Trouble:
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.
Fix:
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.
Tags: boot, POST, RAM, start-up-beep
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Author + Admin: Abhishek BhatnagarHi, I am a Software Engineer by profession and blogger by passion, I write about computer tips and tricks and solutions for computer problems. You can connect with me at twitter or know more about me on www.abhishekbhatnagar.com.
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.
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.
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
@ Mundeeb
one beep at start-up usually means that everything is fine !
[...] reason I was suspicious about these two are that computer beep at startup was normal, that means the mother board and processor were ok, and RAM is properly fitted in the [...]
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
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:)
[...] No Beep At Start up [...]
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..?
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?
thanks,
R
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
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!
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
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