what did i do (PS / Mobo related)

I have a 20 pin mobo and a 24pin power supply. Am I screwed? Do i have to go and buy a 20 pin PS?

Re: what did i do (PS / Mobo related)

i've seen convertors online, but they all seem to do 20pin PS to 24 pin. I need something that does 24pin to 20pin ...