Stock PSU Stuck in Case - Predator Orion 3000 PO3-600

AceDefective
AceDefective Member Posts: 2 New User
Hello. I am planning on upgrading my PSU from the default 500W to 750W, but the PSU seems to be stuck to something. I searched the forum already, but the only relevant post made it seem as if I shouldn't have a difficult time with removing it. I removed all necessary screws, and it still won't come out. Pictures provided to show PC. 

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