Using 4 pin cpu power supply on 8 pin

Hello,
My motherboard has an 8 pin input but my power supply only has a 4 pin. i plugged in the 4 pin and did a test boot and nothing happened, is it because of the power supply or something else?
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More about using power supply
  1. What processor are you running? It sounds like you're talking about a CPU power connector. The processor may not be getting enough power with just one 4-pin connector. It is recommended that both slots are used on motherboards requiring an 8-pin connector.

    Does your power supply have other 12v ATX 4-pin connectors?
  2. Many motherboards come with 8pin connectors for the CPU but like in your situation many motherboards only provide 4pin. I am using the same 4pin on a 8pin motherboard without any problem. So you don't need to worry about that. Just place the 4pin connector in the right place and if I am right the in top 4pins.
    If your computer still doesn't boot there must be a problem with other components in your system like ram. Please try this and report back.
  3. Anthonyhaddrick said:
    Hello,
    My motherboard has an 8 pin input but my power supply only has a 4 pin. i plugged in the 4 pin and did a test boot and nothing happened, is it because of the power supply or something else?

    Hard to say, you haven't given much to go on.
    Did you have a cpu on the board ?
    What board is it ? Some will work with just a 4 pin, others want that signal that says an 8 pin is connected
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