
|
7
|
CPU failure
|