Ha, if it works, right?
There were some changes and additions few years ago, for example that big main plug for motherboard went from 20 to 24 pins. Lots of PSUs still come with connectors that will fit both, with a small 4-pin segment being detachable. It's similar with that CPU plug, some boards requiring 4-pins while others accept 8.
As long as everything is connected you're good to go.
