Computer won't boot up. 1 long beep followed by 2 short ones.

As said in the title, computer won't start. It all happened when I was playing and the game froze. Since I couldn't close it, I tried forcing the computer to shut down but it still didn't turn off. So I switched it off from the plug.

When I tried to start the computer again, it didn't boot as usual and the 1 long beep and 2 short ones happened.

CPU : Intel(R) Pentium(R) D CPU 3.20GHz
GPU : ATI Radeon HD 5670

I have no manuals of the motherboard and when searching on the internet, phoenix beeps are like (1-2-2-3) not (1-2) like in my case.

Is this like some sort of a fatal error? What's the solution to this? Suggestions on which hardware I need if any certain hardware needs to be changed? Thanks in advance.

ps. also I don't know in which category this thread should be

here is the beeping if anyone needs it http://
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  1. Best answer
  2. Seems it over-heated or something, cause left it for some hours and tried to turn it back on and worked as usual. thankyou
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