What does 4 beeps mean on startup?

What does 4 beeps mean on startup?



The BIOS (Basic Input/Output System) is a software code that locates and loads the operating system into RAM. It is very basic software installed on the motherboard that allows the motherboard to do its job. It provides low-level communication, operation and configuration of the system hardware that drives the keyboard (usually) and provides basic output (emitting standardized beeps through the computer’s speaker if faults occur) during boot-up. The BIOS, usually in low-level (assembly) language.

The mainboard is a printed circuit board that supports the other parts of the computer. It has a series of integrated circuits installed, among which is the Chipset that serves as the connection center between the processor, the ROM memory, the expansion buses and the rest of the devices. The motherboard also includes software called BIOS, which allows it to perform basic functionalities such as device testing, video and keyboard management, device recognition and operating system loading.


We will start by telling you a little more about these beeps, and then we will tell you the beep codes used by the main BIOS manufacturers. Here, you should know that depending on the manufacturer of your BIOS a certain combination of beeps can mean one thing or the other, so the first thing to do is to look at your computer’s manual or its components to identify what your computer’s BIOS is.

Your computer speaks to you, although sometimes it may be in a language you don’t understand. Every time you turn on your computer, the BIOS performs a system check to make sure that all components are working properly, and for safety reasons, this is done before you start loading the operating system.

You should be aware that the beep code is not universal, and that each BIOS (or UEFI) manufacturer makes their system sound one way or another. That is why it is important that you know which is the manufacturer of your BIOS, something for which you can use your computer’s manual or applications like CPU-Z, which analyze your hardware components and tell you what they are.


The problem is when the tone of the beep is not what you are used to and this is where you have to start getting used to it.As I know this is a topic that brings many people upside down, I am going to talk to you today about the meaning of each type of beep. Knowing what’s going on I’m sure you’ll be more at ease.

If you have been trying to fix your computer on your own and you find that you don’t know how to do it, it is likely that your computer is already giving you a universal concert of beeps. If you have any questions, you can write us a message to our technical support and we will see how we can help you.


However, if the computer beeps and Windows does not start up properly, there is a more serious hardware problem. The most common problems that generate beeps are as follows:

Listen to the sound emitted and note the number of beeps before each pause, whether the beeps are long or short, or whether the beeps are high or low pitched. Once you have determined a pattern, use the sound code table below to identify which component might be causing the problem:

Use these codes to help troubleshoot problems related to system startup or BIOS memory update (as in BIOS updates). When you need further solutions, refer to the What to do when beep codes occur section. Four sets of beeps indicate a serious error, i.e., there is a problem that prevents the computer from booting. For example, there may be two beeps, a short pause, one beep, a short pause, one beep, a short pause, and then three beeps; this is represented as 2-1-1-3 in the tables below.