• Geek 007

PC Beeps ~ Explained

Updated: Jun 8

Have you ever noticed when you turn your PC on, that it sounds a short beep before it starts up? You may have even noticed more than one beep and wondered whether this is something to worry about.


The good news is that one beep usually means that everything is just fine and the computer is about to run through what is known as the Power On Self Test – or POST for short. Before a computer starts Windows, or whatever operating system you have installed, it will run through a series of checks to ensure all hardware such as the hard drive, CPU, graphics card and other components are functioning normally.


Hearing more than one beep, a long beep or a series of short beeps usually means something has gone wrong, and this is where our guide below might come in handy. Not all beep codes are the same, and they may vary between manufacturers.

No beep – this may mean there has been a short circuit or that a peripheral is loose inside the computer.


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One beep – nothing to see here – all is well.


Two beeps – this usually means there is a problem in the CMOS/BIOS and will often be accompanied by a scary error message on the screen.


One long beep and one short beep – this may mean there is a problem with the motherboard and could be down to failing or blown capacitors.


Two and sometimes three short beeps – this could signify a problem with your graphics card. If it is integrated into the motherboard, you may need a complete replacement motherboard. If you have a separate video card, it may be a case of simply reseating the card or cleaning out any dust that may be hampering normal operation.


Three long beeps – this could be a keyboard error and may be accompanied by an error on the screen. Check for any stuck keys. Crumbs are also a big culprit in our experience, so turning your keyboard upside down and giving it a shake could be all that is required here. Check all USB connections, too.


Repeated long beeps – this could signify a problem with failing memory.


It is important to remember that not all beeps mean the same thing and can differ between manufacturers. For example, three beeps on a Macbook Pro could mean that there is a problem with memory.


Your computer manual may hold a clue as to what certain beeps mean, but if you are in any doubt, for more information on how we can help you keep your computer in great shape, or for advice on how to fix it if your computer is already in need of repair, call us at Goldmine IT Support Ltd today 0207 583 2650 or 07951 337 336.

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