I have a Rosewill Redbone U3 ATX, which I am very happy with, but I haven't bought a PSU yet (waiting for the price to drop). I have this old Dell desktop that I know is working, so I pulled the power supply to see if my system is working. However, the PSU doesn't physically fit into the case (the bottom part of the PCI slots is blocking it from entering fully) ,and I can see that the screws don't line up properly. What should I do? Also, the power supply is a 375W Dell PSU
https://www.amazon.com/Dell-Power-Supply-L375P-00-P8401/dp/B000MMJ6EW
https://www.amazon.com/Rosewill-Black-Computer-REDBONE-U3/dp/B006CSKMKW/.
This is my first PC build and I didn't expect things to go amazingly smooth, but I didn't expect this either. Thanks in advance.
https://www.amazon.com/Dell-Power-Supply-L375P-00-P8401/dp/B000MMJ6EW
https://www.amazon.com/Rosewill-Black-Computer-REDBONE-U3/dp/B006CSKMKW/.
This is my first PC build and I didn't expect things to go amazingly smooth, but I didn't expect this either. Thanks in advance.