I find the best way is to start with one thing at a time.
1. Take out the cpu, ram and anything else plugged into the motherboard (except the power)
2. Turn on the computer. It should beep at you. This means your motherboard is POSTing and is working properly.
3. Turn the computer off (you will have to probably hold the power button for 8 seconds)
4. Plug in the video card and connect a monitor. You should be able to see the post happen (or it will just beep at you because there is no memory or ram)
5. Turn the computer off.
6. Plug in the CPU. Turn on the computer. You will either see it POST or beep at you beacuse there is no memory
7. Plug in the memory. Turn on the computer. This time you should see it successfully post.
A couple of things to check.
1. Verify the memory and CPU are supported by your motherboard.
2. Verify that the motherboard or video card does not have any extra power requirements. You should be able to find all this information in the product guides provided from the manufacturer.
