GPU Plate touching raw metal

Cloud_4

Prominent
Mar 26, 2017
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510
http://www.xfxforce.com/en-us/products/amd-radeon-rx-400-series/rx-480-gtr-black-8gb-dd-led-rx-480p8dba6

Okay if you look at the picture from the manufacturer's site, the prongs on the right got in the way during the install of the GPU. My Mid-ATX NZXT case had some knockouts in the way, and unfortunately, I wasn't able to remove them entirely, and I scratched the paint off the knockouts in the process.

So my question is, if there were raw metal touching the plate, is that a problem? I was able to screw the card in, but this nagging suspicion has been bothering me.

Thanks for any answers