Thats exactly what im teying to find out. Im hoping iust a splice into a larger fan wiring will be enough. But just waiting on parts to be delivered before i can start.
with yours i would just cut the connector off the stock fan and wire it to the fan ur trying to install , then just plug it back into the stock location.that would take care of everything as then u wouldnt have to trick the psu into thinking the stock fan was still there
sp20's used what apears to be the same fan connector , i have a couple here if u want me to dig one out and take a picture , if its the same u could get a fan out of an sp20 and just plug it in without having to splice anything