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I am using a Gigabyte GA-H87-D3H with i5-4670 CPU and it used to work fine without any issues. Yesterday it was working fine but today this morning when I turned on my pc then it was not booting at all. When I try to start it then it boots but stays on black screen and the there is more than 20 beeps sound without any stopping. After this beep codes the power turns off automatically and cylces in this way. Can anyone tell me how do I solve this problem? Thanks
Did you try to switch the RAM sticks in different memory slots or else try a different set of memory altogether. You can also try to clear the CMOS by taking out the battery from the motherboard for 15 minutes and then put it back on to the motherboard. Below are different beep codes for different BIOS model:
AMI BIOS:
1 short beep ：Memory Error
2 short beep：Memory parity check error.
3 short beep ：basic memory 64K address check error
4 short beep ：Real Time Clock malfunction .
5 short beep ：CPU error
6 short beep：Keyboard error
7 short beep ：CPU interruption error
8 short beep：Graphic card error
9 short beep ：Memory error
10 short beep ：CMOS error
11 short beep ：CPU cache memory malfunction
AWARD BIOS:
1short beep ：System normal
2 short beep ：CMOS Error
1 long beep and 1 short beep：Memory error
1 long beep and 2 short beep：Graphic card error
1 long beep and 3 short beep ：AGP error
1 long beep and 9 short beep : Memory Error
Continuous long beep ：Memory not correctly installed
Continuous short beep ：Power supply unit failed
You can also try to disconnect the power to the CPU plug port and check if that works. It seems to me like that it is not getting power to something. Have you tried to boot the pc from the onboard video itself. You can try to do some testing on your board and remove the CPU as well. You computer will start up and after a couple of seconds it will shutdown and stay in the same loop. Try to do the same thing with the video card as well. The power to the CPU could be dead on the Power Supply.
Even I had this similar problem with my pc once. What you need to do is power down the whole computer and then disconnect all the main power cords to the PSU and from the wall as well. After that press the fron power button for 50 seconds to clean switch contacts. Also try to ensure that the switch feels positive and that it is returning to normal. If you want then you can also try the compressed air to clean the dust and see if that helps. After that power back the PC and see if it boots normally.