Trying to mod Mac Pro (original) case

TL:DR. How do i remove the divider between the motherboard and power supply at the top.

I've been searching all over the internet and have not found an answer so ive decided to try here. I have an old Mac Pro case that i got from work which im trying to gut and put a normal PC in. Im stuck trying to remove the divider between the motherboard and PSU/Disk players. Ive removed every single screw i can find and tried to remove it in a couple ways(including a hammer). Does it come out? Ive invested quite a bit of time into this project and i dont wanna give up now. Thanks in advance!

submitted by /u/epicsadfacegaming
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