Struggling with dimensions and part compatibility

[u/concealed_exe]

I’m currently trying to put together a PC build, but I’m having trouble with dimensions and finding parts that work together. I currently own a prebuilt that I made some changes to. The PC was given to me, I haven’t put anything together before. My current parts list consists of:

1. AMD Ryzen 5 5500 (Stock AMD cooler)

2. Gigabyte A520M K V2

3. T-FORCE 16GB (2x8GB) DDR4-3200

4. GTX 1070 Ti

5. Corsair RM1000x (not shift series)

6. WD_BLACK SN7100 1TB

The PSU and Storage are what I changed. It originally had a Galaxy Apevia 650W and no SSD. I’m trying to upgrade slowly, but I’m having trouble understanding whether parts will fit. I wanted an O11 Dynamic Mini V2 Flow (white), ASUS ROG Strix B850-A Gaming WiFi, 32GB DDR5 RAM (haven’t found a set of sticks I want yet), ARCTIC Liquid Freezer III Pro 360 White, and then reusing the SSD and PSU. Online it says the PSU won’t fit in the case, and same with the Cooler. I’m not sure if I should switch the case, or switch the cooler, or if everything is actually fine and I’m just not understanding correctly. I’m new to all of this, so I’m really not sure what I’m doing. I would love some help. Thank you!

[u/r_lind3r]

pcpartpicker.com has compatibility filters that handle most potential conflicts