POWER SUPPLY Power-supply selection is just one more area that requires attention. You see the old case was designed in an era where 80mm fan power supplies were common. However today these older style supplies are a little harder to find. There are two reasons to sourcing one of these older supplies, and i will tell you why. firstly is the benefit to airflow that it has. the direction of flow is superior to the 120mm fan types and secondly you will be more likely to find the plug and switch in the original position. You can see in the photo, one of my regrets in modifying this case, I cut out the fan grill to the supply. I wouldn't have had to if i had this power supply in the first place I would love to replace that panel in the future For reference i am using a Antec, Neo HE 430watt, semi modular.