Amr Hussein

Hello All, i have just got my thermaltake view 91 a month ago , every thing was going so well till i powered off my machine 2 days ago then suddenly : after shutdown chassis fans (back and front) will not stop while the other connected fans stopped. also i can see the chassis power led turned into red "after shutdown" can you please tell what does the red light means ? also can you advice me why the fans aren't stooped any more after shutdown? would it be the mother board or the power supply? thanks in advance. Current Mother board === > ROG Zenith II Extreme Processor : AMD 3960X Power supply : Seasonic FOCUS Plus 1000 Gold SSR-1000FX 1000W