No beep at start-up. Computer does not boot.

by Abhishek Bhatnagar on December 31, 2007



Some times we turn on the computer and it does not turn on. There is no beep (sometimes many beeps in a pattern), or any kind of display and the computer does not boot. This happens when POST (power on self test) for the computer fails. Lets see why this happens and what to do in such cases.


POST(power on self test) is a test which is done by the computer every time it is powered on. This test, all the physical hardware components of the computer are detected and tested for proper working. If any of the critical computer component is faulty or not detected, the POST fails. After this test fails, the computer does not go further and does not boot. There can be several reasons for failure of POST.


One of the most common reason is faulty or loose RAM module. So next time your computer does not give a beep at start-up and does not boot, perform the following checks.

  • Check that the RAM module is properly inserted in the RAM slot. If not, correct it.
  • If there is lots of dust around it, clean it with a DRY cloth gently. If needed, remove the RAM module from the RAM slot carefully and clean the contacts with DRY cloth and insert it back carefully.

The above two checks will Fix the trouble in most of the cases.

NOTE: If there are more than one beeps in some pattern and the computer is not starting, refer to the beep code corresponding to your BIOS to know the reason for failure see this link.

If you like this article or this article helped you, you can +1 to recommend this article on google plus.

You can follow us on Twitter or join our Facebook Fan Page. If you have a question to ask us, submit your question at Answers By Trouble Fixers.

Looking for something else? Search here :

{ 17 comments… read them below or add one }

Zana Elfy February 27, 2008 at 5:10 am

Some cases the CPU fan is loose or not connected in, this can also cause the same problem. In some motherboards, a graphics card or PCI card not inserted in properly can also result no beeps or a series of beeps.

ashu April 28, 2008 at 4:09 am

I am not able to give user a permission on C:\WINDOWS\Downloaded Program Files on this folder.

this is a local user in domain.

Administrator can access it but i want that a user can also access it.

is it possible or not.

muneeb May 29, 2008 at 4:21 am

i recently bought ram on 1 gb ddr400 cl3
mine was 256 before this is a dell system and now when i put the new one the pc gives a bep sound on startup is it not the case when the new ram is not supported or why this beep sound is coming ? plz reply

Rohit May 29, 2008 at 9:31 am

@ Mundeeb

one beep at start-up usually means that everything is fine !

endro November 7, 2008 at 6:17 am

my computer not start up when i plug power cord & press power swich .After some minits (5-10 minits) it start running .still some times not start

Sandy May 6, 2009 at 4:38 am

after my computer hung up, i switched it off from the main swith and after that it started beeping but didnot boot. thanks for this solution, there was loosening of RAM which fixed the problem:)

Luke November 30, 2009 at 8:45 am

System is an HP desktop, emitting several beeps, with no post screen.. Since this started it posted once, then its failed to do that again..?

Kips December 17, 2009 at 1:21 pm

I recently bought a Dell system (s530) and when booting the system up, the fan produces noise like a jet engine and the POST won’t even show up and screen is blank.

I tried checking the RAM and every hardware but still to no avail.Any idea why this might happen and how i could fix this problem?


christ December 18, 2009 at 7:37 pm

a pc fail to perform self test, no booting no video and no sound, but there is a video card in it and the power supply fan and cpu fan spinned

jeffs January 20, 2010 at 9:55 pm

i would like to thank you for the coments that everyone has given and hope to solve it yes i can it seems to be some sort of looseness in the pc because it was transfered in a truck and was some what knocked around so this may be the issue ill do some checking!

Amaju February 24, 2010 at 1:55 am

Thanks for the solution,its like its my C P U fan that is not tight .i will tighten it and clean up the RAM and sees if it will work

nutta November 12, 2010 at 2:18 am

my comp froze after being all updated and scaned after being off for some time due to not working and beebing lots i pushed things and whiped dust and started to work so that y just sorted but it froze which didnt happen before left hour to see if would sort self out didnt so turned off by button,tryed to put back on but just after putting password in it would freeze up again so left for whi.e nothing changed so turned off now beebing again counted 15 beebs before i turned it off again now pushed everything again and cleared little dust as only been working few days before going again but no joy can anyone help me out pleese ?????

Tim Goad December 19, 2010 at 12:28 am

my os is windows xp.
it shows the blue screen of death when it turns off automatically.
i disabled the automatically restart thing from my computer properties.
i rebooted it in safe mode.
it shows an error message saying its a system failure.
it’s some software/ hardware problem.
how should i fix it?
any suggestions?

immy August 12, 2011 at 12:21 pm

iam facing problem when i clicked to the “add or remove program ” (THE APPLICATION FAILED TO INITIALIZE (0xc0000005).CLICK ON OK TO TERMINATE THE APPLICATION)

Devsagar November 7, 2011 at 9:50 pm

There is a hardware devise problem or software . Some time use diff. Type of hardware which is not take any change’s. So DO one thing use compatible hardware and the second one go to bios setting and default all setting problem will be rectified.

Leave a Comment

Previous post:

Next post:

© TroubleFixers – All about fixing computer troubles2007-2016 . All Rights Reserved.