computer always beeping checked all plug in and cables inside computer cant stop it?

I answered your other question earlier on and gave you a link to all the beep codes.

Until you determine what the code is it will tell you what is wrong.

Like hardware cards not seated properly or have failed. Overheating components

like the CPU etc.

Listen to your beeps. They are an indication of where the fault lies. AMI BIOS beeps 8 short 1 long for a problem with the video card for example.

To check your machine remove all your cards except for one ram chip. Start your machine and look at your keyboard lights. If they flash you have passed the POST. Your current hardware is ok if there are no longer any beeps.

Shut down and start adding cards. Reboot after adding every single card.

That beeping is your BIOS telling you what is wrong.

Its a bit like morse code - you need to know how to read it. Google BIOS codes for your make of computer and then you will find out whats wrong and what needs fixing.