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What to do if Beep sound is coming from your computer :
There are multiple reasons for this kind of Beep sound issue. So in this post, we will learn the causes of a beeping PC and what are the solutions for each kind beep !
Before starting with the Beep sound error we need to learn a small topic – “POST“.
POST stands for Power-On Self-Test.
POST is the diagnostic testing sequence that runs to determine if the computer is working properly.
POST tests the computer parts such as :
– Keyboard
– RAM
– Disk drives
– Other hardware
If the necessary hardware is working fine, the computer begins to boot.
If not, then BIOS issues an error in two ways:
– Error message is displayed.
– Series of computer beeping sounds
Depending on the type of error it is divided into two types:
Fatal Error
– A fatal error halts the boot process immediately.
* Example: No system memory is found.
– POST tests a vital system component, that’s why most POST boot errors are fatal.
Non-Fatal Error
– Booting process doesn’t stop when it encounters non-fatal error.
– It displays an error on the screen.
How to solve Chassis Intruded Fatal Error..!
Solving chassis intruded fatal error system halted:
– Switch off the computer power and open the system case.
– Clear CMOS by removing the CMOS battery.
– Switch on the computer and go to the BIOS setup.
– Re-configure the BIOS settings to default and Save Changes & Exit.
– After the reboot, computer should start normally.
Identifying Beep Codes
Computer POST and BEEP Codes
- When the computer starts it performs a Power-On Self-test (POST).
- Problems occurred during booting are either displayed on screen or the computer gives beep sounds.
- Beep sounds may also be due to wrong connection or loose connection.
- This sound is generated from motherboard internal speaker.
- Many BIOS will have different BEEP codes even if they are from the same manufacturers.
Beep Codes and their reasons:
| 1 short beep DRAM refresh failure | |
| 2 short beep Parity circuit failure | |
| 3 short beep Base 64K RAM failure | |
| 4 short beep System timer failure | |
| 5 short beep Process failure | |
| 6 short beep Keyboard controller Gate A20 error | |
| 7 short beep Virtual mode exception error | |
| 8 short beep Display memory Read/Write test failure | |
| 9 short beep ROM BIOS checksum failure | |
| 10 short beep CMOS shutdown Read/Write error | |
| 11 short beep Cache memory error | |
| 1 long 3 short beep Conventional/Extended memory failure | |
| 1 long 8 short beep Display/Retrace test failure | |
| Two-tone siren (2 long) Low CPU Fan speed, Voltage Level issue |
- If any peripheral is loosely connected then it has a continuous short beeps.
EX: If a printer/scanner is loosely connected to a parallel or USB port then it will give continuous short beeps.
How to troubleshoot computer beeping with Beep Codes…….!
- Turn on or restart the computer.
- when the computer begins to boot , listen to the beep codes carefully. Restart the computer to hear the the beeping again.
- Note down the pattern of the beeps.
- This will help to determine the issues the beep codes are representing.
- Depending on the BIOS manufacturer, the solution will differ for the beep code.
- Choose the correct beep code troubleshooting guide.
