Hi I just ordered a case for my new build and the power supply is going to have to be installed at the bottom. I anticipate that there is a strong possibility that the cable will not reach the motherboard comfortably, now I have access to more 24 pin supply cables. Would these cables work as extensions, as in plugging directly into the cable that comes with the psu at one end and then the motherboard at the other? Or do I need an "extension-specific" cable? First build I'm afraid.