No, the Newegg refurbs for Gainward are not usually OEM.
They state OEM/Barebones for their own protection, as manuals, CD's, or other may be missing.
They are usually cards that were returned as defective, and checked out, and if they "appear"
to be O.K, then they are put in refurb section. Friend returned his "New" GS due to issues with Counter Strike.
Replacement card worked fine, so problem was with the card he returned. So I'm sure his old card ended up
in the refurb section, because unless the tester was real picky and tested with Counterstrike, he would probably
not see any problems. Returned card did seem fine otherwise, and easily overclocked to 262core/561mem.
You never know where a Newegg refurb has been, or what problems previous buyer had with it (or how much they overclocked it).
Chances are, it will be flacky with thing or another though.