Upgrading ram on Tablets?

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http://androidforums.com – I've recently bought a generic chinese tablet, it says it uses DDR3 ram, I've got a few 1gb DDR3's laying around my room and was wondering if it was possible to do that upgrade? I would try it now but I don't know how to take the case off of this damn thing ._. when I figure it out I'm going to try it and I'll update this thread. But my question is umm, has anyone here ever upgraded the ram on their tablets? If you have was it difficult? did you have to be a specific type of ram? did it make it any better? Hopefully I get some replies. :p (General)