I just purchased a GA-Z170X-Ultra Gaming Motherboard and I'm trying to use an old dell power supply(the exact one as you see here) to power it. The output max for my power supply is 305W, will that be enough to power up my motherboard and cpu? I've been trying to get it to work and I don't know what the problem is. I know the psu works but my motherboard has an 8 pin power connector while my psu has a 4 pin connector. I've read online that it can still work but nothing turns on for me. Anything helps, thank you.