Question how many hdd can i put in 180 watt psu after modification

[SiscoColin]

i have a 180 watt psu running i3 4170 ,or can i modify to add another sata port and can it handel 3 drives 1 ssd and 2 hdd

 

[lvt]

i have a 180 watt psu running i3 4170 ,or can i modify to add another sata port and can it handel 3 drives 1 ssd and 2 hdd

You will be OK, there are plenty of all-in-one PC having an i7 with 1 x SSD + 1 x HDD (2.5"), and the system is powered by a 120W adapter including the screen.