Two Fan Headers On Motherboard, One CPU & one normal pwm. The normal 4 pin header is on the rear of the motherboard close to the IO Area but my case can hold two case fans one in the front and one in the top rear. The one in the front is what im worried about not being able to connect it to the rear header because i hear using a y connector with the cpu fan isnt a great idea. If i use a y connector to connect both the rear and front fans with the front using an extension plus the y connector this will go over the motherboard and im afraid of either issues with compatibility for pwm and or interference with parts on mb, Any help ?