PC Restarting Automatically With Repeated Beeps – Quick Fixes

Your PC was working fine and all of a sudden it restarted with constant beeps, this is a sign that there’s something wrong with your hardware. Most often it could be a temporary issue and goes away on its own. But if there are repeated beeps every time you restart your computer, then you have to find the real cause behind this issue.

The good this is, the beep itself tells you what’s wrong with your computer. All you need is to note down the pattern of beeps that you hear when your computer restarts.

What is Beep Code?

Generally, a beep code is an audio signal generated by your computer as a result of a self-diagnostic test known as POST (Power-ON-Self-Test). The role of POST is to make sure that physical memory and other needed hardware are available for the system.

If everything is working fine, then the system will generate a single beep and move on to load the operating system. However, if there is something wrong, then the system will generate a series of beeps depending on the type of issue.

The beeping sequence carries a coded message which corresponds to the type of hardware that is causing the issue.

Before troubleshooting the problem, it’s important to know what type of BIOS your system has on it. Generally, motherboard manufacturers opt for either Phoenix or AMI BIOS. Each of these types has its own pattern of beeps or orange lights pattern to find the source of the problem.

Therefore, it’s important to know which type of BIOS your motherboard has on it before you fix the problem

Common Causes of Beeps/POST Failure

There could be other issues that we will address further down in this guide. But most often, below are some of the most known issues when you hear beeps at system restart.

  • RAM
  • Processor (CPU)
  • Graphics Card
  • Fan


An old or failing DIMM could be one of the reasons behind the constant beeps that you hear when your computer starts. Remove the RAM stick and move it to another free DIMM slot on your motherboard and see if that fixes the issue. If this doesn’t fix the problem, then you’ll have to replace the old RAM stick with a new one.

Processor (CPU)

Overclocking or throwing a lot of load on your CPU could result in an increase in temperature.

When this happens, the system will try to restart itself in order to lower the temperature on the chip. As a result, you could hear multiple beeps as soon as your computer restarts.

Try to use a high-quality cooling solution if you put a lot of workload on your CPU.


Beeps on system startup could be due to the failing BIOS ROM. When this occurs, you’ll have to note down the sequence of beeps to find out the source of the problem. You can learn more about the beep codes at the bottom of this guide.

Graphics Card

If you have recently installed a new graphics card and missed out on connecting the power cables to it, then you’ll be welcomed by frequent beeps. Also, check out if your graphics card is set perfectly in the PCIe x16 slot.

But if you are using an old graphics card, then maybe your graphics card has become faulty and needs to be replaced.


CPU cooling fans may become faulty and end up triggering beeps every time you start your PC. Before you replace the fans, see if the pins are connected properly to your motherboard.

Beep Codes and Their Meaning

This section will help you learn more about the beep codes that you are facing at the system startup. We have divided this section based on the most common BIOS developers on the market.

Phoenix BIOS Beep Codes

Beep PatternWhat’s the Issue / Hardware to Check
1-1-1-1Reseat or replace the RAM sticks
1-1-2-1Get CPU Type
1-1-3-1Initialize chipset registers with initial POST Value
1-1-3-2Set in POST flag
1-2-1-1Initialize power management
1-2-2-1Initialize keyboard controller
1-1-4-3Initialize I/O
1-2-2-3BIOS ROM checksum
1-3-1-1Test DRAM Refresh
1-3-1-3Test keyboard controller
1-4-1-3Test CPU Bus Clock Frequency
2-1-2-1Initialize BIOS Interrupts
2-2-1-3Test Keyboard
2-2-2-3Enable keyboard
3-1-4-1Initialize floppy controller
3-2-1-1Initialize hard disk controller
3-3-1-1Set time of day
3-3-1-3Check key lock
3-4-1-1Check for errors
3-4-1-3Prepare to boot the operating system
4-2-3-1Shutdown error
4-3-2-1Check for forced flash
4-3-2-2Check HW status of ROM
2-4-2-1Test real time clock

