Oh, I thought you bought one built by Newegg, not just one being sold through Newegg.
Your motherboard isn't specified in that, so I'm going to assume it's got the general Intel-branded motherboard inside it. If that's the case, there's nothing really special about it. It offers excellent performance, but doesn't have any particularly fantastic features. It supports a maximum of 16GB RAM. I can't find if it says anything about support for nVidia SLI, but if it DOES, see if your videocard supports SLI.
The reason I say this is because, if you CAN do SLI, getting a second videocard of equal or lesser value would probably give you BETTER performance than spending the money on a completely new one. OR, you can buy a new one that's DX11-capable and keep the old one, linking them together. This would offer incredible video power that a single card typically can't do.
I don't know much more about SLI though, particularly since I've always been a Crossfire guy, but y'know.
Also, for future reference, don't spend money on prebuilt systems. It's actually not that terribly hard to build your own, and you would have spent a TON less building that one on your own. Easily a couple hundred dollars which could have gone to a larger HDD and better videocard.
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