Yes, it can be used with two 8-pin Power connectors.
Yes, it can be used with two 8-pin Power connectors.
You've got the image and the setup is clear. With just two 6+2 pin connections, the GPU should still function, but you might need to purchase an additional adapter or upgrade to fit. It’s unlikely you’ll need a full $100+ investment unless you’re using a very specific model.
Don't worry about it! Appreciate the assistance! I'll just swap the PSU next day.
Another issue I’d worry about is temporary loads. Can the power source manage them? Verify that your power supply is capable of handling such conditions.