Question How can I check if my gpu isn’t a fake without a pc?

Nov 20, 2019
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I recently bought an RTX 2080 tagged as ‘new’ from a reseller on Amazon’s site.
I received the item and it looks just fine; it has sealed bags, warranty stickers, accessories ( with silica gel ) the driver’s cd and even some codes for a few benchmarking apps.

Now, I’m most likely being paranoid about it, but the price was so unreal ( 300€ off the retail price ) I’m still unsure if I catched a deal or if I got scammed.

I’m actually building my first pc and I’m still missing some parts, therefore I can’t test it.
Is there any other way to check if it actually isn’t a fake?
Thanks.
 
Nov 20, 2019
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What brand? Maybe the manufacturer's support site allows you to look up your product via serial number, which could hopefully at least tell you whether the S/N is valid and corresponds to a RTX 2080.

It’s an Inno3D, I already tried redeeming promotions with the S/N but it looks like I still need to register it