Computer beeps two times repeatedly

Hello,

Some time ago my computer just died. After some testing I figured out the problem was the motherboard. I bought a new one online, plug on everything and when I started it, it beeped twice non-stop (short beeps). The fans are running but there is no image.

I figured the problem could be the RAM sticks, so I got two out of a working computer and switched them. The working computer kept working with my PCs RAM, but my PC didn't. So I ruled out memory failure.

I tried the same thing with the power supply, same thing.

I do not have a graphic card, so that's not the problem either.

I also tried reseting the cmos and replacing the motherboard battery, no luck.

Finally I decided to take out the processor, the beeping stopped. There was still no image so I don't really know what the problem can be.