Note: 1 represents a long beep whereas 2,3,4 represent shorter beeps

Dell BIOS Beep Codes

Beep Pattern What’s the Issue / Hardware to Check
Single beepCorrupt BIOS ROM
Dual beepsRAM not detected
Three beepsMotherboard failure
Four beepsFailing RAM
Five beepsCMOS battery issue
Six beepsGraphics chip issue
Seven beepsCPU (Processor issue)
Eight beepsLCD Failure

If you are experiencing beeps with different patterns, then you can refer to Dell’s diagnostic page to learn more about this.

Award BIOS Beep Codes

The award uses a different type of beeping pattern to locate the source of the problem.

Beep PatternWhat’s the Issue / Hardware to Check
1 short beepAll system clear, nothing to do
1 long 2 short beepsVideo card issue, check if monitor cables are attached correctly. If nothing works, replace the video card
1 long 3 short beepsCPU failure, overheating, or other issues
1 high-pitch and 1 low-pitch beepCPU failure, overheating or other issues
1 high-pitch beepOverheating CPU
Repeated beepsRAM issue

AMI BIOS Beep Codes

Beep PatternWhat’s the Issue / Hardware to Check
1 short beepDRAM refresh timer error, replace the RAM
2 short beepsParity error needs to replace RAM
3 short beepsBase memory read/write error, need to replace RAM
4 short beepsMotherboard timer not working properly, reseat or replace the desktop memory module
5 short beepsCPU error, try reseating the CPU or any expansion card on your motherboard
6 short beeps8042 Gate A20 test error, could be a faulty motherboard, expansion card, or a keyboard glitch. Try replacing the expansion card or reconnecting your keyboard
7 short beepsGeneral exception error. It could be an expansion card, motherboard or failing CPU
8 short beepsError with faulty video memory. Reseat the video card or replace it to fix this issue
9 short beepsROM checksum error. Occurs due to a bad BIOS chip on the motherboard. The only way to fix this is to replace the motherboard
10 short beepsCMOS shutdown register read/write error. This could be due to an expansion card, but in most cases, you need to replace the motherboard
11 short beepsThe cache memory test failed. This could be due to failing hardware or the motherboard itself
1 long + 2 short beepsFailure within the video memory on a graphics chip. Try to remove and reinstall the video card. If that doesn’t help, then replace the video card
1 long + 3 short beepsFailure above the 64 KB mark. Try to replace the RAM
1 long + 8 short beepsThe video adapter test failed. Reseat the video card and connect any power cable it needs to run properly. If the problem still exists, then replace the video card
SirenCould be a voltage or CPU fan problem. Inspect the CPU fan or voltage settings in your BIOS to fix this issue

IBM BIOS Beep Codes

Beep PatternWhat’s the Issue / Hardware to Check
1 short beepNo issues during POST check
2 short beepsCheck screen for error codes
Continuous beepsPower supply/mobo/keyboard problem
Short repeating beepsLow power to the motherboard
1 long and 1 short beepMotherboard issue
1 long and 2 short beepsGPU error
1 long and 3 short beepsKeyboard or GPU failure issue
3 long beepsNo communication between the motherboard and the keyboard controller

Macintosh BIOS Beep Codes

Beep PatternWhat’s the Issue / Hardware to Check
1 beep after every 5 secondsNo RAM found
3 short beeps after every 5 secondsRAM not passed the integrity check
1 long beepEFI ROM update in progress
3 long, 2 short, and 3 long beepsEFI ROM error


So if your PC is restarting with constant beeps or the PC beeps once and then restarts, then you should note down the sequence of those beeps to track the problem. But sure you identify your motherboard’s BIOS before you begin the troubleshooting process. Every BIOS signals a different pattern of beeps to let you know about the hardware that’s causing the issue. You can use the above tables to learn which hardware you need to deal with.

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